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Ellen and Angela each have a mass of 45 kg, and they are moving together with a speed of 10.0 m/s.
1. What is their combined kinetic energy?
2. What is the ratio of their combined mass to Ellen’s mass?
3. What is the ratio of their combined kinetic energy to Ellen’s kinetic energy? Describe.
An average force of 201 N is exerted to draw the string back 1.3 m. unless otherwise directed, imagine that air resistance is negligible. Illustrate energy bar graphs to solve the difficulty .
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Light of wavelength 730 nm illuminates a pair of slits separated by 0.200 mm. determine the distance between the first and second dark fringes
A 5cm radius sphere is filled with a uniform volume charge with charge density 2.3\times10-6C/m3, Calculate the electric flux out of the surface of the cube
A long wire lying along the x-axiscarries a current of 4.00 A in the +x direction. There is a uniformmagnetic field present, given by B=0.003i +0.004j + 0.002k, wherei, j, k are theunit vectors along the cartesian coordinate axes') in units of Tes..
an electron that has a velocity with x component 2.9 x 106 ms and y component 3.7 x 106 ms moves through a uniform
You throw a ball with a speed of 25.0m/s at an angle of 40degrees above the horizontal directly toward a wall. The wall is22.0m from the release point of the ball. How long does the ball take to reach the wall
A 354.7 gram rubber ball is dropped from a height of 26.17 meter and undergoes a perfectly elastic collision with the earth. Find what is the earth speed after the collision
Medical technicians use small centrifuges to isolate blood cells. How far are the test tubes from the rotation axis
(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 12.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mole. (b) Imagine adding electrons to the pin until the negative charge h..
Two toy locomotives approach each other along the same line, and upon collision both stop dead still. What is the mass of the slower locomotive
you are preparing for a 5-day backpacking trip where you plan to use a gasoline cook stove for about 30 min each
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