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Bess [88]
3 years ago
14

In order for rejuvenation to take place in a stream, what must occur first?

Physics
1 answer:
Reil [10]3 years ago
7 0
The land over the stream flows must uplift - Rejuvenation is the process by which a stream r<span>enews its activity, erosive power, etc. by the uplift or  removal of a barrier in the stream's bed. This lowers the base level of the stream and it so that it can begin its downward erosion again.</span>
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A clarinetist, setting out for a performance, grabs his 3.070 kg clarinet case (including the clarinet) from the top of the pian
Cerrena [4.2K]

Answer:

the vertical acceleration of the case is 1.46 m/s

Explanation:

Given;

mass of the clarinet case, m = 3.07 kg

upward force applied by the man, F = 25.60 N

Apply Newton's second law of motion;

the upward force on the clarinet case = its weight acting downwards + downward force due to its downward accelaration

F = mg + m(-a)

the acceleration is negative due to downward motion from the top of the piano.

F = mg - ma

ma = mg - F

a = \frac{mg - F}{m} \\\\a = \frac{(3.07 \times 9.8) \ - \ 25.6}{3.07} \\\\a = 1.46 \ m/s^2

Therefore, the vertical acceleration of the case is 1.46 m/s²

4 0
3 years ago
An object travels with velocity v = 4.0 meters/second and it makes an angle of 60.0° with the positive direction of the y-axis.
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Vx=cos60(4)
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3 years ago
The peak luminosity of a white dwarf supernova is around 1010 Lsun, and it remains brighter than 108 Lsun for about 150 days. In
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Answer:

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Gravity if I’m not mistaken
7 0
3 years ago
Read 2 more answers
Determine the acceleration due to gravity?
MissTica
That's a weird graph, but judging from the units the acceleration is the slope of the graph.

a = (0.8 - 0.3)/(0.16 - 0.055) = 4.76 m/s²
8 0
3 years ago
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