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Two masses of 4.00 kg each, connected by a string, slide down a ramp making an angle of 45° with the horizontal. The coefficient of kinetic friction between m1 and the ramp is 0.33. The coefficient of kinetic friction between m2 and the ramp is 0.19. a) Find the magnitude of the acceleration of the masses. b) What is the tension in the string?
A 310 kg weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 28.0 m/s2 for 32.0 s, and then runs out of fuel. Overlook any air resistance effects.
What is the velocity of the plank relative to the surface of ice.
use the inverse square law to display that in space shuttle territory, 200 kilometers above earth's surface, the force of gravity on a shuttle is about 94 percent of that at earth's surface.
A small spherical insulator of mass 8 x 10 kg and change +0.600 micro Coulomb is hung by a tin wire of negligible mass. A charge of -0.900 micro Coulomb is held 0.150 m away the sphere and straight to the right of it, so the wire makes the angle with..
What is the tangential acceleration of a bug on the rim of a 13.0-in.-diameter disk if the disk accelerates uniformly from rest to the angular speed of 77.0 rev/min in 3.40 s.
What is the direction of E for points. find the balls initial speed.
A hunter aims directly at a target (on the same level) 84.2m. If the bullet leaves the gun at a speed of 193 m/s, by how much will it miss the target.
Suppose you have a tube 1.20 m long, open on both ends. Determine the frequency of the 2nd overtone, assuming the speed of sound to be 343 m/s. Repeat for the same length tube but with a closed end.
A magnifier has a magnification of 8 times. How far from the lens should an object be placed so that its (virtual) image is at the near-point distance of 25 {rm cm}.
A hiker, who weighs 919 N, is strolling through the woods and crosses a small horizontal bridge. The bridge is uniform, weighs 4410 N, and rests on two concrete supports, one on each end. He stops 1/3 of the way along the bridge.
If the magnetic field strength is 0.845 T, what is magnitude and direction of the magnetic force on the wire between the poles
A patients blood pressure is measured as 140 / 80, measured in level with the heart. What would you expect the blood pressure to be at the top of the head if there is a 45cm height difference in the two points. Density of blood is 100kmm-3. Give r..
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