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A 56.0 kg mass is sliding down a frictionless plane at a speed of 4.20 m/s. A force of 55.0N parallel to the plane acts on the mass to pull it up the plane. When the force has acted over a distance of 6.80 m, the mass has a speed of 5.40 m/s. What change in gravitational potential energy occurred while the force acted on the mass?
The area of a rectangular loop 3.4 x 10-3 m2. The loop is placed in a magnetic field that changes from 0.20 T to 1.2 T in 1.6 s. What is the magnitude of the induced emf in the loop
The masses of the earth and moon are 5.98 × 1024 and 7.35 × 1022 kg, respectively. find the magnitude of the charge placed on each body
question pittsburgh pennsylvania and miami florida lie approx. on the same meridian. pittsburgh has a latitude of 40.5
Stuntman's Freefall, a ride at Six Flags Great Adventure in New Jersey, stands 39.6 m high. Neglecting the force of friction, evaluate the minimum power rating of the motor that raises
The hot resistance of a flashlight bulb is 2.20 , and it is run by a 1.53 V alkaline cell having a 0.100 internal resistance. Calculate the power supplied to the bulb using I2Rbulb
A transverse wave on a string is described by the equation y(x, t) = (2.27 cm) sin[(109 rad/s)t + (13 rad/s)x]. How fast does the wave move along the string
A diverrunning 1.9 m/s dives out horizontally from the edge of a verticalcliff and 2.8 s later reaches the water below. How far from its basedid the diver hit the water
The speed of a certain electron is 350 km/sec. If the uncertainty in its momentum is 0.010%, what uncertainty in its location must be tolerated
A capacitor is charged to a potential of 12.0 V and is then connected to a voltmeter having an internal resistance of 3.50 M?. After a time of 3.80 s, What is the time constant of the circuit
A ball is shot from the ground into the air. At a height of 9.60 m, the velocity is observed to be v = (7.70 m/s) i + (7.00 m/s) j. What is the maximum height that the ball will rise
a roller-coaster car has a mass of 1170 kg when fully loaded with passengers. as the car passes over the top of a
A satellite moves around the earth in a circular orbit at a constant speed of 5000m/s. find the radius of the orbit
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