3 years ago

What is one type of renewable energy source?

Physics

2 answers:

Diano4ka-milaya [45]3 years ago

8 0

Currently are :
Solar energy. Wind energy. Hydro energy. Tidal energy.

erik [133]3 years ago

6 0

Answer:

Solar energy

Explanation:

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Which do waves transfer

nikitadnepr [17]

They transfer energy. Not sure what your choices are but this is a common question

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3 years ago

A person rolls a barrel up an inclined plane with a length of 6m and a height of 3m/ How much force is needed to roll up the bar

snow_lady [41]

Answer:

Length (l) = 6 m

height (h) = 3 m

Load(L) = 500 N

Effort (E) = ?

we know the principal that

E * l = L * h

6 E = 500 * 3

6E = 1500

E = 250

therefore 250 N work is done on the barrel.

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4 years ago

What causes fusion to stop within all stars?

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3 years ago

A cat pushes a mouse horizontally on a frictionless floor with a net force of 1.0 N 1.0N1, point, 0, start text, N, end text for

vesna_86 [32]

Answer: 3

Explanation:

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3 years ago

If a 0.75 efficient motor produces 150 W of useful power, what was the input power? *

vlada-n [284]

Answer:

<em>The input power is 200 W</em>

Explanation:

<u>Motor Efficiency</u>

The efficiency of a motor can be calculated as follows:

$\displaystyle \beta=\frac{P_o}{P_i}$

Where:

β = efficiency

Po = Output power

Pi = Input power

Solving for Pi:

$\displaystyle P_i=\frac{P_o}{\beta}$

The efficiency is β=0.75 and the output power is Po=150 W, thus the input power is:

$\displaystyle P_i=\frac{150}{0.75}$

$P_i=200 \ W$

The input power is 200 W

4 0

3 years ago