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The starship Enterprise speeds by you at a speed of 0.960c. It is measure in your frame to be 100 m long.
a) What will be it's length at rest?
b) How many seconds would you say elapsed on Data's watch with 100.0s passed on yours?
c) How fast did you appear to be traveling according to Data?
d) How many seconds would he say elapsed on your watch when he saw 100.0s passed on his watch?
A sinusoidal traveling water wave has a wavelength of 25 cm and a frequency of 0.60 Hz. What is the phase speed of this wave
On a cold day, 25000 J of heat leaks out of a house. The inside temperature is 22 °C, What is the increase in the entropy of the universe that this heat loss produces
A 10 cm long solenoid with 222 turns and radius R = 3.00 cm has a current flowing through it of Io = 200 mA. What is the magnetic field strength inside the solenoid
When the power is turned off on a turntable spinning at 67.0 rpm, you find that it takes 13.0 revolutions for it to stop while slowing down at a uniform rate. What is the angular acceleration (in rad/s^2), of this turntable
A small ball of 53 grams is suspended from a string of length 86 centimeters and whirled in a circle lying in the horizontal plane. If the string makes and angle of 31 degrees with the vertical, find out the centripetal force experienced by the ball...
A 3 meter diamter steel excess hatch is located 20 meter (center of gravity) below the water level of an intake structure. What is the total force on the hatch
A ball is launched at 4.43 m/s at an angle of 66 degrees above teh horizontal and the time of flight is 0.84 s, then what is the maximum height of the ball
What is the horizontal distance x to the base of the wall supporting the mirror of the near point on the floor that can be seen reflected in the mirror . What is the speed of the third fragment? Overlook effects due to gravity.
A turntable that spins at a constant 80 rpm takes 3.70s to reach this angular speed after it is turned on. Find its angular acceleration (in rad/s^{2}), suppose it to be constant, and the number of degrees it turns through while speeding up.
You're standing on a carousel 1.34 m from its axis of rotation. What minimum distance would you need to walk to arrive at a position where your contribution to the total moment of inertia has doubled?
A 59kg woman trips while walking down the street. She stumbles forward and falls onto her outstretched right hand. At the instant her hand contacts the ground her whole body is moving downward at a velocity of 9m/s and has a downward acceleration ..
A 600 turn solenoid, 25 cm long, has a diameter of 2.3 cm. A 10 turn coil is wound tightly around the center of the solenoid. If the current in the solenoid increases uniformly from 0 to 5.0 A in 0.55 s, what would be the induced emf magnitude in t..
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