Physics, 13.05.2021 18:10 trujillo03
A student explains that she can measure a well defined frequency for radio waves. Therefore, she says that the wave model accurately predict the behavior of radio waves. What other evidence supports using the wave model but not the particle model to characterize radio waves?
1. They can travel through matter but not through a vacuum
2. The transport energy from one location to another
3. They generated by accelerating charged particles
4. They carry different amounts of energy than other forms of EM waves
Answers: 3
Physics, 21.06.2019 20:50
Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.
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Physics, 22.06.2019 09:00
Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy
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Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)
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Physics, 22.06.2019 22:30
The record distance in the sport of throwing cowpats is 81.1 m. this record toss was set by steve urner of the united states in 1981. assuming the initial launch angle was 45° and neglecting air resistance, answer the following. (a) determine the initial speed of the projectile. m/s
Answers: 2
A student explains that she can measure a well defined frequency for radio waves. Therefore, she say...
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