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The work needed to stretch a certain spring from an elongation of 4.00cm to an elongation of 5.00cm is 30.5J a) what is the work needed to increase the elongation of the spring for 5.00 cm to 6.00 cm?
The answer to the b) part of this problem is "the kineticenergy is too large to expect that the electron could be confinedto a region the size of the nucleus".
A certain stick has a proper length of one meter. Observer A, moving with uniform velocity parallel to the stick, measures the length to be one quarter of its proper length. Observer B, at rest with respect to the stick, records the two events cor..
A box is hanging from a chain having a mass of 60 kg. The box has a mass of 78 kg. Find the tension in the top of chain and the bottom of the chain.
2.2 mol of neon gas is initially at a pressure of 1.8 atm and a temperature of 253oc. i if the gas is cooled at
Two identical cars (m = 1350 kg) are traveling at the same speed of 18.9 m/s. What is the magnitude of the total momentum of the two cars
Some asteroid fragments are large enough to not completely burn up in the atmosphere and they end up on the surface of the Earth. how could you determine which type of radiation was being emitted
A storage tank has a diameter of 80 ft, a height of 25 feet, andcontains oil to a height of 15 ft. The suction pumps, whichcan handle 15, 000 bbl/d are started, but the safety valves areclogged and a vacuum is drawn in the tank.
A car accelerates uniformly from rest to a speed of 40.0 mi/h in 12.0 s. Find (a) the distance the car travels during this time and (b) the constant acceleration of the car.
the acceleration record shown was obtained during the speed trials of a sports car. knowing that the car startys from
Suppose a spaceship runs out of fuel near a star. The crew erects a square, white sail 7.06 km on a side, Find the temperature of the star's surface
A man on a railroad platform attempts to measure the length of a train car by walking the length of the train and keeping the length of his stride a constant 82 cm per step. Determine the length of the train car
find an expression for the oscillation frequency of an electric dipole of dipole moment p and rotational inertia i for
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