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A crane's trolley at point P moves for a few seconds to the right with constant acceleration, and the 875 kilogram, load hangs on a light cable at a 4.8o angle to the vertical. Find what is the acceleration of the trolley and load?
Determine the capacitance of a Teflon-filled parallel-plate capacitor having a plate area of 1.50 cm2 and insulation thickness of 0.0700 mm
Initially there are 6*10 power 9 radioactive of element w (decay constant 0.173/day) in a sample. As a nucleus of w decays, it converts 2.67*10 power -28 kg of its mass to energy and releases the energy. How much time (in days) is needed for the samp..
A light bulb is placed 22.3 cm in front of a concave mirror. Calculate the focal length of the concave mirror
A 47.0 gram golf ball is driven from the tee with an initial speed of 58.0 m/s and rises to a height of 24.6 meter. Ignore air resistance and evaluate the kinetic energy of ball at its highest point
A soccer ball is lofted toward the goal from a distance of 9.00 m. It has an initial velocity of 12.7 m/s and is kicked at an angle of 72.0 degrees above the horizontal. (a) When the ball crosses the goal line, how high will it be a..
The third floor of a house is 7.00 m above street level. How much work is necessary to move a 143kg refrigerator to the third floor.
You are driving home from school steadily at 80 for 150. It then begins to rain and you slow to 50. You arrive home after driving 3 hours and 20 minutes.
A 499 g air-track glider attached to a spring withspring constant 13.4 N/m is sitting at rest on a frictionless airtrack. What is the period of the subsequent oscillations
the place you get your hair cut has two nearly parallel mirrors 7.0m apart. as you sit in the chair your head is 1.5m
The electric field midway between two equal but opposite point charges is 939N/, What is the direction of the electric field, Calculate the magnitude of the electric field
A total charge of 14 mC passes through a cross-sectional area of a nichrome wire in 1.4 s. I need to know how many electrons pass through the cross-sectional area in 23.0 s
Two air-track gliders of equal mass are initially moving in the same direction along a straight line. What is the speed of the first glider (rearmost) after the collision
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