A proton (mass m = 1.67 x 10-27 kg) is being accelerated along a straight line at 2.80 x 10¹2 m/s² in a machine. If the proton has an initial speed of 2.90 x 106 m/s and travels 3.70 cm, what then is (a) its speed and (b) the increase in its kinetic energy?

A proton (mass m = 1.67 x 10-27 kg) is being accelerated along a straight line at 2.80 x 10¹2 m/s² in a machine. If the proton has an initial speed of 2.90 x 106 m/s and travels 3.70 cm, what then is (a) its speed and (b) the increase in its kinetic energy?

Name: A proton (mass m = 1.67 × 10-27 kg) is being accelerated along a stra
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Description: A proton (mass m = 1.67 × 10-27 kg) is being accelerated along a straight line at 2.80 × 10¹2 m/s² in a machine. Ifthe proton has an initial speed of 2.90 x 106 m/s and travels 3.70 cm, what then is (a) its speed and (b) theincrease in its kinetic e

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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If a particle is moving, it has kinetic energy. Kinetic energy is the energy of motion, and it depends on the speed and mass of the particle. It is given by the formula Ek = 1/2*mv2, where Ek is the kinetic energy, m is the mass, and v is the speed of the particle. The formula for kinetic energy has some important features to keep in mind. Kinetic energy, and every other type of energy as well, is a scalar quantity, given by only a single number. Energy does not have a "direction", unlike a vector quantity. (This is in contrast to the vector quantity momentum, which you might have already studied.) Kinetic energy, in particular, is always a positive number. (Note the speed v is the magnitude of the vector velocity, and therefore is positive. But even if it were a negative number, squaring it would always lead to a positive result.) Kinetic energy depends on the square of the speed. (This is in contrast to the magnitude of momentum, mv, a quantity you may have already studied, which…