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a ball rolls down a hill(1.8 m high) and off acurved ramp at the bottom and gets airborne, leaving at an angle of35 degrees w/respect to the ground, as a thin walled sphericalshell, what is distance traveled (range) of the ball?
1 mole of cu at temp. 0 celsius is placed in thermal contact with a second mole of cu at 100 celsius. pressure in the
A 55-kg box rests on a horizontal surface. The coefficient of static friction between the box and the surface is 0.30. What is the frictional force on the box
An automobile transmission has 175 hp of power entering from the engine, 167 hp leaving to the wheels, while losing 5000 Btu/hr to the surroundings as heat.
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. How long is the arm of the centrifuge
a mercury barometer reads 770.0 mm on the roof of a building and 785 mm on the ground. assuming a constant value of
An alpha particle (charge +2e, mass 6.64x10^-27) moves head onat a fixed gold nucleus (charge +79e). what was the initial speed of the alpha particle
A car starts at a position of x=2km and has a speed of 1 mph. After 56 s thecar has a speed of 44 mph. Determine the magnitude of the car's average acceleration during this time.
Find the magnitude of the magnetic flux through the floor of a house that measures 23m by 18m . Assume that the Earth's magnetic field at the location of the house has a horizontal component of 2.4×10^?5T pointing north, and a downward vertical compo..
in a small town there are only two am radio stations one at 930 khz and one at 1280 khz.what is the wavelength of the
The moon is a satellite that orbits the earth at a radius of 3.85 108 m. What is the orbital speed of the moon
a ditch 2.5 m wide crosses a trail bike path. nbspan upward incline of 15 degrees has been built up on the approach so
A cardinal (Richmondena cardinalis) of mass 4.30×10-2 and a baseball of mass 0.14 have the equal kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of baseball's momentum.
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