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A) How high can a car coast up (engine disengaged) if friction is negligible and its inital speed is 96.0 km/h?
B) If, in actuality, a 750 kg car with an initial speed of 96.0 km/h is observed to coast up a hill to a height of 17.0 m above its starting point, how much thermal energy was generated by friction?
C) What is the average force of friction if the hill has a slope of 2.5 degrees above the horizontal.
Consider two identical 25-micro-coulomb point charges, each of 18 mg mass. Let them initially be at rest, 80 cm apart. How fast (in m/s) will each charge be moving when the charges are very far apart
One morning in New York City at 9:AM, Larry looks south and sees the moon is due south. Suppose Curly were to look at the Earth again 7 days later. What would the apparent shape of the Earth be
A cylindrical storage tank has a radius of 1.34 m. When filled to a height of 3.74 m, What is the density of the solvent
Three applied forces, F1= 20.0 N, F2= 40.0 N and F3= 10.0 N act on an object with a mass of 2.00 kg which can move along an inclined plane. What is the amount of work done by the gravitational force as the object moves up the inclined plane
Two cylindrical bars, each with diameter of 2.30 cm, are welded together end to end. compute the resistance between the ends of the welded bar
Is the collision completely elastic
A 1.5kg- block of ice is initially at a temperature of -7.0C a)If 2.6×10^5J of heat are added to the ice, what is the final temperature of the system? b)Find the amount of ice, if any, that remains.
Male mosquitoes in the mood for mating find female mosquitoes of their own species by listening for the characteristic "buzzing" frequency of the female's wing beats
Starting from rest, a disk rotates about its central axis with constant angular acceleration. In 5.0 s, it rotates 45 rad. What was the angular acceleration during this time
A 240g block on a 60cm-long string swings in a circle on a horizontal, frictionless table at 70rpm.
A m1 = 14.50 kg object and a m2 = 10.00 kg object are suspended, joined by a cord that passes over a pulley with a radius of 10.00 cm and a mass of 3kg.
A Carnot engine operating between energy reservoirs at temperatures 300K \rm K and 530K K produces a power output of 1200W, What is the rate of heat output
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