3 years ago

The biggest reason that some fuels are considered nonrenewable

1 answer:

4 0

Because many fuels are fossil fuels they take millions of years to form and the known reserves are being used much faster than the new ones being made

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An electric Kettle is rated at 25 W. Calculate the quantity of heat generated in 2s

MatroZZZ [7]

Answer:

Energy consumed by the electric kettle in 9.5 min =Pt=(2.5×10

)×(9.5×60)=14.25×10

Energy usefully consumed =msΔT=3×(4.2×10

)×(100−15)=10.71×10

where s=4.2J/g

C= specific heat of water and boiling point temp=100

Heat lost =14.25×10

−10.71×10

=3.54×10

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3 years ago

What is the momentum of a 1550kg car that is traveling 38.0 m/s?

konstantin123 [22]

Answer:

p = 58,900 kg m/s

Explanation:

p = m × v

p = 1,550 × 38.0

p = 58,900 kg m/s

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3 years ago

Two charges of equal magnitude Q are held a distance d apart. Consider only points on the line passing through both charges.For

Burka [1]

Answer:

Explanation:

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3 years ago

Which of the following cabinet departments protests us from terrorist attacks?

MariettaO [177]

Answer: A

Explanation:

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3 years ago

A 600 N force acts on an object with a mass of 50 kg. What is the resulting acceleration of the object?

DochEvi [55]

Answer:

<h3>The answer is 12 m/s²</h3>

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

$a = \frac{f}{m} \\$

f is the force

m is the mass

From the question we have

$a = \frac{600}{50} = \frac{60}{5} \\$

We have the final answer as

Hope this helps you

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3 years ago