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Suppose one gallon of gasoline produces 1.1 × 108 J of energy, and this energy is sufficient to operate a car for twenty miles. If a 429 mg drop of gasoline could be converted completely into thermal energy, how many miles could the car go with that energy?
At time t = 0 s, apple 1 is dropped from a bridge onto a roadway beneath the bridge; somewhat later, apple 2 is thrown down from the same height.
A 9300 kg boxcar traveling at 20m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 10 m/s. What is the mass of the second car.
What is the spring constant (k) of the bungee cord.At what time will the object be moving with a speed of 15 m/s.
what is minimum speed the tranquilizer dart must leave the gun to still hit the monkey.
A French submarine and a U.S. submarine move toward each other during maneuvers in motionless water in the North Atlantic, What are the speeds of the U.S. and the French subs
A rotating door is made from four rectangular sections, as indicated in the drawing. The mass of each section is 80kg. A person pushes on the outer edge of one section with a force of F = 72N that is directed perpendicular to the section. Find out..
Fred and Barney are two electric charges that are to begin with held 1 meter apart and experience an electric repulsion of 10 pounds of force. What would be the force of repulsion between them be if the two were moved closer together so that they ..
A small metal bead, labeled A, has a charge of 29nC . It is touched to metal bead B, initially neutral, so that the two beads share the 29nC charge, What is the charge qA and qB on the beads
In the figure below, a slide loving pig slides down a certain 32° slide in twice the time it would take to slide down a frictionless 32° slide. What is the coefficient of kinetic friction between the pig and the slide
A girl throws a rock horizontally with a speed of 12.0 m/s from a bridge. It falls 2.28 seconds before reaching the water below. How high is the bridge from the water? How far horizontally does the rock travel before striking the water.
A wire is stretched between two posts. Another wire is stretched between two posts that are four times as far apart. The tension in the wires is the equal, and they have the same mass.
An archer shoots an arrow horizontally at the target 14 m away. The arrow is aimed directly at the center of target, but it hits 59 cm lower.
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