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arlik [135]
4 years ago
8

Earths rotation causes day and night cycle. It also causes-

Physics
1 answer:
prohojiy [21]4 years ago
3 0
The earth axis to tilt and orbits the  sun 
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Electric power is to be generated by installing a hydraulic turbine-generator at a site 120 m below the free surface of a large
iogann1982 [59]

Answer:

P = 2234400 Watt

Explanation:

Power generation is given as rate of work done

Here the turbine generator is located at 120 m below the free surface

So here rate of work done is given as rate of potential energy

Power = \frac{dw}{dt}

Power = \frac{mgh}{t}

so we have

Power = (\frac{dm}{dt})gh

now we have

Power = 1900(9.8)(120) = 2234400 Watt

so the power generation potential will be 2234400 Watt

8 0
3 years ago
A car comes to a bridge during a storm and finds the bridge washed out. The driver must get to the other side, so he decides to
Verizon [17]

Answer:29.41 m/s

Explanation:

Given

Height of cliff 22.8 m

Height of river bank=2.4 m

width of river=60.0 m

Car can considered as projectile

Time travel to cover vertical distance=22.8-2.4=20.4 m

h=ut+\frac{at^2}{2}

20.4=0+\frac{gt^2}{2}

t^2=4.163

t=2.04 s

Range=60 m

Let u be the speed of car

ut=60

u=\frac{60}{2.04}=29.41 m/s

4 0
3 years ago
Which one of the following experiments is the justification for the wave theory of light? a. Newton's rings experiment b. Frank-
Lunna [17]

Answer:

c

Explanation:

double alit experiment is for wave theory for light

4 0
4 years ago
Read 2 more answers
If you were sitting on the couch and someone said, “You have no energy.” Would you agree or disagree with this statement
Allisa [31]
I would disagree with that statement.

3 0
3 years ago
Read 2 more answers
A glass rod rubbed with a tissue paper would strip away electrons from the atoms in glass rod. This would acquire positive charg
Gemiola [76]

Answer:

when this charged glass rod is brought towards the metal ball it will acquire a charge opposite to that of charge body brought close to it without touching it but it will acquire the same charge if the charged object touches it

7 0
3 years ago
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