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A moving particle encounters an external electric field that decreases its kinetic energy from 9520 eV to 7060 eV as the particle moves from position A to position B. The electric potential at A is -55.0 V, and the electric potential at B is +27.0 V. Determine the charge of the particle. Include the algebraic sign (+ or -) with your answer.
The position of a particle moving along an x axis is given by x = 19t2 - 2.0t3, where x is in meters and t is in seconds. compute the maximum positive coordinate reached by the particle
A playground merry-go-round of radius R = 2 m has a moment of inertia I = 275 kg•m2 and is rotating at 14 rev/min about a frictionless vertical axle.
Outline what you know about the electronic structure of graphene and outline two methods to make carbon nanotubes
An oscillator consists of a block attached to a spring (k = 450.0 N/m). At some time t the position (measured from the system's equilibrium location),velocity, What is the mass of the block
An observer, whose eyes are 1.96 m above the ground, is standing 32.0 m away from a tree. How tall is the tree
A certain substance has a dielectric constant of 2.8 and a dielectric strength of 18.0 MV/m. If it is used as the dielectric material in a parallel-plate capacitor, what minimum area should the plates of the capacitor have to obtain a capacitance of ..
The crankshaft in a race car goes from rest to 3480 rpm in 2.7s. What is the crankshaft's angular acceleration
q1. far in space where gravity is negligible a 450 kg rocket travelling at 77 ms fires its engines. the thrust force as
A grade school student plans to build a 34-power telescope as a science fair project. What focal length is needed for her objective lens
A boy of mass 43.5 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. Find the final velocity of the skateboard
Air at 90 kpa and -10 C enters an adiabatic diffuser steadily with a velocity of 180 m/s and leaves with a low velocity at a pressure of 100 kpa. The exit area of the diffuser is 4 times the inlet area. Determine (a) the exit temperature and (b) the ..
A 45.7-g golf ball is driven from the tee with an initial speed of 50.1 m/s and rises to a height of 23.3 m. determine the kinetic energy of the ball at its highest point
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