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A 1.7 kg mass is held at rest on top of a frictionless and horizontal table. A light string loops over a pulley which is in the shape of a 10 cm radius solid disk which has a mass of 1.7 kg. The light string then supports a mass of 1.7 kg which is hanging in air a)The mass on the table is released and the suspended mass falls. What is the acceleration of the falling mass b)What is the tension in the string which is attached to the sliding mass on the table? c)What is the tension of the string which supports the hanging mass?
Suppose a single electron orbits about a nucleus containing two protons (+2e), as would be the case for a helium atom from which one of the naturally occuring electrons is removed. obtain the magnitude of the electron's centripetal acceleration
A heat engine operates in a Carnot cycle between 83.0°C and 348°C. It absorbs 21005 J of energy per cycle from the hot reservoir. How much energy does it expel in each cycle by heat
Suppose you wish to make a solenoid whose self-inductance is 1.6 mH. How many turns of wire are needed
35mm camera is equipped with a 45 mm focal length lens is used to photograph a tree 15 m tall, what is the aperture diameter
A 31.0 omegacap.gif resistor and an 16.0 omegacap.gif resistor are connected in series across a 15.0 V battery. What is the voltage out of the battery
Three charges are at rest on the z axis: q1 = ?6.41 mC at z = 3.60 m, q2 = ?1.20 mC at z = 0 m, What is the potential energy of this system
A car drives over a hilltop that has a radius of curvature 120 m at the top of the hill with a speed of 20.0m/s. What is the normal force felt by the car tires
A canoe has a velocity of 0.37m/s southeast relative to the earth. The canoe is on a river that is flowing 0.47m/s, Find the magnitude of the velocity of the canoe relative to the river
A satellite is put in a circular orbit about Earth with a radius equal to 50% of the radius of the Moon's orbit. What is its period of revolution in lunar months
Suppose a patient having an MRI is immersed in a 3.0 T field along the axis of his body. He then quickly tips his head to the side, toward his right shoulder, tipping his head by 30 degrees in the rather short time of 0.15 s.
A potential difference of ?V = 12.0 V is found to produce a current of 0.40 A in a 3.2 m length of wire with a uniform radius of 0.40 cm, What is the resistivity of the wire
The atomic bomb that was dropped on Nagasaki in 1945 killed 140,000 people, How much mass was converted to energy when this took place
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