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A 31.0 kilogram block is connected to an empty 1.00 kilogram bucket by a cord running over a frictionless pulley. The coefficient of static friction between the block and the table is 0.485 and the coefficient of kinetic friction between the block and the table is 0.320. Sand is gradually added to the bucket until the system just begins to move.
(a) Estimate the mass of sand added to the bucket.
(b) Estimate the acceleration of the system.
an rl series circuit has r 79.0 omega and l 1.95 mh. the series combination is connected across a 170 v rms 59 hz
A ball is thrown with a velocity of 11.94 m/s at an angle of 43 degrees with the horizontal from an initial height of 1.76 m above the ground. Find the maximum height of the ball
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You are standing between two speakers that are separated by 80 m. Both speakers are playing a pure tone of 286 Hz. How fast are you running
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question a man lifts a 1.8 kg stone vertically.at some instant of time t1 during the beginning of the lift the stone is
A sample of dry air has a temperature of 300 K, a volume of 3 liters and a pressure of 4 atmospheres. The air then undergoes the following changes: (a) it is warmed under a constant pressure to 500 K, (b) it is cooled under constant volume to 250 ..
calculate the ratio of the drag force on a jet flying at 800 kmh at an altitude of 8.0 km to the drag force on a
An airplane flying upward at 35.3 m/s and an angle of 30.0° relative to the horizontal releases a ball when it is 255 m above the ground. find the time of it takes the ball to hit the ground
question1an airplane with a speed of 79 ms is climbing upward at an angle of 48deg counter clockwise from the positive
A tiny 0.0250 -microgram oil drop containing 15 excess electrons is suspended between to horizontally closely-spaced metal plates, Which plate must be positive, the upper one or the lower one
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