A boy cycles continuously through a distance of 1.0km in 5mins Calculate the live range speed?​

Answer:

true

Explanation:

By adding a thin layer of oil or even water between two objects, you convert the sliding friction to fluid friction.

The negative sign of the force implies that it is in the opposite direction of other force to be in equilibrium.

The force of attraction or repulsion occurring between two charged particles is known as electrostatic force. It is also known as Coulomb's force.

Here,

The three point charges are placed rectilinearly at equal distances of 20m apart. Thus they can be shown as an equilateral triangle of side 20 mm and the three point charges are placed at its corners.

So, when the electrostatic forces between the point charges are calculated, the force exerted by A on B is -135 N.

The negative sign of the force implies that it is opposite to the direction of the rest of force. That means the force exerted by A on B  and the remaining resultant forces must be equal and opposite in direction. This is to attain equilibrium of forces.

Hence,

The negative sign of the force implies that it is in the opposite direction of other force to be in equilibrium.

To learn more about electrostatic forces, click:

https://brainly.com/question/9774180

#SPJ9

The length and orientation of the road in a frame of reference that is moving with the given velocity  in a direction making an angle of 30 degrees with the road is calculated to be 2.641 meters and  16.83 degrees respectively.

Let's first calculate the velocity of the road in the frame of reference that is moving with a velocity of 0.6c. We can use the velocity addition formula to calculate this:

v' = (v - u) / (1 - uv/c²)

where

v = velocity of the road

u = velocity of the frame of reference = 0.6c

c = speed of light

Since the road is at rest in its own frame of reference, v = 0. Substituting the values, we get:

v' = (-0.6c) / (1 - 0.6c × 0 / c²)

v' = -0.8824c

The negative sign indicates that the road appears to be moving in the opposite direction in the moving frame of reference.

Now, let's calculate the length of the road in the moving frame of reference. We can use the length contraction formula to calculate this:

L' = L × √(1 - v'²/c²)

where

L = length of the road

v' = velocity of the road in the moving frame of reference

Substituting the values, we get:

L' = 5 × √(1 - (-0.8824c)²/c²)

L' = 2.641 meters

Therefore, the length of the road in the moving frame of reference is 2.641 meters.

Finally, let's calculate the orientation of the road in the moving frame of reference. We are given that the direction of the velocity of the frame of reference makes an angle of 30 degrees with the road. We can use the following formula to calculate the angle between the road and the velocity of the frame of reference in the moving frame of reference:

tan(e') = (tan(e) - u/c) / (1 - u×tan(e)/c)

where

e = angle between the road and the velocity of the frame of reference

u = velocity of the frame of reference = 0.6c

e' = angle between the road and the velocity of the frame of reference in the moving frame of reference

Substituting the values, we get:

tan(e') = (tan(30) - 0.6c/c) / (1 - 0.6c×tan(30)/c)

tan(e') = 0.294

Taking the inverse tangent, we get:

e' = 16.83 degrees

Therefore, the orientation of the road in the moving frame of reference is 16.83 degrees and the length of the road in the moving frame of reference is 2.641 meters.

Learn more about frame of reference :

https://brainly.com/question/12222532

#SPJ4

The complete question is :

Given a road of length 5 meters, calculate the length and orientation of the road in a frame of reference that is moving with a velocity of 0.6c in a direction making an angle of 30 degrees with the road.

The earth quakes are produced due to the sudden movements of tectonic plates in the earth's crust. The earthquake is one of the major natural disasters.

An earthquake is defined as the shaking of the surface of the earth because of the sudden release of energy in the earth's crust. The waves created during the earthquake are called seismic waves.

The Qinghai earthquake was one of the severe earthquake which occurred on April 14, 2010 in the isolated southern Yushu Tibetan area in  Qinghai province, which is in china on the northeastern portion of the plateau of Tibet.

Many peoples were killed and damaged many belongings also.

To know more about earthquake, visit;

https://brainly.com/question/856294

#SPJ9

The apparent weight of the pilot at the lowest point of the pullout 1040 N.

The centripetal force, F = mv²/r, where m is the mass of the pilot, v is her speed, and r is the radius of the circle. At the lowest point of the pullout, the radius of the circle is equal to the distance from the center of the circle to the point where the plane changes direction (i.e., the height above the ground).

Since the plane is diving vertically, the initial speed is, v₀ = √(2gh), where h is the initial height of the plane above the ground, and g is the acceleration due to gravity. At the lowest point of the pullout, all of the potential energy that the plane had at the start of the dive is converted into kinetic energy. Therefore, the speed, v = √(2gh).

Substituting the expressions for v and r into the expression for the centripetal force,

F = m * (2gh) / (2h) = mg

Therefore, the apparent weight of the pilot at the lowest point of the pullout is twice her actual weight,

2 * (53.0 kg * 9.81 m/s²) = 1040 N

To know more about apparent weight, here

brainly.com/question/14323035

#SPJ4

Answer:

V = sqrt(2gh)

V = sqrt(2 * 9.8 * 10)

V = sqrt (196)

V = 14 m/s

Answer:

V = sqrt(2gh)

V= sqrt(29.8 10)

V = sqrt (196)

V=14 m/s

For instance, someone travelling at an average speed of 40 miles divided by 40 minutes, or 1 mile per minute, is travelling 20 miles north and then 20 miles south (60 mph).

Calculating average speed involves dividing the whole distance travelled by the total time it took to cover that distance. Speed is the rate of movement of something at a specific time. Average speed refers to the average speed during the course of a journey.

Speed equals distance x time is the speed equation. The meter per second, abbreviated as m/s or ms-1, is the SI unit of speed.

To learn more about average speed visit:

brainly.com/question/12322912

#SPJ1

The acceleration of the skydiver is approximately +5.4 m/s².

We can use Newton's second law of motion, which states that the net force acting on an object is equal to its mass times its acceleration:

Net force = mass x acceleration

In this case, the net force is the force due to gravity minus the force due to air resistance:

Net force = force due to gravity - force due to air resistance

So we have:

(700 N) - (322 N) = (70 kg) x acceleration

Simplifying this equation, we get:

378 N = (70 kg) x acceleration

To find the acceleration, we can divide both sides by the mass:

acceleration = 378 N / (70 kg)

acceleration = 5.4 m/s²

Learn more about acceleration here: https://brainly.com/question/14344386

#SPJ1

Answer:

Different types of waves on the electromagnetic spectrum share the same speed, which is the speed of light in a vacuum, approximately 299,792,458 meters per second (or about 186,282 miles per second). All types of electromagnetic waves, including radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays, and gamma rays, travel at the same speed in a vacuum. This is one of the fundamental properties of the electromagnetic spectrum.

Answer:

(b) the speed of light depends on the index of refraction of the medium thru which it is traveling - different colors have different indices of refraction and are refracted at different angles

Explanation:

itd D because a and b both have something to represent the answer

Just the phone and battery should be where they should be on the photographs.

The term "matter" refers to a substance that is composed of several kinds of particles, occupies space, and has inertia. The numerous kinds of particles each have a unique mass and size, according to the fundamentals of current physics. The electron, proton, and neutron are three of the most well-known instances of material particles.

All objects with mass and volume are considered to be matter (takes up space). It is usually pretty easy to show that the everyday items we interact with have mass and occupy space.

To know more about Matter visit:

https://brainly.com/question/28945834

#SPJ1

The approximate TOD of the victim is Maybe around 4:30 pm.

The liver temperature can provide a more accurate representation of the genuine core body temperature, hence it is ideal to take the temperature either rectally or by monitoring the liver temperature.To do this, a tiny incision must be made in the right upper belly, and the thermometer must be inserted into the liver tissue.

This stiffening process, known as rigor mortis, occurs at a fairly known time, making it possible to predict when someone will pass away.In overall: If the body is warm and there is no rigidity, the time of death was less than three hours ago.If the body is stiff and warm, death happened 3 to 8 hours earlier.

To Know more about victim visit:

https://brainly.com/question/10999364

#SPJ1

Answer:

Yes, they never break trust. The answer is water. It falls in the waterfall but never breaks, and it breaks in the surf from the incoming tide, but never falls.

Explanation:

The work required to bring the third charge from very far away to the point P is approximately 36 millijoules (to two significant figures). The units are joules (J).

To calculate the work required to bring the third charge q3 from very far away to the point P, we need to know the electric potential at point P due to the other two charges q1 and q2. The electric potential at point P is given by:

V = kq1/r1 + kq2/r2

U = q3 V

where q3 is the charge of the third charge.

r1 = 0.1 m

r2 = 0.2 m

q1 = -2 μC = -2 × 10^-6 C

q2 = 3 μC = 3 × 10^-6 C

Substituting these values into the electric potential formula, we get:

V = kq1/r1 + kq2/r2

V = (9 × 10^9 N m^2/C^2) × [(-2 × 10^-6 C)/0.1 m + (3 × 10^-6 C)/0.2 m]

V ≈ 9000 V

final = q3 V

final = (4 μC) × (9000 V)

final = 36000 μJ

final = 36 mJ

To know more about joules:

https://brainly.com/question/12401588

#SPJ4

Answer: It detects any waves or any substance.

Explanation: Don't really know how to explain it but it detects specific stuff on every material, like a demand for Example, if it is real then it could scratch glass but glass couldn't scratch it.

The gravitational force between them and the orbital speed of Jupiter is 4.385×10^23 N and 13.081 km/s.

Mass of Jupiter, m = 2 × 10^27 kg

Mass of Sun, M = 2 × 10^30 kg

the radius of Jupiter's orbit, R = 7.8 × 10^11 m

=> distance b/w Sun and Jupiter = radius of the Jupiter's orbit = R

Gravitational force b/w them = GMm/(R^2)

= (6.67 × 10^-11)×(2 × 10^30)×( 2 × 10^27) / (7.8 × 10^11)^2

= 4.385×10^23 N

since, centripetal force = centrifugal force

=> F = GMm/(R^2) = (mv^2)/R

=> v = √(GM/R) = 13.081 km/s

Gravitational force is a fundamental force in physics that governs the interactions between massive objects. According to Newton's law of gravitation, every object in the universe exerts a gravitational force on every other object, with the strength of the force proportional to the product of their masses and inversely proportional to the square of the distance between them.

The gravitational force between two objects causes them to attract each other, with the direction of the force being along the line connecting the centers of the objects. The gravitational force is always attractive and never repulsive, and it is responsible for many phenomena in the universe, from the orbits of planets around the Sun to the motion of stars within galaxies.

To learn more about Gravitational force visit here:

brainly.com/question/11944606

#SPJ4

Complete Question:

The planet Jupiter of mass 2 x 1027Kg revolves around the sun of mass 2 x 10"kg in a circular orbit of radius 7.8 x 10''m. Calculate the gravitational force between them and the orbital speed of Jupiter.​

Answer:

4000 km

Explanation:

Answer: 1,6 KM

Explanation:

To determine the distance from the epicenter of an earthquake if P waves take 12 minutes to arrive, we need to use the formula:

distance = (time * 8) / 60

where "time" is the time it takes for the P waves to arrive in minutes, and "distance" is the distance from the epicenter in kilometers.

Substituting the given value of time, we get:

distance = (12 * 8) / 60

distance = 1.6 kilometers

Therefore, the distance from the epicenter of the earthquake is approximately 1.6 kilometers.

The words that fill the blanks are;

increases

decreases

Force and acceleration are directly proportional to each other, according to Newton's second law of motion. The law states that the acceleration of an object is directly proportional to the force applied to it, and inversely proportional to its mass. Mathematically, this can be expressed as:

F = ma

where F is the force applied to an object, m is its mass, and a is its resulting acceleration.

Learn more about force:https://brainly.com/question/13191643

#SPJ1

The expression for the acceleration is the same in both cases, indicating that the moment of inertia of the pulley does not affect the acceleration of the masses.

An Atwood's machine consists of two masses connected by a rope that passes over a pulley. The acceleration of the masses can be found by applying Newton's second law to each mass separately. The force due to gravity and the tension in the rope are the only forces acting on the masses.

If we consider the moment of inertia of the pulley, the acceleration can be found using the net forces on each mass. However, if we ignore the moment of inertia of the pulley, the acceleration can be found using the net force on the system. However, the expression for the acceleration is the same in both cases, meaning that the moment of inertia of the pulley does not affect the acceleration of the masses.

To know more about Atwood's machine, here

brainly.com/question/28833047

#SPJ4

The net work done during this process is -992 J. The negative sign indicates that work was done on the system, i.e. the gas lost energy to the surroundings.

W1 = (1 mol)(8.314 J/mol·K)(270 K) ln(3.5 L / 1 L) ≈ 5978 J

Next, the temperature is increased at constant volume, so no work is done:

W2 = 0

Then, the gas is compressed isothermally at 300 K to its initial volume, so we can use the same equation as before to calculate the work done:

W3 = (1 mol)(8.314 J/mol·K)(300 K) ln(1 L / 3.5 L) ≈ -6969 J

Finally, the gas is returned to its initial state, so the work done is:

W4 = 0

Therefore, the net work done is:

Wnet = W1 + W2 + W3 + W4 = 5978 J + 0 J - 6969 J + 0 J = -992 J

work done is defined as the product of force and displacement, where force is the amount of energy required to move an object and displacement is the distance over which the object is moved. Mathematically, work done is expressed as W = F x d, where W is the work done, F is the force applied and d is the displacement.

Work done can be positive, negative, or zero depending on the direction of force and displacement. When the force is in the same direction as displacement, work done is positive, when the force is in the opposite direction to displacement, work done is negative, and when the force and displacement are perpendicular, work done is zero.

To learn more about Work done visit here:

brainly.com/question/13662169

#SPJ4

Answer:

The skateboarder has 2400 J of kinetic energy. We can use the formula for kinetic energy to find the speed:

KE = 1/2 mv^2

KE = 1/2 (68 kg) (v^2)

2400 J = 1/2 (68 kg) (v^2)

2400 J = 34 kg v^2

2400 J / 34 kg = v^2

70.59 m/s = v^2

If the final potential difference across the 69micro -f then capacitor is 40Mf

We cannot expect simple energy conservation to hold because energy is presumably dissipated as heat in the connection wires or as radio waves while the charge oscillates during the system "settling down" to its final state (40V across the parallel pair of capacitors C and 60 F).

We anticipate that charge will be conserved. Thus, if Q is the initial charge stored on C and q 1 and q2 are the charges on the parallel pair after "settling down," then -

Q= q1+ q2

C(100V) = C(40V) + 60mf(40V)

C= 40Mf

An electrical component that stores electrical energy in an electric field is known as a capacitor. It is made up of two conductive plates separated by a nonconductive material known as a dielectric.

learn more about capacitor here:

https://brainly.com/question/17176550

#SPJ4

Option 3 shows the shape of the resultant pulse when the centers of the

pulses, points P and Q, coincide.

What is a pulse of a wave?

A pulse of a wave is a single disturbance or vibration that travels through a medium, carrying energy without permanently displacing the medium. It is a type of wave that is characterized by a single disturbance or oscillation that travels through a medium, such as air or water, and creates a temporary disturbance in the medium's equilibrium. A wave pulse can be described by its amplitude (the height of the disturbance), its wavelength (the distance between successive peaks or troughs), and its speed (the rate at which the disturbance travels through the medium).

Q's crest amplitude = Q's Trough amplitude= P's Crest amplitude

and P's wavelength = Q's wavelength

then when you lay them on top of each other

Q's crest combines in phase with the first half of P's crest and they double where as

Q's trough combines out of phase with the second half of P's crest and they negate each other

resulting in something that looks like choice 3

Therefore, Option 3 is the correct answer.

To learn more about wave pulse the link

https://brainly.com/question/30631912

#SPJ1

The temperature of the laser rod increases by 21.33 degrees Celsius each minute due to the failure of the cooling system.

When heat is transferred to an object, its temperature increases. The amount of temperature increase depends on the amount of heat transferred, the mass of the object, and its specific heat.

To calculate the temperature increase of the laser rod, we can use the formula:

ΔT = Q / (m * c)

where ΔT is the change in temperature, Q is the heat absorbed, m is the mass of the laser rod, and c is the specific heat of the material.

In our case, the laser rod is a closed system, and the heat added is 64 kcal per minute.

Substituting the given values, we get:

ΔT = 64 kcal / (5 kg * 0.3 kcal/kg•Co)

ΔT = 21.33 Co

Read more about Thermodynamics:

https://brainly.com/question/11211088

#SPJ4

Using the model, the absolute maximum value of acceleration is 21.698 m/s² and the absolute minimum value of acceleration is 14.597 m/s² between liftoff and the jettisoning of the solid rocket boosters.

Solid rocket boosters (SRBs) are large rocket engines used to provide the majority of the thrust required for a spacecraft during its initial launch phase. They are called “solid” because they contain solid propellant, that burns at a controlled rate to produce thrust.

In the given problem:

We know,

v(t)=0.001500000t³-0.08t²+16.02t-2.37

Acceleration will be derivative of velocity

Hence, a=dv/dt=0.0045t2-0.16t+16.02

at t=0,a=16.02 m/s²

Now the maximum acceleration will be at endpoint i.e., t=57.5s

so at t=57.5 s, a=21.698 m/s²

For minimum acceleration, a'(t)= 0.009t-0.16<0

t<17.77

Minimum acceleration will be at t=17.77 s, a(t)=14.597 m/s²

Learn more about solid rocket boosters, here:

https://brainly.com/question/6334312

#SPJ1

The question is incomplete, but most probably the complete question is,

A University of Rochester student decided to depart from Earth after his graduation to find work on Mars. Before building a shuttle, he conducted careful calculations. A model for the velocity of the shuttle, from liftoff at t = 0 s until the solid rocket boosters were jettisoned at t = 57.5 s, is given by (in feet per second). Using this model, estimate:

the absolute maximum value = ??

and absolute minimum value - ??

of the ACCELERATION of the shuttle between liftoff and the jettisoning of the boosters.

L/M = 1000 L Sun/MSun Based on the spectral category and luminosity group of a star, a classification is made. Cepheids are an illustration of a variable star.

A)M≈1MSun

b)L≈1000LSun

c)1000

D) Wrong; every main-sequence star upon that HR diagram turns helium into hydrogen. T 10 7 years

SUPER HUGE AND RED GIANT:

The H-R diagram's upper right corner may be located there. It is incredibly cool but very bright.

THE SUN, FOR EXAMPLE, IS IN THE Major, AS ARE THE HEATEST AND LIGHTEST STARS IN The GALAXY.

Very hot and faint White Dwarfs with a radius that isn't significantly greater then Earth.

Stars on the lower left of both the H-R diagram have smaller radii and higher temperatures than low-luminosity main-sequence stars.

Main-sequence stars with a lengthy lifetime are much less brilliant, colder, smaller, and far less massive than main-sequence stars having short lifetimes.

To know more about variable click here

brainly.com/question/21442369

#SPJ1

                                         ''Complete question"

What is the approximate mass of the most massive stars left on the main sequence of this star cluster?

a) M≈0.1M Sun

b) M≈1 M Sun

c) M≈10M Sun

d) M≈100M Sun

Part B

What is the luminosity of the most luminous stars in the cluster?

a) L≈ 1LSun

b) L≈ 10LSun

c) L≈ 100LSun

d) L≈ 1000LSun

Part C

Compute the ratio between the luminosity from part B to the mass from part A. How does that ratio compare with the Sun's ratio of luminosity to mass?

L / M = __ LSun /MSun

Part D

Estimate the maximum amount of time these very luminous stars can last as red giants from your answer to part C.

a) t≈ 10^5 years

b) t≈ 10^7 years

c) t≈ 10^9 years

d) t≈ 10^11 years

The amount of work that Joe does to clear one path down his driveway is 1260 Nm.

The amount of work that Joe does to clear one path down his driveway is given by the product of the force he applies and the distance he moves the shovel:

Work = Force x Distance

In this case, the force is 10 N and the distance is the length of the driveway, which is 126 meters. Therefore:

Work = 10 N x 126 m = 1260 Nm

So Joe does 1260 Nm of work to clear one path down his driveway.

Learn more about work done here: https://brainly.com/question/8119756

#SPJ1

The voltage drop across the tungsten filament in a 100W light bulb is 120 volts.

We can use Ohm's Law to find the voltage drop across the tungsten filament:

V = I * R

Where

Substituting the given values, we get:

V = (0.833 A) * (144 Ω)

V = 120 V

Therefore, the voltage drop across the tungsten filament in a 100W light bulb is 120 volts.

Learn more about ohm's Law here : brainly.com/question/231741

#SPJ1