Estimate his average power output
During a workout, football players ran up the stadium stairs in 85 . The stairs are 88 long and inclined at an angle of 27. If a player has a mass of 92 , estimate his average power output on the way up. Ignore friction and air resistance.
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A 5.70 g bullet moving at 551 m/s strikes a 730 g wooden block at rest on a frictionless surface. The bullet emerges, traveling in the same direction with its speed reduced to 499 m/s. (a) What is the resulting speed of the block? (b) What is the
If a particular car covers the ?rst half of the track at an average speed of 213 km/h, what minimum average speed must it have in the second half of the event in order to qualify?
When a person is performing intense physical exercise and begins to feel fatigue and a stinging or burning in the muscles, it is most likely due to the muscle's accumulation of what?
A boy makes a pinhole camera out of a cardboard box with the dimensions 10.0 cm x 10.0 cm x 16.0 cm. A pinhole is located in one end, and a film 8.0 cm x 8.0 cm is placed in the other end. How far away from a tree 25.0 m high should the boy place
What are the critical leadership positions for a fast food restaurant chain?what competencies are needed for people to succed in these positions?
A wire .250 m long in a .750 A in a region of uniform magnetic field. The wire is subject to force of 2.50 N when held perpendicular to the direction of the field. What is the magnetude of the magnetic field?
Calculate the circular speed of an object that orbits the Sun at a distance of 3 AU (1 AU = 1.5e+11 meters, the distance between the Earth and the Sun).
A thermos contains 125 cm3 of coffee at 85° C. To cool the coffee, you drop two 13-g ice cubes into the thermos. The ice cubes are initially at 0° C and melt completely. What is the final temperature of the coffee? Treat the coffee as if i
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According to the authors of the RAND study on the separate Space Force, under what circumstances should a Service's space-related unit NOT transfer
Question: According to your reading, President Obama's most substantive legislative achievement was?