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wlad13 [49]
3 years ago
10

In order to take advantage of wave power, water must always come in direct contact with the blade of a turbine to generate elect

ricity.
a. True
b. False
Physics
1 answer:
alina1380 [7]3 years ago
4 0

Answer:

false

Explanation:

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Explain why Earth is not a perfect sphere?
Nesterboy [21]

Answer:

Hi ,

It's caused by force act by earth when it rotates

8 0
3 years ago
When there are two light sources then there will be two shadows. Given below is a case where there are two light sources but one
velikii [3]

neither, a shadow cant be darker unless your closer to the surface your pointing the light at.

3 0
3 years ago
A lamp has a current of 2.17 A. In hours, how long does it take for 1 mole of electrons to pass through the lamp?
Gennadij [26K]

<u>Answer:</u> The amount of time needed for 1 mole of electrons to pass through the lamp is 12.33 hrs.

<u>Explanation:</u>

We are given:

Moles of electron = 1 mole

According to mole concept:

1 mole of an atom contains 6.022\times 10^{23} number of particles.

We know that:

Charge on 1 electron = 1.6\times 10^{-19}C

Charge on 1 mole of electrons = 1.6\times 10^{-19}\times 6.022\times 10^{23}=9.6352\times 10^4C

To calculate the time required, we use the equation:

I=\frac{q}{t}

where,

I = current passed = 2.17 A

q = total charge = 9.6352\times 10^4C

t = time required = ?

Putting values in above equation, we get:

2.17A=\frac{9.6352\times 10^4C}{t}\\\\t=\frac{9.6352\times 10^4C}{2.17A}=44402s

Converting this into hours, we use the conversion factor:

1 hr = 3600 seconds

So, 44402s\times \frac{1hr}{3600s}=12.33hr

Hence, the amount of time needed for 1 mole of electrons to pass through the lamp is 12.33 hrs.

3 0
3 years ago
Calculate the acceleration of a bus that speed up from 20ms-1 to 40ms-1 in 8 seconds?​
Anastaziya [24]

Answer:

2.5 ms^-2

Explanation:

acceleration

= (final velocity - initial velocity)/time

= [(40m/s) - (20m/s)]/8s

= (20m/s)/8s

= 5/2 m/s²

= 2.5 m/s²

= 2.5 ms^-2

3 0
3 years ago
The _____ theory proposes that the moon was a passing asteroid pulled into orbit by Earth's gravity.
Debora [2.8K]
It's the capture theory.
3 0
4 years ago
Read 2 more answers
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