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The two oppositely charged metal spheres in the figure have equal quantities of charge. They are brought into contact with a neutral metal rod.
What is the final charge state of each sphere and of the rod?
22.0g of copper pellets are removed from a 300^\circ \rm C oven and immediately dropped into 70.0mL of water at 19.0^\circ C in an insulated cup. Part A What will the new water temperature be?
0.5 kg of ice slowly melts. The latent heat of fusion is 80 kcal/kg. By how much does the entropy of the ice change
A girl of mass 29.9 kg stands on the rim of a frictionless merry-go-round of radius 1.78 m and rotational inertia 219 kg·m2 that is not moving. She throws a rock of mass 635 g horizontally in a direction that is tangent to the outer edge of the merry..
A 0.900-V potential difference is maintained across a 1.50-m length of tungsten wire that has a cross-sectional area of 0.600 mm2. What is the current in the wire.
A hot-air balloon is accelerating upward under the influence of twoforces, its weight and the buoyant force. What is the acceleration of the rising balloon
question in a circus act marcello mass 70.0 kg is shot from a cannon with a muzzle velocity of 24.0 ms at an angle of
If a charge of 0.30 C passes through a person's chest in 1.0 s, If this rate of charge transfer persists for 4.4s, how many electrons pass through the chest
A 0.07 kg bullet traveling at 602 m/s hits a 7.3 kg block of wood and stays in the wood. What is the velocity (speed)of the wood block
A concert loudspeaker suspended high off the ground emits 42 W of sound power. A small microphone with a 1.0 cm2 area is 43 m from the speaker. (a) What is the sound intensity at the position of the microphone
A cubical box with sides of length a#consists of five metal plates which are welded together and grounded, Find the potential everywhere inside the box
A 0.22 m radius pulley if free to rotate about a horizontal axis. At what acceleration will the larger mass fall to the ground
An ac source is connected to a resistor R = 75?, an inductor L = 0.01 H, and a capacitor C = 4 ?F. What is the phase difference ? between the voltage of the source and the current in the circuit when the frequency of the source is equal to half the r..
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