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A. In a science fiction movie, a 100 g base ball travelling with a speed of 60 m/s and an electron travelling at a speed of 1.2 x 10^8 m/s are approaching each other for a head-on collision. What is the momentum of the base ball?
B. What is the kinetic energy of the electon?
An electron with an initial speed of 4.00×105m/sis brought to rest by an electric field, What was the initial kinetic energy of the electron, in electron volts
An extremely large nonconducting sheet creates equipotential surfaces, which are planes. What is the surface charge density on the sheet
A man in search of his dog drives first 10mi northeast, then 54mi straight south, and finally 6mi in a direction 30° north of west. What are the magnitude and direction of his resultant displacement.
An ice cube sliding along the ground at 5 m/s goes off a ramp pointed straight up as shown, What is the speed of the ice cube when it comes down, just before it hits the ground
calculate the average acceleration in m/s^2 (meter per second square), using a coordinate system with the X axis in the direction of the car's original motion and the Y axis toward the side of the road to which the car skids.
The Earth has a static electric field almost everywhere on the surface of about 100 V/m, pointed downward, called the "Fair weather field". Calculate the total charge induced on the Earth's surface
In an open RC circut, the total resistance is 15Kohms and the battery emf is 24 and constant is measured to be 35 microsecond calculate (a) the total capacitance of the circuit
Two blocks are connected by a cord passing over a small (frictionless) pulley as shown below. The angle ? = 30 degrees, what is the mass, M, of the large block
In a Hall-effect experiment, a current of 2.9 A sent lengthwise through a conductor 0.89 cm wide, 3.1 cm long,, find the drift speed (in m/s) of the charge carriers
A thick-walled hollow cylinder (inner radius=47 cm, outer radius=66 cm) rolls down a 7° incline. If it starts with a speed of 1.9-m/s, what is its speed after it has travelled 16 m? (m/s).
A physics professor wants to demonstrate the large size of the henry unit. On the outside of a14-cm-diameter plastic hollow tube, How many kilometers of copper wire will be required
What is the focal length of the contact lenses that will enable him to see distant objects clearly
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