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A person can generate about 300 W of power on a treadmill. If the treadmill is inclined at 2% and a70-kg man runs at 3 m/s for 45 min, consider the following.
(a) Calculate the percentage of the power output that goes into heating up his body. Calculate the percentage that keeps him moving on the treadmill. (b) How much water would that heat evaporate? Assume the water starts at body temperature, 37 oC.
Consider the Sun to be at the origin of an xy-coordinate system. What will the asteroid's velocity be at closest approach
Let's say we have a drug Hexadrol. The biological half life is 36 hours. The person is taking 2mg three times a day. Total 6mg per day. How much would be left from the typical initial dose until just before taking the next dose. Decide how much would..
Driving in your car with a constant speed of 12 {rm m}/{rm s}, you encounter a bump in the road that has a circular cross-section. If the radius of curvature of the bump is 35 {rm m}, find out the apparent weight of a 69 person in your car as you ..
If a 1500 kilogram vehicle stopped from an in 5.6 s with an applied force of 5000 Newton, determine how fast was it initially traveling
A charged belt, 43 cm wide, travels at 26 m/s between a source of charge and a sphere. The belt carries charge into the sphere at a rate corresponding to 81 µA. Compute the surface charge density on the belt.
The 200-inch-diameter objective mirror of the reflecting telescope at the Mt. Palomar Observatory has a focal length of 17 . Part A The -number of a mirror is defined exactly the same as the -number of a lens. What is the -number of this mirror?
q1. the active element of a certain laser is made of a glass rod 33.0 cm long and 1.60 cm in diameter. assume the
1 three capacitors 4.0 6.0 and 8.0 microf are connected in series across a 50.0-v battery. find the voltage across the
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = %u221228.0 cm). How far is the object from the converging lens
A 0.015 kg record with a radius of 15 cm rotates with an angular speed of 33(1/3) rpm. Find the angular momentum of the record
A block of wood with volume V floats in waterwith 0.67V submerged.In oil the block floats with 0.85V of its volume submerged. Find the density of the wood. Find the density of the oil.
A fluid flows axially between two concentric circular cylinders. The inner cylinder has a radius of "a" and the outer radius is "b". For fully developed flow determine: The relation between the flow rate and the pressure gradient
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