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A force of 8800 N is exerted on a piston that has an area of 0.010 m2. What is the force exerted by a second piston that has an area of 0.040 m2?
If the body is 20% efficient at converting chemical energy into mechanical energy, approximately how many joules and kilocalories of chemical energy does the body expend during the stair climb? Note: 1 food calorie = 1 kilocalorie = 4186 J. Expres..
Compute the binding energy of the least tightly bound proton in a12C nucleus. Compute the binding energy of the least tightly bound neutron in a12C nucleus. It this binding energy greater than that found in part (1)? What is the physical reason for t..
runner a is initially 5.7 km west of a flagpole and is running with a constant velocity of 8.3 kmh due east. runner b
Water flows into a bucket at the rate of 0.0005 m^3 / s. Thebuckets has a hole in the bottom of area 2.5 square cm. How high above the bottom of the bucket will the water rise
Block C starts from rest and moves downward with a constant acceleration. Knowing that after 12 s the velocity of block A is 456 mm/s, determine
A certain conductor has 7.60 1028 free electrons per cubic meter, a cross-sectional area of 4.00 10-6 m2, Find the drift speed of the electrons in the conductor
a 10-kg cylinder rolls without slipping on a rough surface. at an instant when its center of gravity has a speed of 10
When monochromatic light shines vertically on a soap film (n = 1.33) with air on each side, the second smallest nonzero film thickness for which destructive interference of the reflected light is observed is 296nm. What is the vacuum wavelength of th..
a 25.8 g block of copper whose temperature is 406 k is placed in an insulating box with a 53.4 g block of lead whose
An experimental space station consists of a large rigid rod with length L = 100 m and mass M = 10,000 kg, which rotates about an axis perpendicular to its length and through its center. Two spherical compartments, each containing quarters, laborat..
One of the asteroids, Ida, looks like an elongated potato. Surprisingly it has a tiny (compared to Ida) spherical moon! Find the acceleration of gravity on the surface of this little moon
What is the initial momentum of the entire system? What is the momentum of the entire system after the collision? What is the final velocity of each car?
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