I need help asap I would be happy if you helped me
assuming air resistance is negligible, how fast would ball be travelling as it hits the floor after free-falling from rest for 5 second​

Answers

Answer 1
vf=gt so 9.8•5=49m/s

Related Questions

If you decrease how much you push or pull on an object what happens to the acceleration experienced by that object?

Answers

Answer:

copy and paste

Explanation: As the power following up on an object increases, the speed of acceleration is increased. As the mass of the article is expanded, the speed increase of the item is diminished.

abebe wants to lift a 10N object from the ground. what is the minimum force he needs to exert​

Answers

Explanation:

object has a mass, but force, newton is Unit of force.

If the value of g is taken as 10, the mass of the object here is only 1 kg. You will need a force of 10N to lift 1kg mass against the gravity ...

Which has more kinetic
energy, a bowling ball or
a baseball rolling on a
table at the same speed?
Why?

Answers

Answer: a bowling ball

Explanation: a baseball doesn’t need as much kinetic energy because it’s smaller

If a bowling ball is rolling at the same speed as a small baseball then since the bowling ball is bigger it has more kinetic energy

Answer: A Bowling Ball

Explanation: A baseball doesn’t require much kinetic energy because it is smaller than a bowling ball and much lighter.

Forces come in pairs. What are these pairs called?

Answers

Answer: Action-Reaction force pairs

Explanation: please make me brainiest thanks

Answer:

"action-reaction force pairs"

Explanation:

...

Two motorcycles travel along a straight road heading due north. At t = 0 motorcycle 1 is at x = 50 m and moves with a constant speed of 6.50 m/s; motorcycle 2 starts from rest at x = 0 and moves with constant acceleration. Motorcycle 2 passes motorcycle 1 at the time t = 10.08.

Part B What is the position of the two motorcycles when motorcycle 2 passes motorcycle 1? Express your answer to three significant figures and include the appropriate units.

Part C What is the acceleration of motorcycle 2? Express your answer to three significant figures and include the appropriate units.​

Answers

Answer:

Vf = 23 m/s

Explanation:

First we need to find the distance covered by the motorcycle 2 when it passes motorcycle 1. Using the uniform speed equation for motorcycle 1:

s₁ = v₁t₁

where,

s₁ = distance covered by motorcycle 1 = ?

v₁ = speed of motorcycle 1 = 6.5 m/s

t₁ = time = 10 s

Therefore,

s₁ = (6.5 m/s)(10 s)

s₁ = 65 m

Now, for the distance covered by motorcycle 2 at the meeting point. Since, the motorcycle started 50 m ahead of motorcycle 2. Therefore,

s₂ = s₁ + 50 m

s₂ = 65 m + 50 m

s₂ = 115 m

Now, using second equation of motion for motorcycle 2:

s₂ = Vi t + (1/2)at²

where,

Vi = initial velocity of motorcycle 2 = 0 m/s

Therefore,

115 m = (0 m/s)(10 s) + (1/2)(a)(10 s)²

a = 230 m/100 s²

a = 2.3 m/s²

Now, using 1st equation of motion:

Vf = Vi + at

Vf = 0 m/s + (2.3 m/s²)(10 s)

Vf = 23 m/s

the motion of the book as you lift it from the table and place it on the shelf

Answers

Answer:

what are you trying to do for this question

Explanation:

Which situation would create a field like the one shown here?

Answers

huh? what situation??

Li Wei loves cardio and finds it very easy to fit into his schedule. Because he knows it is important to diversify his exercise routine, sometimes he runs and other days he rides his bike. What else should Li Wei consider regarding his routine?


OPTIONS:

A.
He should add some strength training.
B.
He needs to add one more form of cardio.
C.
He has too much cardio and should cut half of it.
D.
His program works for him, so he should not change it.

PLEASE NO LINKS

Answers

Answer:

D.

Explanation:

Li Wei loves cardio and finds it very easy to fit into his schedule. Li Wei should consider his routine is his program works for him, so he should not change it. The correct option is D.

What is cardio?

Any form of exercise that raises your heart rate and keeps it there for a long time is considered cardio. As you start to breathe more quickly and deeply, your respiratory system will start to work harder.

The four components of a fitness program are flexibility, cardio, strength, and power.

The physical exercise that increases muscular strength and fitness is referred to as strength.The capacity to produce the most muscle contractions possible during a movement is referred to as power.Cardio refers to the capacity to handle various circumstances of various lengths.Flexibility is the characteristic that is linked to the range of motion offered by a particular joint.

Therefore, the correct option is D. His program works for him, so he should not change it.

To learn more about cardio, refer to the link:

https://brainly.com/question/24985980

#SPJ2

which type of energy is stored in chemical compounds and released in chemical reactions?

Answers

Answer:

potential

Explanation:

Which factor increases as the effiency of a machine increases

Answers

Answer:

1. The efficiency of the induction increases when the mechanical load increases because as the motors load increases, its slip increases, and the rotor speed falls. Since the rotor speed is slower, there is more relative motion between the rotor and the stator magnetic fields in the machine.

Explanation:

what observations about disks of dusty material around young stars suggest that planets may be forming in such disks?

Answers

Planets may be forming from dust disks because these disks are filled with completely empty lanes.

We can arrive at this answer because:

The existence of empty lanes allows the dust disks to transform into many different materials, including new planets.In this case, there is a cooling of the dust disk, which cools more and more over time.This cooling causes all the particles in that disk to clot.Coagulation increases the density of the particles and if they are dense enough they can form escape accretions.

Escape accretions allow for the formation of planetary embryos, which may form planets in the future.

More information:

https://brainly.com/question/12286734?referrer=searchResults

what can be done not to let anyone of the country be hungry and clothless discuss in groups and present your findings in the class​

Answers

...get food to people in need when they need it...

. Sunita is taking a train to Madurai. Her train has stopped at Trichinapally. She is facing the direction the train will be moving in . She can see a train next to her. The train is also going to Madurai and it leaves first. As the other train leaves, it seems to Sunita as if

Answers

The relative motion of the train next to her is the motion of the other train in her rest frame.

As the other train leaves, it seems to Sunita as if her train is moving backwards

Reason:

The motion of the train Sunita is taking is given by the rate of movement of

objects outside the train from the front side of the train towards the back

side of the train, that way she can tell that the train is moving.

The motion of the other train from the rear side of the train from the rear

side of the train to the front side is a reverse motion to what Sunita

observes when the train is moving forward. Therefore, as the other train

leaves, it seems to Sunita as if her train is moving backwards.

Learn more here:

https://brainly.com/question/25100629

A projectile is fired from the ground at a velocity of 30.0 m/s, 35.0 º from the horizontal. What is the maximum height the projectile reaches in the air? How far away from the point it was fired does it hit the ground? What is the time the projectile is in the air?

Answers

Answer:

Vy = V sin theta = 30 * ,574 = 17.2 m/s

t1 = 17.2 / 9.8 = 1.76 sec to reach max height

Max height = 17.2 * 1.76 - 1/2 * 4.9 * 1.76^2 = 15.1 m

H = V t - 1/2 g t^2 = 1.2 * 9.8 * 1.76^2 = 15.1 m

Time to fall from zero speed to ground = rise time = 1.76 sec

Vx = V cos 35 = 24.6 m / sec     horizontal speed

Time in air = 1.76 * 2 = 3.52 sec before returning to ground

S = 24.6 * 3.52 = 86.6 m

WHAT IS THE VOLUME OF A 5.71 G PLASTIC CUBE THAT HAS A DENSITY OF 1.15 G/CM3

Answers

Answer:4.96[tex]cm^{3}[/tex]

Explanation: Density is [tex]\frac{Mass}{Volume}[/tex]

so you are now looking for volume.

Volume= Density x Mass so

Volume = (5.78g) x(1.15g/ [tex]cm^{3} \frac{x}{y}[/tex]) =4.96[tex]cm^{3}[/tex]

Which statement best describes a physical change?
A. Changes can occur to certain chemical properties of the substance, but the overall shape of the substance will remain the same.
B. Changes can occur to certain physical properties of the substance, but the overall shape of the substance will remain the same.
C. Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.
D. Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the same.

Answers

Answer:

c. changes can occur to certain physical properties

Explanation:

got it right on test

Can someone please help me​

Answers

Answer:C (198 seconds)

Explanation: The cyclist makes the first lap in (180.00 - 6.00) = 174.00 seconds. The average time per lap for all three circuits is (600.00 - 6.00) = 594/3 = 198 seconds.

How do I calculate the moment of force? Please answer as soon as possible

Answers

Moment of force = F x d . Here d is the distance from the fixed axis, Moment of force is expressed in newton meter (Nm). Moment of force formula can be applied to calculate the moment of force for balanced as well as unbalanced forces.

solve this question please

Answers

Answer:

[tex]( \nwarrow^{ + }) \sum \: F_{{y_{A}}_{2kg}} = F_{{y_{N_A}}_{2kg}} - m_{{y_{A}}_{2kg}}g \cos( \theta_{{y_{A}}_{2kg}}) = 0 \\ F_{{y_{N_A}}_{2kg}} = m_{{y_{A}}_{2kg}}g \cos( \theta_{{y_{A}}_{2kg}})...(1) \\ ( \nearrow^{ + }) \sum \: F_{{x_{A}}_{2kg}} = F_{{x_{T}}} - m_{{y_{A}}_{2kg}}g \sin( \theta_{{y_{A}}_{2kg}}) -F_{{Fr}_{A2kg}}= m_{{y_{A}}_{2kg}}a...(2) \\ \\ ( \nearrow^{ + }) \sum \: F_{{y_{B}}_{5kg}} = F_{{y_{N_B}}_{2kg}} - m_{{y_{B}}_{5kg}}g \cos( \theta_{{y_{B}}_{5kg}}) = 0 \\ F_{{y_{N_B}}_{5kg}} = m_{{y_{B}}_{5kg}}g \cos( \theta_{{y_{B}}_{5kg}})...(3) \\ ( \searrow^{ + }) \sum \: F_{{x_{B}}_{5kg}} = m_{{y_{B}}_{5kg}}g \sin( \theta_{{y_{B}}_{5kg}})-F_{{x_{T}}} -F_{{Fr}_{B5kg}}= m_{{y_{B}}_{5kg}}a...(4)[/tex]

Explanation:

All you need to do is plug in the values and solve the simultaneous equations to find the acceleration a, and T.

Always draw the free body diagram...

What is the displacement of the object from 2 seconds to 6 seconds
•4m
•8m
•16m
•24m

Answers

Answer:

,24m bolşi

Explanation:

dfgzffdsvh466ggsceaijtgcbnmzxygdcrescdrbniuyrlohahrcwehiim

Answer:

the answer is 16 m

hope this is helpful

Using Newton’s first law of physics, which explains why it is harder to swim in water with a current (like the ocean) than in contained water (like a pool)?
A.
Perpetual motion can only be interrupted by an unbalanced force.
B.
The current will interfere with perpetual motion more than still water.
C.
It takes much more strength to swim if there is a current than in a pool.
D.
Still water is an immovable object, but currents have their own momentum.

Answers

Answer:

It isn't A.

Explanation:

I got it wrong with the answer A.

it is harder to swim in water with a current (like the ocean) than in contained water (like a pool) because Still water is an immovable object, but currents have their own momentum. The correct option is D.

What is Newton's first law of motion?

Newton's first law of motion, also known as the law of inertia, states that "an object at rest will remain at rest, and an object in motion will remain in motion with a constant velocity unless acted upon by an unbalanced force."

This means that an object will continue to move in a straight line at a constant speed unless an unbalanced force acts upon it. In addition, if an object is at rest, it will remain at rest unless acted upon by an unbalanced force.

The law of inertia can be applied to many situations. For example, if a book is sitting on a table, it will remain at rest until a force is applied to it. Similarly, if a ball is rolling on a flat surface, it will continue to roll at a constant speed in a straight line unless a force, such as friction, slows it down or changes its direction.

This law is fundamental to understanding the behavior of objects in motion, and it forms the basis for the other two laws of motion formulated by Sir Isaac Newton.

Here in the Question,

Swimming in a pool versus swimming in the ocean, the difference lies in the presence of a current in the ocean.

The current in the ocean has its own momentum, and when a swimmer enters the water, they are faced with an additional force that they must overcome to move forward. This means that the swimmer must apply more force and use more energy to overcome the force of the current and move forward in the water.

In still water, on the other hand, there is no external force acting on the swimmer, so they only have to overcome the resistance of the water itself to move forward.

Therefore, The correct answer is D i.e Still water is an immovable object, but currents have their own momentum.

To know more about Newton's third law click:

https://brainly.com/question/29768600

#SPJ3

According to the nebular theory, what early event eventually led to the formation of our solar system?​

Answers

Answer:Solar system formed about 4.6 billion year ago, when gravity pulled together low-density cloud of interstellar gas and dust (called a nebula)(movie). The Orion Nebula, an interstellar cloud in which star systems and possibly planets are forming. Initially the cloud was about several light years across.

Explanation:

Habiba and selehadin have measured the voltage across a resistor to be 5.26V and the current flowing through in to be 0.41A they work out the resistance .

habiba says the resistance is 12.8 ohms .selehadin disagrees and says that is 13 ohm .

who is correct?.​

Answers

Considering the definitipn of current, voltage, power, and Ohm's law,

Current

The flow of electricity through an object, such as a wire, is known as current (I). Its unit of measurement is amps (A). So current is a measure of the speed at which the load passes through a given reference point in a specified direction.

Voltage

The conductive force (electrical pressure) behind the flow of a current is known as voltage and is measured in volts (V) (voltage can also be referred to as the potential difference or electromotive force). That is, voltage is a measure of the work required to move a charge from one point to another.

Resistance

Resistance (R) refers to the resistance or opposition that an element has to the passage of electric current. It is represented by the symbol Ω and indicates the resistance that an element offers to the passage of electricity.

This means that the greater the resistance to the passage of current, the lower the intensity or amount of electricity that passes through this conductor.

The resistance that is measured in ohms.

Ohm's law

Ohm's law indicates that the current through a circuit is directly proportional to its voltage or voltage and inversely proportional to the resistance it presents.

Mathematically, Watt's law is expressed:

[tex]I=\frac{V}{R}[/tex]

So if you want to find resistance, the expression for its calculation is:

[tex]R=\frac{V}{I}[/tex]

This case

In this case, you know:

V= 5.26 VI= 0.41 A

Replacing:

[tex]R=\frac{5.26 V}{0.41 A}[/tex]

Solving:

R= 12.8 ohms

Habiba is right. The resistance is 12.8 ohms.

Learn more:

https://brainly.com/question/23205779?referrer=searchResultshttps://brainly.com/question/13485930?referrer=searchResultshttps://brainly.com/question/9813227?referrer=searchResults

identity the organelle that found in a plant cell but not in an animal cell.
a) cell membrane
b) mitochondria
c) Ribosome
d) chloroplast​

Answers

Answer:

Chloroplast

Explanation:

The plant cell has a cell wall, chloroplasts, plastids, and a central vacuole—structures not found in animal cells. Plant cells do not have lysosomes or centrosomes.

Answer:

d

Explanation:

pls mark as brainliest

have a great day

a physics student throws a stone horizontally off a cliff. one second later, he throws a second identical stone in exactly the same way. which of the following statements is true?

Answers

The second stone hits the ground exactly one second after the first.

The distance traveled by each stone down the cliff is calculated using second kinematic equation;

[tex]h = v_0_yt + \frac{1}{2} gt^2[/tex]

where;

t is the time of motion [tex]v_0_y[/tex] is the initial vertical velocity of the stone = 0

[tex]h = \frac{1}{2} gt^2[/tex]

The time taken by the first stone to hit the ground is calculated as;

[tex]t_1 = \sqrt{\frac{2h}{g} }[/tex]

When compared to the first stone, the time taken by the second stone to hit the ground after 1 second it was released is calculated as

[tex]t_2 = \sqrt{\frac{2h}{g} } + 1[/tex]

[tex]t_2 = t_1 + 1[/tex]

Thus, we can conclude that the second stone hits the ground exactly one second after the first.

"Your question is not complete, it seems be missing the following information;"

A. The second stone hits the ground exactly one second after the first.

B. The second stone hits the ground less than one second after the first

C. The second stone hits the ground more than one second after the first.

D. The second stone hits the ground at the same time as the first.

Learn more here:https://brainly.com/question/16793944

a bicyclist travels with an average velocity of 15km/h north, for 20 minutes .what is his displacement ? ​

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

Displacement is equal to ~

[tex]5 \: \: km[/tex]

See the attachment for solution ~

Answer:

It is 24000meter per second

Which of the following is an example of a buoyant force acting on an object?
A. The object remains still despite an applied force.
B. The object travels with straight-line horizontal acceleration.
C. The object floats on top of a fluid.
D. The object travels in uniform circular motion.

Answers

Answer:

option c theobject floats on top of a fluid

would you say the rate if cell growth is increasing or decreasing explain.​

Answers

if you take antibiotics it decreases otherwise it says the same and it increases overtime but not dramatically unless you just took an antibiotic

what is the force on a 976kg vehicle that accelerates at 2.5m/s

Answers

Answer:

2440 N

Explanation:

As,F=m*a.....

From the question we have

force = 976 × 2.5

We have the final answer as

2440 N

What is a similarity between chemical change and chemical properties

Answers

Answer:

How are physical and chemical changes similar and different? (compare and contrast) (Physical and chemical changes are similar because matter experiences a change in state, Physical changes are different because matter remains the same substance, just in a different state, whereas chemical changes change the matter

Answer: In a physical change like melting of ice , energy is given to increase the molecular saperarion between the molecules, leading to liquid water and its physical state also changes but chemically it is still H2O, no change in identity.

During a chemical change mass does not changes but it chemical chane, it do, for ex in rusting of iron, the Fe2O3 cover is comparable to mass of ice if thin sheetvis used for rusting and also in burning of candle which is made of hydrocarbon has its mass lost into air
Other Questions
Which of the following explains why Europeans did not enslave white indentured servants instead of Africans?A. Africans already had a steady supply of slaves that Europeans could employ.B. Indentured servants resisted more than AfricansC. European colonists were concerned about implications this the enslavement of fellow Europeans would have on policies and perceptions back in Europe convert 1 bromopropane to bromoethane. What aspects of government did hammurabi supervise/attend A penguin walks 10 feet in 6 seconds. At this speed how far does he walk in 45 seconds?Explain or show your reasoning. can someone help me do 62 In the late 1800s and early 1900s,what became the biggest concernabout the formation of"monopolies?" Which of these countries is further south?ArgentinaPanamEl Salvador Select ALL the correct answers.Which three pairs of concepts best describe the Roaring 20s? Pls help me with this The narrator in "The Raven"calls the RavenA. Prophet.B. Ghost.C. Omen. Select all that apply.Three steps leading to American involvement in Vietnam included:commitment of support by Eisenhowerthe Gulf of Tonkin resolutionmilitary advisors sent by KennedyAmerican aid to the Vietcong Unusual and Comical is the Kind of stories that her and me like best Which word is used to refer to the history of a particular situation?1.context2.purpose3.content4.point of view Using the slope formula, find the slope of the line through the given points.(12,0) and (4, -2) What is the purpose of the underlined sentence in the passage above?AIt provides an example of an action that is illegal under the Sixth Amendment.BIt provides an example of an action that is protected by the Sixth Amendment.CIt provides a description of a fair, public trial.DIt suggests the Sixth Amendment is no longer necessary. math can you please help me? What make Eukaryotic cells different from Prokaryotic Cells?Group of answer choicesEukaryotic cells have membrane bound organelles and more complex structureEukaryotic cells do not have a nucleus and are unicellularEukaryotic cells all have cell walls and include bacteria and plantsEukaryotic cells are mainly bacteria Adam and Bobby are twins who have the same weight. Adam drops to the ground from a tree at the same time that Bobby begins his descent down a frictionless slide. If they both start at the same height above the ground, how do their kinetic energies compare when they hit the ground please help me im being timed if A (4x, y) and B (2x, 3y) are points on a grid, the coordinates of the midpoint line segment AB are: Li Wei loves cardio and finds it very easy to fit into his schedule. Because he knows it is important to diversify his exercise routine, sometimes he runs and other days he rides his bike. What else should Li Wei consider regarding his routine?OPTIONS:A. He should add some strength training.B. He needs to add one more form of cardio.C. He has too much cardio and should cut half of it.D. His program works for him, so he should not change it.PLEASE NO LINKS Write an equation in slope-intercept form for the line with slope 1/4 and y-intercept -3