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Solve the following problem:
Problem: While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. If a 53-kg person develops a power of 79 W during a race,
Part A: How fast is the person running?
Please explain all work and steps to find how fast is the person running and assume a running step is 1.5 m long.
A 720 nm light bean in air hits the flat surface of a certain plastic and the bean is split into a reflected ray and a refracted ray. what is the index of refraction of the plastic
A 1.50 meter diameter vat of liquid is 2.10 meter deep. The pressure at the bottom of the vat is 1.50 atm. Determine what is the mass of the liquid in the vat
sound exits a diffraction horn loudspeaker through a rectangular opening like a small doorway. a person is sitting at
Two stones are thrown simultaneously, one straight upward from the base of a cliff and the other straight downward from the top of the cliff. Find the location (above the base of the cliff) of the point where the stones cross paths
A machine has an 650 g steel shuttle that is pulled along a square steel rail by an elastic cord (see figure below). The shuttle is released when the elastic cord has 16 N tension at a 45° angle
A spool whose inner core has a radius of 1.00 cm and whose end caps have a radius of 1.50 cm has a string tightly wound around the inner core. What is the speed of the spool's ground-touching point
Two astronauts, one of mass 60 kg and the other 82 kg, are initially at rest in outer space. They then push each other apart. How far apart are they when the lighter astronaut has moved 11 m?
Consider the H beta line of the Balmer series for hydrogen. Calculate the photon energy for this H beta line
A gas at temperature T0 and atmospheric pressure fills a cylinder. The gas is transferred to a new cylinder with two times the volume, Determine the new temperature of the gas
a person is exercising burning 550 calhr. while doing this exercise they breath deeply so the volume they take into and
at a grinding wheel has an angular velocity of 27.0 . it has a constant angular acceleration of 35.0 until a circuit
A scaffold that weighs 400 N supports two painters, one 500 N and the other 400 N. The reading in the left scale is 800 N. What is the reading in the right hand scale
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