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Two metal objects have net charges of +81 pC and -81 pC, which result in a 26 V potential difference between them. (a) What is the capacitance in picofarads of the system? (b) If the charges are changed to +260 pC and -260 pC, what does the capacitance in picofarads become? (c) What does the potential difference become?
a dentist causes the bit of a high-speed drill to accelerate from an angular speed of 1.42 x 104 rads to an angular
A 56 kg woman and a 78 kg man stand 13.0 m apart on frictionless ice, How far from the man is their center of mass
A concert loudspeaker suspended high off the ground emits 38W of sound power. What is the sound intensity at the position of the microphone
Consider the (infinite) midplane between two charges of equal magnitudes and oppoisite signs. If the charges are + and - q, what is the electric flux through the midplane
Certain stars are thought to collapse at the end of their lives, combining their protons and electrons to form a neutron star. what would be the radius of the star
A puck on a horizontal frictionless table is attached to a string that passes through a hole in a table. Explain what happens to the puck's angular momentum
X rays of wavelength 0.0196 nm are directed in the positive direction of an x axis onto a target containing loosely bound electrons. determine the corresponding change in photon energy
Two point charges of magnitude 4.0 μC and -4.0 μC are situated along the x-axis at x1 = 2.0 m and x2 = -2.0 m, respectively
a ball is launched with a velocity of magnitude 7.00 m/s, at an angle of 40.0° to the horizontal. find the angle of its displacement from the launch point
Illustrate what is the maximum mass, m1, that can be hung from the chords before the 5.0kg mass just begins to move?
question1drop solid sphere of aluminium into a bucket of water sitting on ground. the buoyant force equals weight of
A student doing an experiment pours 0.110kg of heated copper shot into a 0.355-kg aluminum calorimeter cup containing 0.170kg of water. What was the initial temperature of the shot
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