3 years ago

What does fossil fuels do?

2 answers:

8 0

Fossil fuel are collected and turned into oils like car gas and many other products have fossil fuels in them and we don't even realize it idk oil was made out of fossils till i studied fossils in class Hope this helps:)

scoray [572]3 years ago

7 0

Fossil fuels are collected to be turned into sevral things like car oil

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kifflom [539]

Answer:

I’m pretty sure it’s D

Explanation:

the crust breaks and shifts when that happens

hope dis helps ^-^

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3 years ago

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What is the period of a wave that travels through a spring at 2.5 m/s and has a wavelength of 3m ?

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Answer:

Explanation:

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3 years ago

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konstantin123 [22]

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You are playing ice hockey with friends on a frozen pond. The hockey puck (mass 0.2 kg) is sliding on the ice at 10 m/s when it

chubhunter [2.5K]

Answer:

The mass of the hailstone is $m_2 = 0.05$

Explanation:

From the question we are told that

The mass of the hockey puck is $m_1 = 0.2 \ kg$

The initial speed of the puck is $u_1 = 10 \ m/s$

The final speed of the puck is $v_f = 8 \ m/s$

According to the principles of linear momentum

$m_1u_1 + m_2u_2 = (m_1 + m_2)v_f$

At initial the velocity of the hailstone was zero so

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3 years ago

You weigh 680 N.

Alchen [17]

Answer:

132.22 N

Explanation:

Weight at the surface of a planet is:

W = GMm / r²

where G is the gravitational constant,

M is the mass of the planet,

m is the mass of the object,

and r is the radius of the planet.

On Earth:

680 N = GMm / r²

If Earth's mass and radius were changed:

W = G (7M) m / (6r)²

W = 7/36 GMm / r²

W = 7/36 (680 N)

W = 132.22 N

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3 years ago