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A 100 pF parallel-plate capacitor with a .5 mm plate spacing is charged by a 12 V battery.
a) what is the electric field between the plates?
b) what is the total energy stored in the capacitor? Find this in two ways: directly from the given information and also from the result of part (a)
The left face of a biconvex lens has a radius of curvature of magnitude10.4cm, and the right face has a radius of curvature of magnitude20.0cm. The index of refraction of the glass is1.47. Calculate the focal length of the lens for light incident f..
A fugitive tries to hop on a freight train traveling at a constant speed of 4.8. What is the distance traveled to reach the box car
a helium nucleus has radius rhe 1.9 fm mass m 6.6 times 10-27 kg and charge 2e. a gold nucleus has charge 87e and
A grade school student plans to build a 31-power telescope as a science fair project. She starts with a magnifying glass with a focal length of 4.8cm as the eyepiece
The first stage of a space vehicle consumed fuel and oxidizer at the rate of 1.85 104 kg/s, with an exhaust speed of 3.30 103 m/s. Calculate the thrust produced by this engine
A relaxed crystalline lens has a refractive index n=1.42 and radii of curvature R1=+10.0mm, Calculate the focal length and optical power of the lens
A car is designed to get its energy from a rotating flywheel with a radius of 2.25 m and a mass of 550 kg. The flywheel can be considered as a uniform thin cylinder. Before a trip, the flywheel is attached to an electric motor, which brings the flywh..
When a spacecraft travels from the Earth to the Moon, both the Earth and the Moon exert a gravitational force on the spacecraft. How far from the Earth's surface must the spacecraft be
On a very muddy football field, a 100kg linebacker tackles an 85kg halfback. What is the direction of this velocity
A loaded railroad car of mass 6000 kg is rolling to the right at 2.0 m/s when it collides and couples with an empty freight car of mass 3000 kg, What is the velocity of the pair after the collision
A 2.4 kg solid cylinder (radius = 0.20 , length = 0.55 ) is released from rest at the top of a ramp and allowed to roll without slipping. what is the translational kinetic energy
A golf ball strikes a hard, smooth floor at an angle of 20.6 ° and, as the drawing shows, rebounds at the same angle. The mass of the ball is 0.0298 kg, and its speed is 34.6 m/s just before and after striking the floor. What is the magnitude of t..
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