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A 2900 pF air-gap capacitor is connected to a 7.4 V battery. If a dielectric with a dielectric constant of 5.5 is now placed between the plates, how much additional charge will flow from the battery onto the capacitor?
A transmission line that has a resistance of 0.5omega per km of length is used to transmit 200 MW across 300 miles. what should be the transmission voltage
You jog at 6.2 mi/h for 5.0 mi, thenyou jump into a car and drive for another 5.0 mi. With what average speed must you drive
what mass of water at 27.0 degc must be allowed to come to thermal equilibrium with a 1.59-kg cube of aluminum
A 3.0 kg block slides along a frictionless horizontal surface with a speed of 7.0 m/s. How far up the ramp does the block slide before coming momentarily to rest
An electromagnet is made by inserting a soft iron core into a solenoid. What is the relative permeability KB of the iron core
A horizontal spring is lying on a frictionless surface. One end of the spring is attached to a wall, What is the speed of the object at the instant when the spring is stretched by0.042 m relative to its unstrained length
Two capacitors, one 12.0 µf and the other of unknown capacitance, are connected in parallel across a battery of EMF 9.0 V. What is the unknown capacitance
A 7 kg sample of mercury is completely solidified and liberates 110 kJ of energy. What is the original temperature of the mercury? (The melting point of mercury is 234 K, the heat of fusion of mercury is 11.3 kJ/kg, and the specific heat of mercury i..
Planet X is 347 times more massive than Earth, and its radius is 10.3 times Earth's radius. How many times more would you weigh on Planet X
A double- slit experiment is performed by a coherent (single frequency/wavelength) beam of laser light. Assume that the two slits are separated by a distance D= 0.1 mm; the distance (H) among the center of the pattern and the second ( m=2) bright reg..
A heavy crate is attached to the wall by a light rope. Another rope hangs off the opposite edge of the box. If you slowly increase the force on the free rope by pulling on it in a horizontal direction, which rope will break? Ignore friction and th..
If the detector moves toward the source, vd is positive; if the source moves toward the detector, vs is positive. What frequence is detected by a stationary train
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