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A 6.50 x 104-kg space probe is traveling at a speed of 13000 m/s through deep space. Retrorockets are firedalong the line of motion to reduce the probe's speed. The retrorockets generate a force of 4.50 x105 N over a distance of 2500 km. What is the final speed of the probe?
Two identical spaceships are traveling in the same direction. An observer on Earth measures the first to have speed 0.80c, What is the speed of the second spaceship
A diffraction grating has 4272 lines/cm. Calculate the width of the dark area between the first and second order spectra on a screen 3.3 m away
A 2.0kg wood block is launched up a wooden ramp that is inclined at a 27? angle. What speed does it have when it slides back down to its starting point
Light of wavelength 587.5 nm illuminates a slit of width 0.75 mm. Calculate the width of the central maximum
A refrigerator removes heat from the freezing equipment at the rate of 20kJ and ejects 24 kJ into a room per cycle. How much work is required for each cycle
A 1.15kg block is attached to a spring with spring constant 18.0N/m . While the block is sitting at rest, a student hits it with a hammer, find The amplitude of the subsequent oscillations
Consider a radar system in an air traffic control center that ismonitoring the distance to an approaching airplane. If the airplaneis 3.81 km from the control center, what is the time delay between a transmitted wave pulse and thereturn of the ref..
if the coefficient of kinetic friction between tires and dry pavement is 0.800 what is the shortest distance in which
A bucket filled with dirt of mass 22 kg is suspended by a rope that hangs over a pulley of mass 31kg and radius 0.15 m. everything is at first at rest.
An airplane with a speed of 69.8 m/s is climbing upward at an angle of 40° with respect to the horizontal. Calculate the distance along the ground, measured from a point directly beneath the point of release
A 52% efficient device uses chemical energy to generate 570J J of electric energy. How much chemical energy is used
A 1000 kg aircraft going 25 m/s collides with a 1500 kg aircraft that is parked and they stick together after the collision and are going 10 m/s after the collision
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