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Simply stated, if a horse pulls on a cart, the cart pulls equally on the horse. Given this situation, how can there be any acceleration and movement of the cart?
A rock is shot vertically upward from the edge of the top of a tall building. The rock reaches its maximum height above the top of the building 1.30 s after being shot. find With what upward velocity was the rock shot
What is the renewal time (years) of the Greenland Ice Sheet - production of new ice for the Greenland Ice Sheet is about 10 cm.
In one cycle, a heat engine does 310 J of work and releases 620 J of heat to a lower-temperature reservoir. What is the efficiency of the engine
A ball is dropped from rest at the top of a 6.10 m tallbuilding, falls straight downward and collides inelastically withthe ground, and bounces back. How many bounces can the ball make and still reach a windowsill that is2.38 m above the ground
A photon with wavelength 0.02585 nm strikes a free electron that is initially at rest. find the kinetic energy of the electron after the collision
Two converging lenses, the first by focal length 10.0 cm and the second with focal length 20.0 cm, are separated by 40.0 cm. An object, 3.00 cm in height, is placed 30.0 cm in front of the first lens. Where is the final image formed?
A block of wood floats in fresh water with two-thirds of its volume V submerged and in oil by 0.90V submerged. Discover the density of (a) the wood and (b) the oil.
A mass m=1.85 kg in a spring-mass system with k=5.44 N/m is observed to be moving to the right, past its equilibrium position with a speed of 4.38 m/s at time t=0. determine the equation of motion
an air bubble has a volume of 1.20 cm3 when it is released by a submarine 115 m below the surface of a lake. what is
a 80 kg student consumes 2500 cal each day and stays the same weight. one day he eats 3500 cal and wanting to keep from
What is the net amount of heat this person could radiate per second into a room at 19.0 oC (about 66.2oF) if his skin's surface temperature is 31.0oC? (At such temperatures, nearly all the heat is infrared radiation, for which the body's emissivity..
Two disks of identical mass but different radii (r and 2r) are spinning on frictionless bearings at the same angular speed ?0, but in opposite directions. The two disks are brought slowly together. The resulting frictional force between the surfac..
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