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A 80-g bullet is fired from a rifle having a barrel 0.582 m long. Choose the origin to be at the location where the bullet begins to move. Then the force (in newtons) exerted by the expanding gas on the bullet is 14100 + 9100x - 24250x2, where x is in meters. (a) Determine the work done by the gas on the bullet as the bullet travels the length of the barrel. kJ (b) If the barrel is 1.10 m long, how much work is done? kJ (c) How does this value compare with the work calculated in part (a)? percent difference = ? %
A uniform electric field of magnitude 380 N/C pointing in the positive x-direction acts on an electron, What is the work done by the field on the electron
Find the speed of the car when brakes were applied.
A source delivers an AC voltage of the form ?v = 80.6 sin (78?t), where ?v is in volts and t is in seconds, to a capacitor. The maximum current in the circuit is 0.520A.
Conversations with astronauts on the lunar surface were characterized by a kind of echo in which the earthbound person's voice was so loud in the astronaut's space helmet, Calculate the distance from Earth to the Moon
The top of a refrigerator has an area of 0.6m2. The height of the refrigerator is 180 cm. What volume does refrigerator occupy in cubic meters.
A capacitor of 12µF is charged by a 30 V battery. Afterwards, the capacitor is disconnected from the battery and connected to an inductor with L = 2H. What is the initial charge on the capacitor
An uncharged capacitor and a resistor are connected in series to a source of emf. If = 12.00 V, C = 17.0 µF, and R = 100 ?, estimate the maximum charge on the capacitor
Displacement d1 is in the yz plane 58.4° from the positive direction of the y axis, has a positive z component of 5.99 m, find the angle between d1 and d2
Over a certain region of space, the electric potential is V = 5x - 5x2y + 2yz2. (Use any variable or symbol stated above as necessary.) What is the magnitude of the field at the point P, which has coordinates (5, 0, -5) m
A package is dropped out of a helicopter, which is moving upward at 10m/s at a constant rate. how high above the ground was the package when it was dropped
At the time the switch is closed completing a simple LC circuit, the capacitor has 3.4 J of stored energy and the inductor has no stored energy. What is the energy stored in the inductor at that time
A hollow sphere of inner radius 7.4 cm and outer radius 8.4 cm floats half-submerged in a liquid of density 800 kg/m3. Calculate the density of the material of which the sphere is made
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