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A capacitor is connected across the terminals of an ac generator that has a frenquency of 460 Hz and supplies a voltage of 24 V. When a second capacitor is connected in parallel with the first one, the current from the generator increases by 0.18 A. Find the capacitance of the second capacitor.
The mass of Pluto is 0.0025 times that of earth, and its radius is 0.180 times that of earth. Calculate the acceleration of gravity at the surface of Pluto
Mabel walks down a straight hall from a bench to the door of her spanish class at a rate of 1.4m/s for 28 s, then she realizes she forgot her folder. Compute Mabel's average speed
A 1.5 V battery is rate at 1,800 milliamp hrs (mAh). How much electrical energy (in joules) is stored in the battery when it is new
An object is projected horizontally at 8.0m/s from the top of a 122.5 m cliff. How far from the base of the cliff will the object strike the ground
Four masses M in deep space are connected by four identical light springs with spring constant k and equilibrium length L. What is the kinetic energy of this system
In each cycle of its operation, a refrigerator removes 10 J of heat from the inside of the refrigerator and releases 38 J of heat into the room. How much work per cycle is needed to operate this refrigerator.
The position of a particle is given in cm by x = (5) cos 5?t, where t is in seconds. Find the maximum acceleration of the particle
A pendulum makes 24 oscillations in 39s. The period is 1.6 s 1. Find the pendulum's length
A uniform thin rod of mass 4.19 kg pivots about an axis through its center and perpendicular to its length. What must the length of the rod be so that the moment of inertia of the three-body system with respect to the described axis is 0.977 kg·m2
A football player tests his vertical jump by jumping straight up a distance of 47.9 inches. What was the player's initial velocity in meters per second
An x-ray tube is operated at 40600 V. Calculate the minimum wavelength of the radiation emitted by this tube. find the spacing between reflecting planes in the crystal
You are standing at rest with respect to the earth holding a lance which you measure as 10 meters long. Which lance hits the other person first
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