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A spaceship of mass 2.05 x 106 kg is to be accelerated to a speed of 0.720c.
(a) What minimum amount of energy does this acceleration require from the spaceship's fuel, assuming perfect efficiency? (J)
(b) How much fuel would it take to provide this much energy if all the rest energy of the fuel could be transformed to kinetic energy of the spaceship? (kg)
A 1500 kg mass is lowered 200 m and as it is lowered it runs a generator which lights a 100 watt light bulb.how long does the light bulb stay lit
An experimentalist wishes to probe the nucleus which can be approximated as a hard sphere having a radius of 10^-13 cm. How large must the probe beam intesity be if the target consists of 10^10 nuclei
A 2.0 kg object moving with a velocity of +8.0 m/s collides with a 8.0 kg object that is initially at rest. What is the coefficient of restitution for this collision
Briefly and clearly explain the concept of Inertia held by; Galilio, Kepler, and Descartes. Make sure that your description clarify how these postions differ from one another
A bowling ball of mass 7.5 kg and radius 9.0cm rolls without slipping 10 m down a lane at 4.3m/s. calculate the angular velocity of the bowling ball.
A 3.00kg mass is pushed against a horizontal spring of force constant 23.0N/cm on a frictionless air table. What is the greatest acceleration of the mass
A tin can is filled with water to a depth of 38cm . A hole 20cm above the bottom of the can produces a stream of water that is directed at an angle of 30? above the horizontal
The International space station (ISS) orbits the Earth at an altitude of 350km above the surface. it takes 90min to complete one orbit around the Earth. explain why the two clocks fall out of synchronization
A mixture of iron and an unknown material is bombarded with electrons. What is the unknown material (use chemical symbol)
The springs of a 1700-kg car compress 4.90mm when its 63.0-kg driver gets into the driver's seat. If the car goes over a bump
A mechanic can apply a force of 240 N to each side of a tire iron a distance of L = 1.98 m apart. What is the net torque
A certain dog whistle operates at 23.0 kHz while another (brand X) operates at an unknown frequency. estimate the operating frequency of brand X
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