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An electron moving parallel to the x axis has an initial speed of 3.70x10^6 m/s at the origin. Its speed is reduced to 1.40x10^5 m/s at the point x = 2.00 cm. Calculate the potential difference between the origin and that point. Which point is at the higher potential? The Answer is delta V= -38.9, x=0cm
What is the mass of water before the hot iron is put into the cup? How much energy is required to melt all of the ice, How much energy leaves the iron in the form of heat
If you move towards a pipe at a speed of 3.3m/s, what frequency will you hear from this organ pipe? speed of sound is 330m/s
Suppose a ski-jumper lands at a point 63 m down an incline of 35 degrees, What was her speed at take-off
An electric wire that has a mass of 5 kg for a 20m length is strung between two poles 20 m apart. What must be the tension in the wire if it is to take .80 seconds for a pulse to travel along the wire from one pole to the other.
Furthermore, describe any differences in kinetic energy and gravitation potential energy among these balls while they hit the ground.
A sample of air at a temp of 298K has a relative humidity of 10%. If the temp of 1.00L of this air is decreased to 273K, what will the relative humiduty be at the lower temp
Two small frogs simultaneously leap straight up from a lily pad. Frog A leaps with an initial velocity of 0.726 m/s, while frog B leaps with an initial velocity of 1.62 m/s
a 71 kg baseball lplayer jumps straight up to catch a line drive. If the 140 g ball is moving horizontally at 28 m/s and the catch is made when the ball player is at the highest point of his leap what is his speed immediately after stopping the ba..
From what height will you have to drop the rock on Earth so that the fall-time on both planets is the same.
A plane is headed due west with an air speed of 224 m/s. Find the velocity of the plane relative to the earth
The magnetic field at the center of a 1.0-cm-diameter loop is 4.5 mT, What is the current in the loop, At what distance from the wire is the magnetic field 4.5 mT
What is the tangential velocity of a satellite in a circular orbit 300km above the surface of the Earth, How long does the satellite take to complete one orbit
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