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A small metal ball with a mass of 5.95 g and a charge of 5.31 mC is located at a distance of 0.63 m above the ground in an electric field of 21.1 N/C directed to the east. The ball is then released from rest. What is the speed of the ball after it has moved downward a vertical distance of 0.23 m?
A charge of -0.50 µC is situated in an electric field of magnitude 9.0 × 104 N/C, directed horizontally to the right. Find the magnitude and direction of the force on it
Consider an electron in the ground state of the hydrogen atom, separated from the proton by a distance of 0.0529 nm. Viewing the electron as a satellite orbiting the proton in the electrostatic potential, calculate the speed of the electron in its ..
a 8.9 microm thick fine metal foil separates one end of two pieces of optically flat glass. when a monochromatic light
The outer edge of the grooved area of a long-playing record is at a radial distance 35 cm from the center; What is the radial speed of the needle
You are shining ultraviolet light on a gas of an unknown element. You know that an electron starts in a ground state with an energy of -18.20 eV. What is the energy of the first photon emitted
A sled and rider with with a combined mass of 50kg are at the top of a hil a height of 14m above the level ground below, After the push, what is the total mechanical energy of the sled and rider at the top of the hill
A 529-kg satellite is in a circular orbit about Earth at a height above Earth equal to Earth's mean radius, Find the gravitational force acting on it
Miranda, a satellite of Uranus, is shown in part a of the figure below. It can be modeled as a sphere of radius 242 km and mass 6.68 1019 kg. What is his vector impact velocity
A spherical object with a moment of inertia of 0.482mr2 starts from rest rolling down a 3.51-m high incline. what is its linear speed at the bottom of the incline
An 800 g ball moves in a vertical circle on a 1.07-m-long string. If the speed at the top is 5-m/s, after that the speed at the bottom would be 8.18 m/s.
The four strings pass over the bridge of a violin, as shown below. The strings make and angle of 72.0° with the normal to the plane of the instrument on either side of the bridge. determine the force pulling the segment back to its equilibrium posi..
q1. a dentists drill starts from rest. after 3.30 s of constant angular acceleration it turns at a rate of 2.6 104
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