Physics, 27.02.2021 01:30 aubreyfoster
7. Given a displacement vector that is 10 m in magnitude and forms an angle of 30° to the horizontal, determine the displacement in the x-direction and in the y-direction.
Answers: 2
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When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.
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Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2
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Which statement is true if the refractive index of medium a is greater than that of medium b? a. total internal reflection is possible when light travels from air to medium b to medium a. b. total internal reflection is possible when light travels from medium a to medium b. c. total internal reflection is possible when light travels from medium b to medium a. d. total internal reflection is possible when light travels from air to medium a. e. total internal reflection is possible when light travels from air to medium b.
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Physics, 22.06.2019 20:40
Abasketball star covers 2.65 m horizontally in a jump to dunk the ball. his motion through space can be modeled precisely as that of a particle at his center of mass. his center of mass is at elevation 1.02 m when he leaves the floor. it reaches a maximum height of 1.90 m above the floor and is at elevation 0.910 m when he touches down again. (a) determine his time of flight (his "hang time"). (b) determine his horizontal velocity at the instant of takeoff. (c) determine his vertical velocity at the instant of takeoff. (d) determine his takeoff angle. (e) for comparison, determine the hang time of a whitetail deer making a jump with center-of-mass elevations yi = 1.20 m, ymax = 2.45 m, and yf = 0.750 m.
Answers: 1
7. Given a displacement vector that is 10 m in magnitude and forms an angle of 30° to the
horizonta...
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