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The potential difference across the terminals of a battery is 8.7 Volt when there is a current of 1.53 Amp in the battery from the negative to the positive terminal. When the current is 3.57 Amp in the reverse direction, the potential difference becomes 9.7 Volt.
Part A: Compute the internal resistance of the battery?
Part B: Compute what is the emf of the battery?
A father (m = 65 kg) and son (m = 38 kg) are standing facing each other on a frozen pond. The son pushes on the father and finds himself moving backward at 3.0 m/s after they have separated. How fast would the father be moving.
a projectile is launched on the earth with a certain initial velocity and moves without air resistance. another
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A 2.90 kilograms bucket is attached to a disk-shaped pulley of radius 0.131 meter and mass 0.692 kilogram. If the bucket is allowed to fall, Determine what is the angular acceleration of the pulley
two loudspeakers a and b are separated by a distance of 2.0 m. the speakers emit sound waves at a frequency of 680 hz
Excited states do not in general live very long before they decay.Suppose a certain excited state lives just 10^-7 s. In that case weknow the time when the atom is in the excited state quiteaccurately--to within ?t=10^-7 s. That means there is a ..
An insulated Thermos contains 150cm3 of hot coffee at 83°C. You put a 12g ice cube at its melting point to cool the coffee. By how many degrees has your coffee cooled once the ice has melted and equilibrium is reached? Treat the coffee as although..
find the speed of the test charge when it reaches the center of the square.
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