HELPPP PLEASEEEEE, BRIANLEST WILL BE GIVEN ON CORRECT!​

HELPPP PLEASEEEEE, BRIANLEST WILL BE GIVEN ON CORRECT!

Answers

Answer 1

work done =force /area

=500/50

power =work done * time taken


Related Questions


A car travels from Kathmandu to Hetauda. The distance covered by it in 4hrs is
200km. Find the average speed of the car.

Answers

Answer:

50km/hrs

Explanation:

speed= distance/time.

the work a force does is measured in?​

Answers

Explanation:

work a force is measured in newton-meters (N-m)

[tex] \huge \hookrightarrow \mathfrak{ \green{Answer}}[/tex]

we know,

[tex] \boxed{ \small{workdone = force \times displacement}}[/tex]

[tex]\longmapsto \: work \: done = N \times m[/tex]

[tex]work \: \: done \: \: is \: \: measured \: \: in \: \: \boxed {\color{gold}{Nm}}[/tex]

Nm = Newton meter

If an object is moving and the sum of all the vector forces on it is zero, then the object will:
accelerate at a constant rate
come to rest
move at a constant speed
none of the previous

Answers

If an object is moving and the sum of all the vector forces on it is zero, then the object will move at a constant speed. The correct option is c.

What is vector force?

A force's magnitude and direction are both represented by a force vector. This contrasts with expressing the force's magnitude alone, which is known as a scalar quantity.

Typically, a vector is represented by an arrow that points in the direction of the force and has a length proportionate to the strength of the force.

Therefore, the correct option is c, move at a constant speed.

To learn more about vector force, refer to the link:

https://brainly.com/question/13492374

#SPJ1

Until 1979, the world's easiest driving test was administered in Egypt. To pass the test, one needed only to drive about 6 m forward, stop, and drive the same distance in reverse. Suppose that at the end of the 6 m the car's brakes are suddenly applied and the car slides to a stop. If the force required to stop the car is 6.0 X 10^3 N and the coefficient of kinetic friction between the tires and pavement is 0.77, what is the magnitude of the car's normal force? What's the car's mass?

Answers

(a) The magnitude of the car's normal force is 7,792.2 N.

(b) The mass of the car is 795.1 kg.

What is the weight  of the car?

The weight of the car is calculated by applying Newton's second law of motion as shown below.

Mathematically, the formula for Newton's second law of motion is given as;

Ff = μW

where;

W is the weight of the carμ is the coefficient of kinetic friction between the tires and pavement

The weight of the car is calculated as follows;

W = Ff / μ

W = ( 6,000 N ) / ( 0.77 )

W = 7,792.2 N

Based on Newton's third law of motion, the weight of the car acting downwards is equal to normal force on the car, acting upward.

The mass of the car is calculated as follows;

W = mg

where;

m is the mass of the carg is acceleration due to gravity

m = W / g

m = ( 7792.2 ) / (9.8)

m = 795.1 kg

Learn more about normal force here: https://brainly.com/question/14486416

#SPJ1

An astronaut weights 8x10^2

Answers

Answer:

800

Explanation:

10^2 = 100
8 x 100  = 800

draw diagram of how a reflecting telescope works. show how the angles of reflection would work with mirrors placed at 2 different angles

Answers

Lenses, which are pieces of curved, clear glass, were employed in early telescopes to focus light.

What is Telescope?

Curved mirrors are used by the majority of telescopes nowadays to collect light from the night sky. Light is focused by a telescope's mirror or lens' shape.

Astronomers use a telescope to observe distant things. Curved mirrors are used by the majority of telescopes, including all large telescopes, to collect and concentrate light from the night sky.

The original telescopes employed lenses, which are simply curved pieces of clear glass, to focus light. The "optics" of a telescope are the mirrors or lenses. Strong telescopes may view objects that are extremely faint and incredibly far away.

Therefore, Lenses, which are pieces of curved, clear glass, were employed in early telescopes to focus light.

To learn more about Telescope, refer to the link:

https://brainly.com/question/556195

#SPJ1

1) Calculate the time required for a 6,000.-newton
net force to stop a 1,200.-kilogram
traveling at 10. meters per second. Show all
work, including the equation and substitution
with units.


PLEASE HELP!!
I need equation, substitution with units and final answer +explanation. TYSM

Answers

According to the given statement The time required is 2 seconds.

What is Force ?

An unseen factor is an agent that has the power to alter the resting or moving condition of a body. It has a direction or a magnitude. The stress applied is the location at which force is applied, and the direction where the force applied is known also as direction of the force.

The vector composition of mass (m), acceleration, and the amount of force is used to express force (a). Mathematically, the equation or equation for force may be written as follows:

                             Force = mass x acceleration.

We know the force and the mass, so we can write:

6,000 N

= (1,200 kg) x (acceleration).    

      i.e. Acceleration = 6000N/1200kg = 5 m/s² .

That's the acceleration.  The speed changes by 5 m/s each second

that the force acts on it.  If the force pushes from behind, then it goes

5 m/s per second faster. It moves 5 m/s slower each second if the force is pushing from the front.

We wish to slow it down from its current speed of 10 m/s to 0 m/s. Therefore, the force must push from the front, and the task will be finished in (10/5) = 2 seconds.

So, time required is 2 seconds.

To know more about Force visit:

https://brainly.com/question/13191643

#SPJ1

A crane exerts 56000 Newtons of force over a distance of 4.5 meters. how much power was generated if it took 4.2 seconds to accomplish this?

Answers

Answer:

E = F * S       definition of energy

P = E / t = F * S / t         definition of power

P = 5.6E4 N * 4.5 m / 4.2 s = 60,000 watts

A student pours a spoonful of dirt into a cup of water. The water and dirt are stirred together. The water turns a light brown color. Some dark pieces float to the top of the cup and another dark layer forms on the bottom of the cup. Which statement BEST describes the contents of the cup?

Answers

The statement that is correct is that the contents of the cup form a mixture.

What is the nature of the cup?

Though the question is incomplete but I would try to give you a good explanation as much as I can. We must recall that when we talk about a mixture, we have to note that the term mixture would refer to the combination of two or more substances that do not chemically react together.

In this case, we have been told that we have a water that was pure and then we add dirt to it. It is clear that the water and the dirt do not react in any way hence what we have formed is a mixture.

Learn more about mixtures:https://brainly.com/question/24898889

#SPJ1

which of the following changes will increase the period of an oscillating spring mass system?
a. an increase in the mass on the spring.
b. an increase in the initial displacement of the spring.
c. an increase in the spring constant.
d. more than one of the above.
e. none of the above.
explain your answer. NO LINKS. ​

Answers

Answer:

a. an increase in the mass on the spring.

Explanation:

An increase in the mass on the spring will increase the period of an oscillating spring mass system.

Mathematically, the period of an oscillating spring mass system is given by the formula;

T = 2π √(m/k)

Where;

T is the period.

m is the mass of the spring.

k is the spring constant.

Hence, the mass of a spring is directly proportional to the period of oscillation of the spring.

This ultimately implies that, as the mass of the spring increases, the period of oscillation will increase. Similarly, the period of oscillation will decrease with an increase in the spring constant.

Calculate the potential energy of a rock of mass 500 g, held at a height of 2 m above ground.

Answers

The potential energy of a rock of mass 500 g, held at a height of 2 m above ground is 9.8J.

The formula for the gravitational potential energy of an object is:

PE = mgh

where m is the mass of the object, g is the acceleration due to gravity (approximately 9.8 m/s^2 on the Earth's surface), and h is the height of the object above the reference point.

So, in this case, we can plug in the given values to find the potential energy of the rock:

PE = (500 g) x (9.8 m/s^2) x (2 m)

The weight of the rock is m*g = 500 g * 9.8 m/s^2 = 4.9 N

Therefore,

PE = 4.9 N x 2 m = 9.8 J

Therefore, the potential energy of a rock of mass 500 g, held at a height of 2 m above ground is 9.8J.

Learn more about Energy:

https://brainly.com/question/29979940

Excepting a dare to do something physically dangerous is an example of this kind of influence is it (A Direct negative (B Indirect negative (C Direct post ( indirect post

Answers

Answer:

a

Explanation:

given that you know the risks it is directly negative

How long will a boy sitting near the window of a train travelling at 36 km h see a train passing by in the opposite direction with a speed of 18 km h^-1.The length of the slow- moving train is 90 m.​

Answers

Answer:

5/18 is used to convert km/hr into m/s

1 km = 1000 m

1 hr = 3600 sec

1 km/hr to m/s

1*1000/1*3600

1000/3600metre/sec

10/36metre/sec

5/18 metre/sec

Explanation:

srry if this is wrong!

Which of the following could be used as an INSULATOR?

a.) plastic plate
b.) silver spoon
c.) copper wire
d.) gold necklace

Answers

Answer:

Probably copper wire

Explanation:

I took the class and that's the only one that sounds right but I'm pretty dum lol

plastic plate- its styrofoam with keep the air in!

Drag and drop the terms at the left to match the appropriate descriptions at the right. ResetHelp Visual acuity Emmetropia Accommodation Astigmatism Myopia Hyperopia Presbyopia Refraction : normal vision. : reduction in visual acuity due to irregularities in the cornea or lens. : farsightedness. : nearsightedness. : age-related farsightedness due to loss of elasticity in the lens. : sharpness of vision. : bending of light rays. : changes the shape of the eye lens to focus light on the retina.

Answers

Answer: Visual acuity: sharpness of vision.

Myopia: nearsightedness

Refraction: bending of light rays.

Emmetropia: normal vision.

Accommodation: changes the shape of the eye lens to focus light on the retina.

Presbyopia: age-related farsightedness due to loss of elasticity in the lens.

Astigmatism: reduction in visual acuity due to changes in the cornea or lens.

Hyperopia: farsightedness

Myopia and hyperopia are refractive errors of the eye.

Presbyopia occurs in old age people.

Explanation:

Visual acuity: It can be defined as the inability to observe the details of shape of the object. Person loses sharpness in vision.

Myopia: It is a defect in vision in which person is able to observe the near by objects clearly but not able to see the distant objects.

Refraction: It can be defined as the bending of beam of light when it passes through from one substance to another.

Emmetropia: It is a vision without any defect.

Accommodation: It is the ability of the eye to adjust its focal length and adjusting the light on focus.

Presbyopia: It can be defined as the loss of ability of eye to focus on the object. It occurs in old age.

Astigmatism: It is a refractive error in which the eye does not focus light on retina.

Hyperopia: It is also called as farsightedness. Distant objects can be seen clearly but nearby appears blurry.

A flashlight can be made that is powered by the induced current from a magnet moving through a coil of wire. The coil and magnet are inside a plastic tube that can be shaken causing the magnet to move back and forth through the coil. Assume the magnet has a maximum field strength of 0.05 T. Assume that the radius of the coil is 1.5 cm and the magnet is shaken with a frequency of about two shakes per second. Specify the the number of turns necessary to light a standard 1-watt, 3-V flashlight bulb.

Answers

Answer:

n = 4.25 x 10⁴ .

Explanation:

EMF required to be produced = 3 V .

Let n be the required no of turns .

rate of change of flux = n x B x A x f where n is no of turns of coil , B is magnetic field , A is area of coil and f is frequency of change .

B = .05 T , A = π x (.015)² = 7.065 x 10⁻⁴ m² , f = 2

emf induced = rate of change of flux

= n x  .05 T x 7.065 x 10⁻⁴ m² x 2

= .7065 x 10⁴ x n

Given

.7065 x 10⁻⁴ x n  = 3

n = 4.25 x 10⁴ .

If you throw an apple towards the sky why its going up in spite of gravitational pull?

PLS HELP

Answers

Answer:

Force

Explanation:

The Force You Put Behind Said Apple Is Greater Than That Of Gravitational Pull

Example : The More Power You Put behind a basketball the higher the basketball will go

Answer:

This could happen because the net force may be acting on only one side.

Explanation:

A blue whale with a mass of 1.90 X 10^5 kg was caught in 1947. What is the magnitude of the minimum force needed to move the whale along a horizontal ramp if the coefficient of static friction between the ramp's surface and the whale is 0.460?

Answers

The minimum force needed to move the whale along a horizontal ramp, given that the whale has a mass of 1.90×10⁵ Kg is 856520 N

How do I determine the force needed to move the whale?

We'll begin by listing out the given parameters from the question. This is shown below:

Mass of whale (m) = 1.90×10⁵ KgCoefficient of static friction (μ) = 0.460Force needed (F) = ?

To obtain the force needed to move the whale, we shall first obtain the normal reaction. This is shown below:

Mass of whale (m) = 1.90×10⁵ KgAcceleration due to gravity (g) = 9.8 m/s²Normal reaction (N) = ?

N = mg

N = 1.90×10⁵ × 9.8

N = 1862000 N

Finally, we shall determine the force needed. Details below:

Coefficient of static friction (μ) = 0.460Normal reaction (N) = 1862000 NForce needed (F) = ?

F = μN

F = μN

F = 0.460 × 1862000

F = 856520 N

Thus, we can conclude that the force needed is 856520 N

Learn more about force:

https://brainly.com/question/12163222

#SPJ1

Differences between diode and transistor​

Answers

Answer: the diode transforms the alternating current into direct current while the transistor passes the input signals from the low resistance circuit to high resistance circuit.

Explanation:

Periodic motion
This question is about the stretching of springs
The diagram below shows an unblocked spring of length 100 mm
hanging suspended from a clamp. When an object of mass 50g is
hung on the spring, it becomes 180 mm long.
The spring constant K=50N/m
100 mm
50g
1- Calculate x in (mm) then convert it to meter
X is the distance that the spring is stretched from its
equilibrium position.
2- Use Hooke's law to calculate the restoring force of the spring

Answers

Springs are elastic devices used to absorb shock, store energy, and provide support in a variety of applications.

1- The distance the spring is stretched from its equilibrium position is x = 180 - 100 = 80 mm. This can be converted to meters by dividing by 1000, so x = 0.08 m.

2- The restoring force of the spring can be calculated using Hooke's law, which states that F = kx, where F is the restoring force, k is the spring constant, and x is the distance the spring is stretched from its equilibrium position. In this case, F = 50 N/m × 0.08 m = 4 N.

What is Hooke's law?

Hooke's law is a basic law of physics that states that the force applied to a spring is proportional to the amount of displacement (or stretching) of the spring. In other words, the more you stretch a spring, the more force is needed to keep it stretched. This law is expressed mathematically as F = -kx, where F is the force, k is a constant known as the spring constant, and x is the displacement.

To know more about Hooke's law,

https://brainly.com/question/17068281

#SPJ1

examine the following graph. a) What is the amplitude of the oscillation? b) What is the period of the oscillation?​

Answers

Answer:

Explanation:

The amplitude looks like about 0.5

period = 2/3

how much energy is needed to evaporate 5 grams of water?

Answers

Explanation:
For the reaction.......
H
2
O
(
l
)
+
Δ

H
2
O
(
g
)
WHERE BOTH PRODUCT AND REACTANT ARE AT
100


C
,
..........
Δ
H

vaporization
=
40.66

k
J

m
o
l

1
And thus we need to assess the molar quantity of the water vaporized......
Δ
H
rxn
=
5.00

g
18.01

g

m
o
l

1
×
40.66

k
J

m
o
l

1
=11.3 kJ

The energy is needed to evaporate 5 grams of water is 1670 kJ.

What is energy?

The energy is the ability to do work.

Energy required to change the phase of an object is mass times the latent heat of vaporization.

Q = mL

where, latent heat of vaporization L =334J/g

Given is the mass of water m =5g, then the energy needed will be

Q =5 x 334

Q =1670 kJ

Thus, the energy needed to evaporate water is 1670kJ.

Learn more about energy.

https://brainly.com/question/1932868

#SPJ2

you are in the year where the earth has no more land available for houses you decide to build an apartment up and need things to survive in each earths 5 layers (troposphere,stratosphere, mesosphere, thermosphere, exosphere) Question: what things would you need to survive the mesosphere
PLS I RLLY NEED SOME HELP​

Answers

The things would which would be needed to survive the mesosphere include the following below:

Food and waterOxygen supply.

What is a Mesosphere?

This is refereed to as the third layer of the atmosphere which is present above the stratosphere and directly below the thermosphere.

It has a low density of gas and water vapor present in the area which is why it is no place for human life as there is a shortage of oxygen and other gases needed for some biochemical reactions in the ecosystem. This is therefore the reason why things such as food, water and oxygen supply is neeeded tio survive in the mesosphere.

Read more about Mesosphere here https://brainly.com/question/20542996

#SPJ1

19. A pitcher throws a baseball toward a batter at 30m/s. The batter swings his
bat and hits the baseball. The baseball flies away in the opposite direction at a
speed of 35m/s. Is there a transfer of energy in this situation? (SC.7.P.11.4)
a) Yes, because both the bat and the ball are moving after the collision.
b) No, because the ball and the bat only touched for a short time.
c) Yes, because the force from the bat changes the motion of the ball

Answers

A pitcher throws a baseball towards a batter at 30m/s. The batter swings his bat and hits the baseball, then there is a transfer of energy in this situation : c) Yes, because the force from the bat changes the motion of the ball.

How is energy transferred from baseball bat to a baseball?

Although baseball may appear hard and solid, it actually behaves much like a rubber ball. In the fraction of a second that ball collides with the swinging bat, ball compresses as the energy of motion goes into deforming the ball and transforms it into an elastic potential energy.

The collision of baseball with bat is elastic and the collision between baseball and glove is nearly inelastic.

To know more about collision, refer

https://brainly.com/question/7221794

#SPJ1

Corn plants and milkweed plants grow in the same area. Over several years, the milkweed plants have taken over the field and the corn plants no longer have space to grow.

This best demonstrates which type of an interaction between the plants?

cooperation
parasitism
commensalism
competition

Answers

The interaction between the Corn plants and milkweed plants demonstrates as competition.

What is competition in Plants community?

Competition is typically considered to refer to the detrimental consequences that neighbors' presence has on a plant's fitness or growth, typically through lowering the resources available.

In addition to resources, disturbance, herbivory, and mutualisms, competition can be a significant factor in controlling plant populations. The resource involved is depending on the species and the region, as all plants require a few fundamental ingredients.

As corn plants and milkweed plants grow in the same area, the interaction between the Corn plants and  milkweed plants demonstrates competition.

Learn more about competition  here:

https://brainly.com/question/9563763

#SPJ1

A racing car accelerates at the end of the race from a speed of 100
km/h to a speed of 120 km/h in 15 seconds. Find the acceleration
of it in that period of time.

Answers

4/3 m/s ( approximately 1.3333... m/s)

Sarita Has power of 480 watt. Calculate the amount of mass lifted by her up to 10 Metres in 12 SECONDS?​

Answers

Answer:

58.7g  (answer might differ a little if the answer treats g as 10 instead of 9.81ms-2)

Explanation:

First, apply the formula Energy = Power x Time

Power -> 480W (given)

Time -> 12 seconds  (given)

Hence,

Energy = (480 x 12) J  (SI units of energy is in Joules, J)

            = 5760 J

Since Sarita lifts up the mass, the energy we have calculated above is gravitational potential energy.

That means 5760 J of gravitational potential energy.

Recall that another formula for gravitational potential energy (GPE) is

GPE = mgh (where h is the height lifted, mass is the mass and g is the gravitational constant of 9.81ms-2)

h = 10 metres (given)

Therefore,

5760 = m x 9.81 x 10  

98.1m = 5760

m = 58.71559g

Hence, mass lifted is 58.7g (in 3sf)

This theory of motivation focuses on finding the right level of stimulation. An organism tries to find behaviors that actually increase arousal because everything else bores them.
*
2 points
Cognitive Theory
Hierarchy of Needs
Drive-Reduction Model
Optimal Arousal Theory

Answers

Optimal Arousal theory focuses on finding the right level of stimulation.

What is Optimal Arousal theory?

William James (1842–1910), frequently referred to as the father of psychology in the United States, made significant contributions to early studies on motivation.

James proposed a number of instincts that help with survival as the driving forces behind conduct . An instinct is a species-specific pattern of behavior that is not taught, according to biology.

But there was a lot of disagreement over what exactly constitutes instinct among James's contemporaries. James postulated a number of unique human instincts, although many of his contemporaries had different lists.

Therefore, Optimal Arousal theory  focuses on finding the right level of stimulation.

To learn more about arousal theory, refer to the link:

brainly.com/question/29741835

#SPJ1

PLEASE HELP ME URGENT​

Answers

Here's the solution,

A.) calculate work done :

we know,

[tex]weight \: = mass \times acceleration[/tex]

[tex]weight = 10 \times 10[/tex]

[tex]weight = 100 \: Newtons[/tex]

And,

[tex]work \: done = force \times dispacement[/tex]

[tex]work \: done = 100 \: \times \: 20[/tex]

[tex]work \: done = 2000 \: joules[/tex]

B.) find power :

[tex]power = \dfrac{work \: done}{time} [/tex]

[tex] power = \dfrac{2000}{2} [/tex]

[tex]power = 1000 \: watt[/tex]

Answer:

work done=2000J and power=1000w

Explanation:

(a) Work done= Gravitational potential energy

W=mgh

Data,

m=10kg

h=20m

g=10N/kg

W=10kg*10N/kg*20m

W=2000J or 2kJ

(b). power=work done/time

P=2000/2

P=1000w

A satellite’s speed is
5,000 m/s. After 1 min, it is 10,000 m/s.
What is the satellite’s acceleration?

Answers

Acceleration = (change in speed) / (time for the change)

Change in speed = (10,000 m/s) - (5,000 m/s)

Change in speed = 5,000 m/s

Time for the change = 1 minute

Time for the change = 60 sec

Acceleration = (5,000 m/s) / (60 s)

Acceleration =  83-1/3 m/s²

Other Questions
need help with #7 a and b. im in Algebra 1 and this is lesson 5 Exponential Algebra and Functions. Now, you do the math: Tell us if you can afford the apartment using the details below. . Your gross paycheck is $2100 per month. . You're looking at a very small one-bedroom apartment that rents for only $650 per month . The electric bill runs about $60 per month for power. . You'll pay about $10 per month for gas. . An Internet line will cost you $20 per month. . You have to rent a parking space for your old buggy at $20 per month. Can you afford to get this apartment? O Yes. O No. If no, how much can you afford to pay in rent plus housing expenses? $ Submit In natural selection, humans decide which change is favorable or not. True or false 1. Why was the Battle of Gettysburg a significant battle? *1 pointA. It was the largest battle fought on American soil.B. It caused a lot of devastation on the northern manufacturing businesses.C. It boosted Confederate Troops' morale.D.It ended the war.A is correct C is wrong i dont know the other one its either B or D PLS ANSWER ASAP The following reaction occurs in a cars catalytic converter.2NO(g) + 2CO(g) ----> N2(g) + 2CO2(g) Which answer BEST describes the reducing and oxidizing processes in this reaction?a. NO and CO are both reducing agents.b. NO and CO are both oxidizing agents.c. The oxidation state of nitrogen in NO changes from +2 to 0, and the oxidation state of carbon in CO changes from +2 to +4 as the reaction proceeds.d. The oxidation state of nitrogen in NO changes from 0 to +2, and the oxidation state of carbon in CO changes from +4 to +2 as the reaction proceeds. Llamas a tus padres?S, las llamo.S, la llamo.S, les llamo.pls help 10 points ty Two points (2, 10) and (-4,4) lie on aline. What is the y-intercept of thatline? Which type of weathering involves the outer layers of rock peeling off due 1to the rock expanding as it is heated and contracting as it cools? HydrationExfoliationOxidationTree Root Action Unless otherwise posted, the maximum speed limit is ______mph on a two-lane undivided highways and for vehicles towing trailers.rnrn When is Mexican Independence Day?September 16thMay 5thJuly 4thOctober 17th standard equation for hyperbola with vertices (-2, 1), (2, 1) and foci (-3, 1) (3,1)Will give brainliest Yellow light (600 nm) passes through adiffraction grating with d = 2.35 x 10-6 m.What is the angular separation betweenthe second (m = 2) and third (m = 3)maximum? FIND THE SUM OF ALL NATURAL NUMBERS FROM 1 TO 100 (ARITHMETIC PROGRESSION) Baldwin is a salesperson. He sold an oil painting for $386 and earned 18% commission. How much commission did Baldwin earn? I NEED THIS QUICK PLEASE!!!!!!!20 POINTS!!!! The circumference of a circle is 13.3(pi symbol) ih eget is the radius of the circle A)3.9inB)5.75 inC) 6.15 in D)10.1 in Calculate the area of a circle with a radius of 2.3 cm. To ensure the best-quality audio for business phone calls, which of the following is the best choice What is the volume of the rectangular prism? 5/4 5/2 3 que conoces sobre las tcnicas y tecnolgias propias y de la diversidad cultural?