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The 20-g centrifuge at NASA's Ames Research Center in Mountain View, California, is a horizontal, cylindrical tube 58 ft long. Suppose an astronaut in training sits in a seat at one end, facing the axis of rotation 29.0 ft away. Decide the rotation rate, in revolutions per second, needed to give the astronaut a centripetal acceleration of 20.0g.
two appliances are connected in parallel to a 120-v battery and draw currents i1 5.0 a and i2 3.9 a. if these
the movable mirrror in a michelson interferometer is displaced to give an interferogram with 1000 local maxima. if the
a certain vibrating string on a piano has a length of 74cm and forms a standing wave having two antinodes. a which
A 2.0-kg object moving by a velocity of 5.0 m/s in the positive x direction strikes and sticks to a3.0-kg object moving by a speed of 2.0 m/s in the similar direction. How much kinetic energy is lost in this collision?
a bullet with massnbspm5.21nbspg is moving horizontally with a speednbspv560nbspnbspmswhen it strikes a block of wood
Two ships are 335 m aparts from each other are shooting cannons at each other. Both ships' cannons are 3.0 m above the water line and both have a muzzle velocity (speed of the cannon ball) of 217 m/s.
A 2.05 kg mass is attached to a light cord that is wrapped around a pulley of radius 4.65 cm, which turns with negligible friction. Find the moment of inertia of the pulley
A binary system consists of two stars that revolve in a circular orbit about a center of mass midway between them. This means that the masses of two stars are equal. Suppose the orbital speed of each star is 285 km/s and the orbital period of each..
A series RLC circuit has components with R= 50 ohms, L= .15 Hz, and C= 20 uF. A) What is the current in the circuit, expressed as a percentage of the maximum possible current? B) What is the power delivered to the circuit, expressed as a percentage o..
You are trying to advance your shooting skills by shooting at a can on top of a fence post. You miss the can, and the bullet, moving at 207 m/s, is embedded 1.54 cm into the post when it comes to a stop. If constant acceleration is assumed, how long ..
Assume that the earth has an average surface temperature of29°C and is a perfect emitter of radiation (e = 1). Find the energy per second per square meter
You do 9.5J of work to stretch a spring with k=210N/m, starting with the spring unstretched. How far does the spring stretch
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