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Would an object weigh differently at the poles than at the equator? If so, less or more and why? Can you explain how that effect comes about in terms of real physical forces?
A person rides in an elevator that is shot upward out of a cannon. Think of the elevator after it leaves the cannon and is moving freely in the gravitational field of Earth. Neglect air resistance
A mirror faces a cliff located some distance away. How many times does the muzzle flash of the gun travel the round trip distance between the mirrors before the echo of the the gunshot is heard
Suppose you wish to fabricate a uniform wire from 1.60 g of copper. The wire is to have a resistance of R = 0.580 ? and all the copper is to be used, What must be the length of this wire
A rocket is launched at an angle of 52° above the horizontal with an initial speed of 103 m/s. The rocket moves for 3s along its initial line of motion with an acceleration of 32 m/s2. At this time, its engines fail and the rocket proceeds to move..
How much work is done on the toboggan by the tension force? Explain how much work is done if the same tension is directed parallel to the snow?
The near point of an eye is 109 cm. A corrective lens is to be utilized to allow this eye to clearly focus on objects 26.0 cm in front of it. What must be the focal length of the lens? What is the power of the required corrective lens?
A string has a linear density of 6.80 10-3 kg/m and is under a tension of 345 N. Determine the speed of the traveling wave
Air is capable of supporting an electric field of about 3 x 106 N/C before a spark occurs. What would be the maximum static charge density you could put onto that cable if air separated the conductors
An oscillating LC circuit has a current amplitude of 7.50 mA, a potential amplitude of 250 mV, and the capacitance of 220 nF. What are (a) the period of oscillation.
A polystyrene cup contains 0.229 L of water at 20.0 degrees C. A 0.148 kg mass of an unknown material is heated to 51.2 degrees C. The mass is carefully placed in the cup. The cup has a lid placed over it. The system at equilibrium has a temperature ..
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. What is the change in length of the nail
Where would you look on the photographic plate for evidence of a mass-21 isotope of neon? And what accelerating voltage would allow these mass-21 ions.
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