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Two large conducting plates are connected to opposite poles of a 12-volt battery. The battery is disconnected and the distance between the plates is tripled without disturbing the charges on the plates. An electron is then released from rest at the negative plate and travels to the positive plate. What is the electron's speed when it reaches the positive plate?
A piano tuner sounds two strings simultaneously. One has been previously tuned to vibrate at 287.0 Hz. The tuner hears 2.0 beats per second. What was the original frequency of the untuned string
Sand dunes on a desert island move as sand is swept up the windward side to settle in the leeward side, Calculate the average speed in each case in m/s
A steel piano wire vibrates in its first harmonic mode with a fundamental frequency of f1 = 410 [Hz]. How many harmonics can be heard by a person
what is the distance of closest approach of the two particles. explain two ways in which you could you this equipment to raise the crate.
A certain automobile engine delivers 2.24 104 W (30.0 hp) to its wheels when moving at a constant speed of 21.0 m/s ( 47 mi/h). What is the resistive force acting on the automobile at that speed?
A golfer, putting on a green, requires three strokes to "hole the ball." During the first putt, the ball rolls 4.0 m due east. For the second putt, the ball travels 3.1 m at an angle 20° north of east. The third putt is 0.50 m due north. What disp..
A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. How high will the ball rise
An ideal gas at 100kPa and 0.6m3 is compressed through an isothermal process. During the process, 60kJ of heat is transferred out of the ideal gas. Determine volume and pressure at final state.
In seawater, a life preserver with a volume of 4.00×10?2 m^3 will support a 70.0 kg person, find the density of the material composing the life preserver
A pendulum clock is accurate on earth, where the period of its pendulum is 1.00 s. what would be the elapsed time shown on the clock
Two forces are applied to a block of mass M equal to 14 kg that sits on a horizontal, frictionless table. Find the x and y components of the second force
One mole of an ideal diatomic gas is heated from a temperature of 22 degrees C to a temperature of 95 degrees C. How much heat in joules must be supplied if the volume is kept constant during heating?
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