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A 48000-kg space probe is traveling at a speed of 12000 m/s through deep space. Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 160000 N over a distance of 2700 km. What is the final speed of the probe?
What is the thermal kinetic energy in 1 kg of oxygen gas at 20°C, What fraction of this energy is translational
Starting from rest, a 98-kg firefighter slides down a fire pole. The average frictional force exerted on him by the pole has a magnitude of 825 N, How far did he slide down the pole
You've signed up for a trip to Mars. After being cooped up in the tight space capsule for months, you are very excited to finally arrive and take a standing leap straight upward. How high will you jump
Suppose traffic investigators determined from the skid marks that two cars came to rest with a displacement of 9.72m at 72 degrees N of E, and the coefficient of friction was 0.72. The red car had a mass of 1000kg but the blue cars mass was 1300kg..
Two passenger trains A and B, each 240 mlong, pass a 40 m long railroad platform in Winnepeg. The trains are moving in opposite directions at equal speeds of 0.500cwith respect to the ground. Train A is traveling west and alltracks are perfectly stra..
The pilot of the spaceship measures the length of the moving ship as 30 meters. Establish its length as measured by a person on earth.
when builders were constructing a sidewalk they forgot to include an expansion joint between two of the segments l 1.4
A planet orbits the sun with a period of 8 years. How far is the planet from the sun
A ball is thrown horizontally from a 12 m high building with a speed of 8.0 m/s. How far from the base of the building does the ball hit the ground
If a disk rotating at 500 rpm couples to a stationary disk with five times the moment of inertia, what is the angular speed of the combination
A block of unknown mass, m, is brought into the configuration shown. It was measured that upon release the block shot upward a maximum distance of 2m. Calculate the mass of this block? The upper spring has a natural length of 1m, and the lower spr..
A cord of length 1.2 m is fixed at both ends. Its mass per unit length is 1.1 g/m and the tension is 11 N. What is the frequency of the fundamental oscillation
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