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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Question: Which statement concerning feedback inhibition is false? Choose one: A. Feedback inhibition is difficult to reverse.
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Most primates have good color vision. According to the video, color vision is particularly important to howler monkeys (genus: Alouatta) because
A wildlife conservation organization introduced a program to protect an endangered bird species by restricting human activity in certain areas
Discuss how agonal changes can affect the postmortem condition of the body. State the order of decomposition of body compounds
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