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An electron has a total energy equal to two times its rest energy.
(a) What is its momentum?
(b) Repeat for a proton.
GeV/c
A weather vane initially at rest has a moment of inertia of 0.103 kg · m2 about its axis of rotation, Find the angular velocity of the weather vane just after it is struck
The tungsten filament in an incandescent light bulb has a resistance of 1.5 ohm when the bulb is not turned on at 20°C. What is the operating temperature of the filament
A fan running on HIGH is switched to LOW and slows down to 83.5rad/s in 1.75s due to a deceleration of 42.0 rad/s/s. Calculate the HIGH speed of the fan
The total mechanical energy of the spacecraft, assume that the gravitational potential energy is zero at an infinite distance from the Earth.
A person with perfect pitch sits on a bus bench listening to the 450{\rm Hz} horn of an approaching car. how fast is the car moving
A wire 83.0 cm long lying along the x axis carries a current of 360.0 mA in the positive x direction, Find the magnitude of the force on the wire
Two shuffleboard disks of equal mass, one orange and the other green, are involved in a perfectly elastic glancing collision. Determine the final speed of the orange disk
A thermodynamic system undergoes a process in which its internal energy increases by 490 J. At the same time, 250J of work is done on the system. Find the energy transferred to or from it by heat?
Bacteria vary somewhat in size, but a diameter of 1.8 m is not unusual. What would be the volume (in cubic centimeters) of such a bacterium
The place you get your hair cut has two nearly parallel mirrors 7.0 apart. As you sit in the chair, your head is 1.5 from the nearer mirror. How far away does the back of your head appear to be
a rifle with a mass of 2.8 kg fired a bullet with a mass of 0.003 kg. the bullet moves with a muzzle velocity of 420 m/s after the rifle is fired
A bungee cord is stretched between two poles 491 meters apart and it has a mass of 775 grams. If the force needed to stretch the bungee cord is 440 N, what is the velocity of a wave on this bungee cord?
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