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On planet Tehar, the acceleration of gravity is the same as that onEarth but there is also a strong downward electric field with thefield being uniform close to the planet's surface. A 1.98 kg ball having a charge of 5.05 µC is thrown upward at a speed of 20.1m/s and it hits the ground after an interval of 4.10 s. What is the potential difference between the starting point and the top point of the trajectory?
A net torque of 36N*m acts on a wheel rotating about a fixed axis for 6 s. During this time the angular speed of the wheel increases from 0 to 12 rad/s. What is the magnitude of the frictional torque
A person is losing thermal energy through the skin at a rate of 120 W when his skin temperature is 30°C. find At what rate is he now losing thermal energy
marsha hits a tennis ball upward from the top of a 90-foot-high cliff with an initial velocity of 16 fts. marsha hit
In recent years, practical hybrid cars have hit the road - cars in which the gasoline engine runs a generator that charges batteries that run an electric motor. These cars offer increased efficiency, but significantly greater efficiency could be p..
A rope 3.4 m long has a mass of 0.85 kg. The tension in the rope is 51.0 N. What is the frequency of the power source if the power transmitted is 118 W
o skydivers are holding on to each other while falling straight down at a common terminal speed of 57.1 m/s. compute the change in kinetic energy of the system
A circular parallel-plate capacitor with a spacing of 3.2 mm is charged to produce a uniform electric field with strength of 1.50 multiplied by 106 N/C. What plate radius is required if the stored charge is -15.6 µC.
Original problem: a person walks at constant speedv1 along a straight line from A to B and then back alongthe line from B to A at constant speed v2, What is theaverage speed over the entire trip
A block of mass 2.50 kg is pushed 2.40 m along a frictionless horizontal table by a constant 16.0 N force directed 25.0° below the horizontal. Determine the work done by the force of gravity
1) Find the net force acting on particle 3 due to the presence of the other two particles. Report you answer as a magnitude and a direction measured from the positive x axis.
If the temperature of the water leaving the condenser in a stream turbine cycle were raised from 20?C to 30?C, what would be the decrease in the Carnot efficiency
a flat metal washer is heated. as the washers temperature increases what happens to the hole in the center? a flat
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