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1. A 81kg man climbs a 1000 m high mountain in 8.1 kcal/min. determine the power consumption in watts.
2. A 72kg man climbs a 1192 m high mountain in 1.43 hour and uses 7.6kcal/min. What is the power ouTput in useful work?
State the direction as an angle with respect to the +x axis.
A Histogram shows that the mean of rain in the area has increased over the last 5 years. What is the probability that the mean would be higher this year than in the previous 5.
An indestructible bullet 1.85 cm long is fired straight through a board that is 11.10 cm thick. The bullet strikes board with a speed of 455m/s and emerges with a speed of 279m/s. (To simplify, suppose that the bullet accelerates only while the fr..
A hunter aims directly at a target (on the same level) 140 m away.
A spherical steel ball bearing has a diameter of 2.54 cm at 22 degrees. what is the diameter as its termperature is raised at 88 degrees celcuis.
A 0.100 kg meterstick is supported at its 40 cm mark by a string attached to the ceiling. A 0.700 kg mass hangs vertically from the 5 cm mark.
Find out the tension in the strap, given that the suitcase moves with constant speed and that the coefficient of kinetic friction between the suitcase and the floor is 0.40.
A highly charged piece of metal (with uniform potential throughout) tends to spark at places where the radius of curvature is small, For that amount of charge, what is the potential of the sphere relative to infinity
Determine the magnitude of the emf EMF induced in the loop after exactly time 6.00 s has passed since the circumference of the loop started to reduce.
What would be rockets speed after travelling the distance if it weren't tied down to the spring.
Why is it sometimes better to use a small telescope in orbit around the Earth than it is to use a large telescope on a mountaintop?
what is the net workdone on the weights.A child slides down a hill on a toboggan with an acceleration of 1.8 m/s2. If she starts at rest, how far has she traveled after following lengths of time.
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