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A spaceship that is 50 m long as measured by its occupants is traveling at a speed of 0.3c relative to Earth. How long is the spaceship as measured by those on Earth?
Weather surveillance satellite is launched into orbit with a period of 1.8 h mass of earth is 5.98 x 10^2 second the radius of earth is 6.37 x 10^3. Find the altitude of orbit
An ac voltage source is connected in series with a1.4-?F capacitor and a 690-? resistor. Using a digital ac voltmeter, the amplitude of the voltage source is measured to be 4.0?V rms, Determine the frequency of the ac voltage source
A speaker generating a tone at 275 Hertz, A person is moving toward the speaker with a speed of 49 meter per second. Obtain the frequency of the tone perceived by person
A certain ideal gas has a molar specific heat at constant volume CV = 7R/5. What is its molar specific heat at constant pressure
Relative to the ground, determine the angle of the velocity vector of the package just before impact.
A block of weight 43.6 N is hanging from a rope. The tension from the rope is pulling upward on the block. The block is accelerating upward at a rate of 1.22 m/s^2. What is the magnitude of the tension in the rope?
A 10.0-kW laser with a beam area of 10.0 cm2 is incident normally on a mirror. Assuming perfect reflection, what is the force due to radiation pressure on the mirror
A photon with energy 0.50 eV is barely capable of causing a photoelectric effect when it strikes a metal plate. Find the speed of the released electron far from the nucleus
In an experiment designed to measure the speed of light, a laser is aimed at a mirror that is 47.0 kmdue north. A detector is placed 120 m due east of the laser. The mirror is to be aligned so that light from the laser refelects intothe detector.
Compare the motion of two objects before a collision with their motion after the collision. You should be able to find a quantity, which will remain unchanged in a collision. Be sure to justify your reasoning.
A 4.0 g bullet is fired into a 0.40 kg block attached to the end of a 0.60 m nonuniform rod of mass 0.50 kg. The block-rod-bullet system then rotates in the plane of the figure about a fixed axis at A.
A baseballs has mass 0.145 kilogram. If the ball remains in contact with the bat for 2 milliseconds, obtain the magnitude of the average force applied by the bat
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