21. An electron is accelerated to ten percent of the speed of electromagnetic radiation in a vacuum. As a result, the effective mass of the electron will: Increase by 10 %. Decrease by 0.5 % C Increase by 0.5 % D A Be unaffected. 22. Which of the following statements is a consequence of Kepler's second law? *A Each planet moves in an elliptical path round the Sun and the sun is at one of its focal points. B The speed of a planet increases as it approaches the Sun and decreases as it moves away from the Sun. C The radius vector joining the Sun to any planet rotates with a constant angular speed about the Sun as the planet orbits the sun. D The radius vector joining the planet to the Sun sweeps out equal volumes per unit time as the planet orbits the Sun.
21. An electron is accelerated to ten percent of the speed of electromagnetic radiation in a vacuum. As a result, the effective mass of the electron will: Increase by 10 %. Decrease by 0.5 % C Increase by 0.5 % D A Be unaffected. 22. Which of the following statements is a consequence of Kepler's second law? *A Each planet moves in an elliptical path round the Sun and the sun is at one of its focal points. B The speed of a planet increases as it approaches the Sun and decreases as it moves away from the Sun. C The radius vector joining the Sun to any planet rotates with a constant angular speed about the Sun as the planet orbits the sun. D The radius vector joining the planet to the Sun sweeps out equal volumes per unit time as the planet orbits the Sun.
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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Answer question 21, 22 showing fully all the steps. Solution should be simplified and easy to understand as much as possible!
Transcribed Image Text:21. An electron is accelerated to ten percent of the spced
of electromagnetic radiation in a vacuum. As a result,
the effective mass of the electron will:
A
Increase by 10 %.
B
Decrease by 0.5 %
C Increase by 0.5 %
D
Be unaffected.
22. Which of the following statements is a consequence of
Kepler's second law?
*A Each planet moves in an elliptical path round the
Sun and the sun is at one of its focal points.
B The speed of a planet increases as it approaches the
Sun and decreases as it moves away from the Sun.
C The radius vector joining the Sun to any planet
rotates with a constant angular speed about the Sun
as the planet orbits the sun.
D The radius vector joining the planet to the Sun
sweeps out equal volumes per unit time as the
planet orbits the Sun.
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