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Two solid spheres, each of mass m, are rolling without slipping with a speed v. If the spheres have radii R1 and R2 with R1/R2 = 5.5, what is the ratio of their kinetic energies?
A 1 115.0 kg car traveling initially with a speed of 25.000 m/s in an easterly direction crashes into the back of a 8 200.0 kg truck moving in the same direction at 20.000 m/s. What is the velocity of the truck right after the collision
An explorer in the dense jungles of equatorial Africa leaves his hut. He takes 38 steps at an angle 45 degrees north of east, What is the direction of the displacement that will return the explorer to his hut
The specific heat of ethanol is 2.44 J/g·°C. How various kilojoules of energy are required to heat 50.0 g of ethanol from -20.0°C to 68.0°C.How far last car travel before momentarily coming to rest.
right circular cylinder open at the top is filled with liquid and rotated about its vertical axis at such a speed that half the liquid spills out
A solenoid is to have an inductance of 0.295 mH, a cross-sectional area of 5.91 x 10-4 m2, and a length of 34.9 cm. How many turns per unit length should it have
An escaped convict runs 1.70 km due east of the prison. He then runs due north to a friend's house. what is the direction of his total displacement vector with respect to due east
A 2000 kg car is rolling at 2.0 m/s. You would like to stop the car by firing a 18 kg blob of sticky clay at it. How fast should you fire the clay
Two charged bodies exert the force of .145N on each other. If they are moved so that they are one fourth as far apart, what force is exerted.
A particle travels counter clockwise around the origin at constant speed in the circular path that has a diameter of 2.50 m, going around twice per second. Point Q is on the path halfway between points P and R that lie on the x axis and the y axis..
A horizontal water main with a cross-sectional area of 186 cm2 necks down to a pipe of area 57.8 cm2. Determine the flow rate through the system
A thin sheet of transparent material is surrounded by air. The sheet has an index of refraction of 1.47, Calculate the wavelength of the light in the material
What is the total displacement and the angle of displacement
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