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A rubber ball with a mass of 0.58 kg is released for rest from a height of 8 meters above the ground. Due to the interaction with the ground, each time it bounces it loses some of its total mechanical energy to non conservative forces and it bounces to 71 percent of its height before it hit the ground. After 4 bounces, how much total energy is lost, in joules?
Determine the minimum speed of a proton whose position along the x axis is measured to be x=2.50 or -0.25 pm
a 53 kg sprinter starting from rest runs 55 m in 7.6 s at constant acceleration. what is the magnitude of the
A solid disk of radius R = 11 centimeter lies in the y-z plane with the center at the origin. Write an equation for the surface charge density in terms of the total charge and radius of the disk
A solenoid of radius 2.60 centimeter has 494 turns and a length of 19.8 centimeter. Find the rate at which current must change through it to produce an EMF of 88.6 mV
Suppose the faintest star you can see with a 4-inch telescope has a magnitude of+8.0. What is the magnitude of the faintest star you could see (under the same conditions) with a 20-inch telescope?
A small block with mass m1 rest on a frictionless horizontal tabletop a distance r1 from a hole in the center of the table. A light, stretchless string tied to the small block passes down through the hole, and a larger block with mass m2 is suspen..
A Young's double-slit interference experiment gives bright fringes separated by 2.5 cm on a screen when the experiment is performed in air. What is the new spacing between bright fringes
the period of a pulsating variable star may be estimated by considering the star to be executing radial longitudinal
A uniform electric field of magnitude 297 V/m is directed in the positive x direction. Through what potential difference did the charge move
Take element Z = 15 from the periodic table. Ionize it 14 times so that there is only one electron left orbiting around the nucleus. What is the ground state energy of the electron
Consider the circuit shown in the figure. Note that only two currents are shown. Calculate the emfs (battery voltages) ε1 and ε3.
A simple dc-motor is made up of a single coil rotor placed between two permanent magnets. How many turns should the coil have so that the motor can supply a torque of 0.100 N-m
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