Physics, 28.06.2019 00:30 SugaAndKookie22
An 8.0newton block is accelerating down a frictionless ramo inclined at 15 degrees to the horizontal. what is the magnitude of the net force causing the blocks acceleration? 1. 0n 2. 2.1n 3. 7.7n 4. 8.0n
Answers: 1
Physics, 22.06.2019 06:00
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.
Answers: 2
Physics, 22.06.2019 12:30
When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)
Answers: 2
Physics, 22.06.2019 16:20
How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit
Answers: 2
Physics, 22.06.2019 19:30
Coal contains energy. a. light b. kinetic c. chemical d. mechanical
Answers: 1
An 8.0newton block is accelerating down a frictionless ramo inclined at 15 degrees to the horizontal...
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