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An astronaut is traveling in a space vehicle that has a speed of 0.480c relative to Earth. The astronaut measures his pulse rate at 76.0 per minute. Signals generated by the astronaut's pulse are radioed to Earth when the vehicle is moving perpendicularly to a line that connects the vehicle with an Earth observer.
(A) What pulse rate does the Earth observer measure?
(B) What would be the pulse rate if the speed of the space vehicle were increased to 0.950c?
A balloon with a radius of 14cm and an electric charge of 3.75x10^-9 C is brought within the electric field of the larger balloon so their centres are 40cm apart. find the magnitude of the electric force exerted by this electric field on the small..
A child on a swing-set swings back and forth. If the length of the supporting cables for the swing is 2.8 m, what is the period of oscillation
a 27.2 g arrow is fired with a velocity of 87.3 m/s from a bow with a mass of 2.45 kg. Find the impulse on the arrow
Consider a 10-kg block resting on a frictionless plane inclined 30 o connected by a rope through a pulley to a 10-kg block hanging free. What is the direction and magnitude of the resulting acceleration of the 2-block system?
An LC circuit consists of a 20 mh inductor and a 0.5 if capacitor.maximum instantaneous current is 0.1 A
What is the electric field strength a point on the axis 5.0 cm from one disk between them.
A small mailbag is released from a helicopter that is descending steadily at 2.04 m/s. (a) After 4.00 s, what is the speed of the mailbag? (b) How far is it below the helicopter? (c) What are your answers to parts (a) and (b) if the helicopter is ..
A defibrillator consists of a 16.7-µF capacitor that is charged to 9.0 kV. how much charge passes through the body tissues
A generator delivers an AC voltage of the form ?v = (64 V) sin (75?t) to a capacitor. The maximum current in the circuit is 1.50 A. Find the rms voltage of the generator
A popular carnival ride consists of a large, round room that rotates fast enough that any person standing against the wall will be stuck there, even as the floor is dropped away from their feet. What is the room's angular speed in rpm
Find out (a) the coefficient of kinetic friction between m2 and the incline, (b) the acceleration of each mass, and (C) the tension in the string.
A copper bar is moved to the right while its axis is maintained in a direction perpendicular to a magnetic field, what is the direction of the magnetic field
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