12,727 Answered Questions for the topic physics

Physics

01/20/23

bounce collision

A 2000-kg car going 30 m/s collides head-on with a 5000-kg truck going at the same speed. If the truck comes to a halt, The car's final velocity is 
Follows • 1
Expert Answers •1
Physics

01/20/23

bounce collision

A tennis ball that has a mass of 0.05 kg is rolling east with a velocity of 10 m/s collides with a baseball that has a mass of 0.1 kg that is rolling west with a velocity of 15 m/s. After the... more
Follows • 1
Expert Answers •1
Physics

01/20/23

stick collision
A 2500 kg van runs into the back of a 700 kg compact car at rest. They move off together at 8 m/s. Assuming no friction with the ground, find the initial speed of the van.  m/s
Follows • 2
Expert Answers •1
Physics

01/19/23

Repelling tape: point charges
Given a small (2cm by 1.2cm), charged piece of tape hanging from a string 40 cm long, how might I be able to estimate its charge? I have considered approaching this string system with an identical... more
Follows • 1
Expert Answers •1
Physics

01/19/23

Tom has his friend Steve give him an initial push uphill. After the initial push, Steve just let's Tom "coast" up the hill
Steve pushes the sled with an initial speed of 3.7 m/s up a 33° incline. The combined mass of Tom and the sled is 19.2 kg, and the coefficient of kinetic friction between the sled and the incline... more
Follows • 2
Expert Answers •1
Physics

01/19/23

A child and sled with a combined mass of 45.0 kg slide down a frictionless hill. If the sled starts from rest and has a speed of 10.0 m/s at the bottom, what is the height of the hill?
Follows • 1
Expert Answers •1
Physics

01/19/23

A 0.280 kg block on a vertical spring with a spring constant of 5.00 ✕ 103 N/m is pushed downward, compressing the spring 0.090 m.

When released, the block leaves the spring and travels upward vertically. How high does it rise above the point of release?
Follows • 1
Expert Answers •1
Physics

01/19/23

A book has a weight of 13 N and is allowed to drop from a height of 19 m.
Calculate the gravitational potential energy before the book is dropped. Calculate the kinetic energy of the book when it has fallen half way to the ground. Calculate the gravitational potential... more
Follows • 1
Expert Answers •1
Physics

01/19/23

A 45 kg woman jumps from a ledge that is 1.2 m above concrete.
(a) What is her speed just before her feet strike the pavement?(b) The only cushion for her feet is the 0.50 cm in the pads of her feet. So, she displaces only 0.50 cm during the landing.... more
Follows • 2
Expert Answers •1
Physics

01/19/23

A 54.0 kg pole vaulter running at 8.3 m/s vaults over the bar. If the vaulter's horizontal component of velocity over the bar is 1.0 m/s and air resistance is disregarded, how high was the jump?
Follows • 2
Expert Answers •1
Physics

01/19/23

A child and sled with a combined mass of 48.0 kg slide down a frictionless hill that is 8.20 m high. If the sled starts from rest, what is its speed at the bottom of the hill?
Follows • 1
Expert Answers •1
Physics

01/19/23

An asteroid of mass 58,000 kg carrying a negative charge of 15E-6 C...
An asteroid of mass 58,000 kg carrying a negative charge of 15E-6 C is 180 m from a second asteroid of mass 52,000 kg carrying a negative charge of 11E-6 C. The magnitude of the net force the... more
Follows • 2
Expert Answers •1
Physics

01/19/23

Three charges are at the vertices of an equilateral triangle of 1 cm each side...
Three charges are at the vertices of an equilateral triangle of 1 cm each side. One charge Q is 6700E-6 C , and all the other two charges are 2000E-6 C each. What is the magnitude of the net... more
Follows • 2
Expert Answers •1
Physics

01/19/23

Two tiny particles having charges +20.0E-6 C and -8.00E-6 C ...
Two tiny particles having charges +20.0E-6 C and -8.00E-6 C are separated by a distance of 20.0 cm. What are the magnitude and direction of electric field midway between these two... more
Follows • 1
Expert Answers •1
Physics

01/19/23

Two 10¢ coins (dimes) carrying identical charges are lying 2.5 m apart on a table....
Two 10¢ coins (dimes) carrying identical charges are lying 2.5 m apart on a table. If each of these coins experiences an electrostatic force of magnitude 2.0 N due to the other coin, how large is... more
Follows • 1
Expert Answers •1
Physics

01/19/23

answer in m/s, A pair of charged conducting plates produces a uniform...
A pair of charged conducting plates produces a uniform field of 12,000 N/C, directed to the right, between the plates. The separation of the plates is 40 mm. An electron is projected from plate A... more
Follows • 2
Expert Answers •1
Physics

01/19/23

Two tiny particles having charges of +5.00E-6 C ...
Two tiny particles having charges of +5.00E-6 C and +7.00E-6 C are placed along the x-axis. The +5.00-µC particle is at x = 0.00 cm, and the other particle is at x = 100.00 cm. Where on the x-axis... more
Follows • 1
Expert Answers •1
Physics

01/19/23

How to find distribution of charge in a conducting shell?
A very long, non-conducting cylinder of radius R1 has a uniform charge density of C1 uC/m3. It is surrounded by a solid, conducting, cylindrical shell with an inner radius of R1 and outer radius of... more
Follows • 1
Expert Answers •1
Physics

01/19/23

Physica question
During the jump, the push-off force and gravity are important. The push-off force is the force of the ground on the volleyball player during the push-off.We neglect air resistance in this exercise.... more
Follows • 1
Expert Answers •1
Physics

01/19/23

physics question
A skier weighing 82.8kg starts from rest and slides down a 32.0m frictionless slope that is inclined at an angle of 15 degrees with the horizontal. Ignore air resistance. Calculate the work done... more
Follows • 1
Expert Answers •1
Physics

01/19/23

physics homework help
A crate of mass 15kg is pulled by a massless rope up a 36.9 degree ramp. The rope passes over an ideal pulley and is attached to a hanging crate of mass 16.40kg. the crate moves 1.54m, starting... more
Follows • 1
Expert Answers •1
Physics

01/18/23

Does a longer wave has a higher frequency?

Follows • 1
Expert Answers •1
Physics Science

01/18/23

Where a proton would experience zero net force
Consider two charges, where one (+3.80 nC) is at the origin and the other (-14.4 nC) is at the position x = 4.51 cm.Find the x-coordinate where a proton would experience zero net force.I am... more
Follows • 1
Expert Answers •1
Physics

01/17/23

A 35 kg trunk is pushed 7.2 m at constant speed up a 30° incline by a force along the plane. The coefficient of kinetic friction between the trunk and the incline is 0.25.
1) Calculate the work done by the weight of the truck2)Calculate the work done by the applied force3) How much energy was dissipated by the frictional force acting on the trunk
Follows • 2
Expert Answers •1
Physics

01/16/23

Finding Final Speed
A 730-kg car stopped at an intersection is rear-ended by a 1720-kg truck moving with a speed of 15.5 m/s.Part A: If the car was in neutral and its brakes were off, so that the collision is... more
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.