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The terminals of a 12-V battery are connected to parallel plates. What plate separation would produce an electric field between the plates of 1400 N/C?
The heat of vaporization of ethyl alcohol is about 200 cal/g. If 2.8kg of it were allowed to vaporize in the refrigerator, how many grams of ice would be formed from 0 °C water.
define How fast is the osprey approaching. Two of the fragments move with the same speed right after the explosion as the entire projectile had just before the explosion.
An oak barrel with a lid of area 0.20 m2 is filled withwater. A long, thin tube of cross-sectional area 5.0 X10-5 m2 is inserted into a hole at the centerof the lid, and water is poured into the tube. When the waterreaches 12 m high, the barrel bu..
It is desired to cool iron parts from 500°F to 100°F by dropping them into water that is initially at 55°F. how many kilograms of water are needed per kilogram of iron
A fifteen-watt heater is used to heat a monatomic ideal gas at a constant pressure of 6.61 x 105 Pa. How long was the heater on
A plane, diving with constant speed at an angle of 49.0° with the vertical, releases a projectile at an altitude of 560 m. The projectile hits the ground 6.00 s after release. What is the speed of the aircraft
A wave has an angular frequency of 110 rad/s, Calculate the angular wave number and the speed of the wave
A driver travels northbound on a highway at a speed of 28.0 m/s. What frequency does the driver observe as the police car approaches
A copper strip (n = 8.47 1022 electrons per cubic centimeter) 2 cm wide and 0.07 cm thick is used to measure the magnitudes of unknown magnetic fields that are perpendicular to the strip. Find out the magnitude of B for the following Hall voltages..
a driver must change a tire that has a stuck lug nut. a torque of 288 inch-pounds is required to free the nut. how
A cluster of galaxies has a radius of about 5.2 million light-years (4.9×10^22) and an intracluster medium with a temperature of (6.5×10^7) K. Estimate the mass of the cluster. Give the answer in both kilograms and solar masses. Suppose combined l..
What minimum force is necessary to start the block moving up the wall? (Hint: The static frictional force is now directed down the wall.)
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