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Superman throws a 0.18 kg baseball at a speed of 0.932c. Find the following for the baseball.
a) rest energy
b) kinetic energy
c) total energy
a carnival ride consists of a vertical cylindar, radius 2 m. When it revolves it pins people to its walls, What is the required period of revolution
A 31.0-kg child on a 1.00-m-long swing is released from rest when the ropes of the swing make an angle of 30.0° with the vertical. Neglecting friction, find the child's speed at the lowest position.
A transformer consisting of two coils wrapped around an iron core is connected to a generator and a resistor, What is the peak emf of the generator?
Two meteoroids are 2.6×105 km from Earthand moving at 2.5 km/s. One is headed straight for Earth,while the other is on a path that will come within 8500 km of Earth's center. What is the speed of the first meteoroid when itstrikes Earth?
A 9 ohm resistor are connected in series to a power supply. The voltage drop across the 6 ohm resistor is measured with a amphmeter and found to be 12.0 volts. what is the voltage setting of the power supply
A lady is pulling her luggage that has a mass of 24 kg. What is the total power exerted on the luggage by the lady
A 57.5 kg skateboarder starts out with a speed of 1.75 m/s. He does +80.0 J of work on himself by pushing with his feet against the ground. How much has the vertical height of the skater changed
A 1442 kg car is traveling south, and a 2028 kg van is traveling west. what is the speed of each vehicle
As a function of time t, force component Fx that acts on a 3.00 kg ice block that can move only along the x axis. At t=0, the block is moving in positive direction of the axis, with a speed of 3.0 m/s. what are its (a) speed and (b) direction of trav..
The magnitude of vector A is 24 m, and it points in the positive y direction. What are the magnitude and direction of vector
A car travels at a constant speed around a circular track whose radius is 2.6 km. compute the magnitude of the centripetal acceleration of the car
Three point mass particles are located in a plane: 3.67 kg located at the origin, How far is the center of mass of the three particles from the origin
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