A particle with mass m = 1.67 x 10 -27 kg is being accelerated along a straight line at 3.6 x 10 15 m/s 2 . If the particle has initial speed of 2.4 x 10 7 m/s and travels a distance of 2.8 cm,...

A particle with mass m = 1.67 x 10 -27 kg is being accelerated along a straight line at 3.6 x 10 15 m/s 2 . If the particle has initial speed of 2.4 x 10 7 m/s and travels a distance of 2.8 cm,...

I posted this question yesterday, but there is another part of the problem I don't understand A 0.76 kg fireworks rocket moving at a speed of 32 m/s breaks into two pieces as the result...

In elastic head-on collisions, the relative speed of the two objects before the collision is equal to the negative of their relative speed after the collision, no matter what their masses are. Prove...

It’s a kinetic energy sun with formula 1/2mv2

A 59 kg pole-vaulter is trying to jump over a 5.06 m bar. By pulling and projecting themselves off the pole, the athlete can add 15% to their maximum kinetic energy and vault higher. Assume that the...

An asteroid with a mass of 5.0 x 105 kg collides with the Earth and slides horizontally along the ground without bouncing (not actually possible but just pretend). The velocity of the asteroid before...

A 45 kg student runs with a speed of 2.0 m/s off a horizontal ledge that is 5.0 above a swimming pool. Calculate the vertical speed of the student when she hits the water. ... Energy...

In an attempt for a physics teacher to explain the conservation of energy to a student, the teacher goes down a 6.0 m high sliding board. At the bottom, he only travels 7.0 m/s. If the mass of the...

A small ball has a mass of 5.0 x 10-8 kg and a charge of 0.0 x 10-5 C. It enters a box with an initial speed of 1.2 x 104 m/s. The point where the charge leaves the box is at a voltage 350 kV higher...

Postulates of the Kinetic-Molecular Theory of Gases: 1. Gas particles are extremely small and have relatively large distances between them. 2. Gas particles act independently of...

Two charges q1 = −3.20 nC and q2 = +8.15 nC are at a distance of 1.28 µm from each other. q1 is fixed at its location while q2 is released from rest. (a) What is the kinetic energy of...

A small car of mass 500kg is travelling at 120km/h when it hits stationary truck (of 1.5 tonne mass) head on. The small car rebounds and travels in the opposite direction at 40km/h. The collision...

Dart hits wheel. In terms of m, M, v0, and R (of wheel), find: A) angular speed of wheel B) ratios of initial and final kinetic energies

A 1.00-kg block is pushed along a rough horizontal floor with a horizontal force of 5.00 N for a distance of 5.00 m. If the block is moving at a constant velocity of 4.00 m/s, find... The...

A girl on a playground swing starts from rest at an angle θ=34.2 from the vertical. The chains have length L=6.8 meters. Find her speed as she passes through the bottom of the swing. Assume no pushing,...

A wagon moving at 25 km/h has a kinetic energy of 6000 kg•km2/h2. What is the mass of the wagon

Photon is incident have frequency 1×?10?^14 sec^(-1). Threshold frequency of metal is 5 × ?10?^13 sec^(-1).find kinetic energy of electron 2.electron in hydrogen atom jump from excited state n...

Ball A of mass 5 kilograms moving at 20 meters per second collides with ball B of unknown mass moving at 10 meters per second in the same direction. A car traveling at 20 m/s has 1,000...

Calculate the rest energy and the kinetic energy of: a) A 100g ball travelling with the speed of 100m/s b) An electron travelling at a speed of 0.999c. Which one has greater...

A diagram shows a moving 5.00-kilogram cart at the foot of a hill 10.0 meters high. What is the minimum kinetic energy needed for the cart to move from its current position to reach the top of the...