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A 0.700-kg ball is on the end of a rope that is 2.50 m in length. The ball and rope are attached to a pole and the entire apparatus, including the pole, rotates about the pole's symmetry axis. The rope makes an angle of 70.0° with respect to the vertical as shown. What is the tangential speed of the ball?
A point P is on a rim of a wheel of radius 2.0m. At time t=0 wheel is at rest and P is on the x-axis. The wheel undergoes a uniform angular acceleration of 0.01 rad/s2 about the center O. Find out the time t, when P returns to an original position on..
A moving particle encounters an external electric field that decreases its kinetic energy from 8650 eV to 7540 eV as the particle, Determine the charge of the particle. Include the algebraic sign (+ or ?)
What inductance must be connected to a 25 pF capacitor in the oscillator capable of generating 480 nm (i.e., visible) electromagnetic waves.
A snow skier, starting from rest, goes downhill for 5.00s and reaches a level spot of smooth snow. What is the skier's average acceleration down the hill
Measurements with microelectrodes have shown that a 0.30-nm-diameter potassium ion(K+) channel carries a current of 1.8 pA, How many potassium ions pass through if the ion channel opens for 1.0 ms
A layer of oil, with a refractive index of 1.40798, 0.97483 mm thick, How many wavelengths are contained in the light wave passing back and forth through the oil
Water has a mass per mole of 18g/mol, and each water molecule (H2O) has 10 electrons.
A wheel moves forward for 2 seconds making two complete revolutions. The wheel rotates during an arc length of 8.2 meters.
Spark plugs should be tightened to a specified torque of 13.8Nm. You have a wrench that is 0.25 m long, What force must you exert on the wrench
how many electrons have been transferred. If a metric ton is 1.000 103 kg, how various 90 kg people can safely occupy an elevator that can hold a maximum mass of exactly 1 metric ton.
Using Einsteins formula
A car traveling at a constant speed of 27.0 m/s passes a trooper hidden behind a billboard. From the intersection of the two curves, read the time at which the trooper overtakes the car
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