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A charge q= 4.0 μC is moved 0.25 meter horizontally from the origin to point P in a region where an electric field is 150 V/M and directed vertically. Find the change in electric potential energy of the charge?
A car of mass 2200 kg collides with a truck of mass 4800 kg, and just after the collision the car and truck slide along, stuck together. find the velocity of the stuck-together car and truck just after the collision
A radar station locates a sinking ship at range 18.1 km and bearing 136° clockwise from north. How far apart are the plane and ship
q1. a ranger in a national park is driving at 52 kmh when a deer jumps onto the road 86 m ahead of the vehicle. after a
A certain freely falling object requires 1.7s to travel the last 37m before it hits the ground. From what height above ground did it fall.
A circuit consists of two 495-k? resistors in series with an ideal 12.0-V battery. Calculate the potential drop across one of the resistors. A voltmeter with internal resistance 22 M? is connected in parallel with one of the two resistors in order ..
(a) If the elevator moves with an upward acceleration a with arrow of magnitude 2.0 m/s2, find the tensions T1 and T2 in the upper and lower strings. T1 = N T2 = N
A string is wound around a metal wheel that is free to spin on a frictionless pivot. A hanging mass is connected to the other end of the string, What is the initial velocity of the hanging mass
Find the de Broglie wavelength of an oxygen molecule of average kinetic energy in air at a temperature of 226.0 K
an object undergoes projectile motion where friction is negligible and the acceleration due to gravity g is constant.
A semi truck is stopped across a road. As a driver approaches at 20 m/s he sounds the horn of his car (f=350 Hz). find the frequency of the horn heard by the truck driver
A boeling mass M and radius R is thrown so that theinstant it touches the floor it is moving horizontally with speedV=5m/s and is not rotating. find the time the ball slides
A 430g football is lying on the ground, then is kicked and is moving at 25.00 m/s. If the period of the impact was 0.001 s, what was the average force on the ball.
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