Why do sound waves move faster through the ground than through the air? a. particles of matter are packed more loosely in the ground than in the air. b. particles of matter are packed more tightly in the ground than in the air. c. air doesn’t contain any particles of matter to transmit sound waves. d. the elevation of the ground is lower than the elevation of the air space.
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Physics, 21.06.2019 18:30
An experiment is designed to test the relationship between the initial height of a basketball before it is dropped to the height of its rebound bounce. the height of the rebound bounce is measured using a scale positioned behind the ball. in the above experiment, which condition would not be controlled? a). the starting height of the ballb). the surface the ball bounces on c). the type of ball d). the method to measure the rebound height of the ball
Answers: 1
Physics, 22.06.2019 07:50
Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).
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Physics, 22.06.2019 12:00
Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.
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Physics, 22.06.2019 14:30
Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)
Answers: 1
Why do sound waves move faster through the ground than through the air? a. particles of matter are...
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