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A 50.0 Kg crate is being pulled along a horizontal smooth surface. The pulling force is 10.0 N and is directed 20 degrees above the horizontal. What is the acceleration of the crate?
The diameter of the moon is 3.78x10^6 m. It subtends an angle of 0.00982 radians at the surface of the Earth. How far is the Moon from the Earth?
A pilot flies her route in two straight-line segments. The displacement vector A for the first segment has a magnitude of 242 km, find the directional angle
A pot of hot water is boiling on your stove. The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius. The aluminum is 3 mm thick.
A gold nucleus contains 197 nucleons packed tightly against each other. A single nucleon (proton or neutron) has a radius of about 1.310-15 m. Calculate the approximate radius of the gold nucleus. (Hint: Remember that the volume of a sphere is (4/..
A 1055-kg van, stopped at a traffic light, is hit directly in the rear by a 790-kg car traveling with a velocity of +2.40 m/s. What is the final velocity of each vehicle
A hollow ball with mass 0.50kg and radius 10cm rolls down a 3.0m high ramp without sliding.What is the maximum hight that the ball reaches?
Gold, which has a density of 19.32 g/cm3, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber. (a) If a sample of gold with a mass of 7.948 g, is pressed into a leaf of 1.547 m thickness.
A stationary whistle emits a sound of 188Hz. If passengers in a car hear the whistle with a frequency of 198 Hz, how fast was the car moving? Make use of 340 m/s for the sound velocity.
As a 1.00 mol sample of a monatomic ideal gas expands adiabatically, the work done on it is -2500 J. Calculate the final pressure and temperature
On your wedding day your lover gives you a gold ring of mass 3.98 g. 59 years later its mass is 3.73 g. On the average how many atoms were abrated from the ring during each second of your marriage? The atomic mass of gold is 177 u.
A long horizontal hose of diameter 3.2 cm is connected to a faucet. At the other end, there is a nozzle of diameter 1 cm. detetmine the velocity of the water in the hose
In a 45° - 90° - 45° prism with a ray of light entering and exiting on the long side of the prism after undergoing two total internal reflections. Determine the minimum index of refraction of the prism in order for this to occur
A 0.950kg block is attached to a spring with spring constant 16N/m, What is the amplitude of the subsequent oscillations and What is the block's speed at the point where x= 0.20
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