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An object is placed 49 cm in front of a converging lens. An image forms which has a magnification of 2.26 and is inverted. The object is then moved to 16.7 cm from the lens. What is the magnification of the image when it is moved there? Include a negative sign if inverted.
If the parachutist comes to rest with constant acceleration over a distance of 0.710 m, illustrate what force does the ground exerts on her?
Two point charges are on the y-axis. A 5.0 µC charge is located at y = 1.45 cm, and a -2.26 µC charge is located at y = -1.70 cm. Find the total electric potential at the origin
A ball is thrown horizontally from the roof of a building 9.0m tall and lands 9.7m from the base. What was the ball's initial speed
A vertical straight wire carrying an upward 24-A current exerts an attractive force per unit length of 8.8 *10-4 N/m on a second parallel wire 7.0cm away. What current (magnitude and direction) flows in the second wire?
A 12.0 kilogram shell is launched at an angle of 55o above the horizon with an initial velocity of 150 m/s. obtain how much energy was released by the explosion
1200-kg car pushes a 2100-kg truck that has a dead battery to the right. What is the magnitude of the force the car applies to the truck
A 2.6-kg cart is rolling along a frictionless, horizontal track towards a 1.7-kg cart that is held initially at rest. What is the total momentum of the system of the two carts
A 4 m long rope weighing 1.4 N is stretched so that the tension is 10 N. The left end is then made to oscillate vertically at 4 Hz by shaking the rope up, What is the speed of the traveling waves on the rope
question the rectangular coils in a 315-turn generator are 15cm by 15cm. what is the maximum emf produced by this
A wheel starts from rest and reaches an angular speed of 6.0 rad/s while turning through 2.0 revolutions. What is the average angular acceleration of the wheel
Suppose you are climbing up stairs, gaining 10 meters of height per minute. In order to do that, your body has to do some work, using energy, at a given rate. What is the power produced by your body? Ignore energy losses.
A 1.11 10-3 µF capacitor has an initial charge of 0.100 C. When a resistor is connected across the capacitor plates, there is an initial current through the resistor of 1.04 A. What is the current 1.10 s later?
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