Physics, 07.09.2020 21:01 gracekerleyy
A teacher has a round flask with holes in it. As she pushes down the water comes out of the holes. Explain why, she repeats the experiment with a flask with no holes. What will happen? Why?
Answers: 3
Physics, 21.06.2019 23:30
In order for the bug to fly through the air a force has to push the bug forward. identify this force. how does the bug produce
Answers: 1
Physics, 22.06.2019 06:00
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t Ο where l is the length of the string, t is its tension, and Ο is its linear density.β (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and Ο are constant) (ii) the tension (when l and Ο are constant) (iii) the linear density (when l and t are constant) (b) the pitch of a note (how high or low the note sounds) is determined by the frequency f. (the higher the frequency, the higher the pitch.) use the signs of the derivatives in part (a) to determine what happens to the pitch of a note for the following. (i) when the effective length of a string is decreased by placing a finger on the string so a shorter portion of the string vibrates df dl 0 and l is β f is β (ii) when the tension is increased by turning a tuning peg df dt 0 and t is β f is β (iii) when the linear density is increased by switching to another string df dΟ 0 and Ο is β f is β
Answers: 3
Physics, 22.06.2019 23:10
Ablue car pulls away from a red stop-light just after it has turned green with a constant acceleration of 0.5 m/s 2 . a green car arrives at the position of the stop-light 6.5 s after the light had turned green. if t = 0 when the light turns green, at what time does the green car catch the blue car if the green car maintains the slowest constant speed necessary to catch up to the blue car? answer in units of s.
Answers: 1
Physics, 23.06.2019 02:00
How many electrons does each element require in its valence shell to become stable?
Answers: 1
A teacher has a round flask with holes in it. As she pushes down the water comes out of the holes. E...
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