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larisa86 [58]
4 years ago
9

What does the term calorie refer to

Physics
1 answer:
OLga [1]4 years ago
6 0
Hey there,
<span>It means- the amount of energy required to raise the temperature of a liter of water one degree centigrade at sea level
</span>
Hope this helps :))

~Top
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A physics demo launches a ball horizontally while dropping a second ball vertically at exactly the same time. 1) which ball hits
Simora [160]

Answer:

Both balls will hit the ground at the same time

Explanation:

The factor which leads to ball falling is the gravity acting on the ball;

The motions along the path of both balls are independent and both balls will obey the following illustration

Using the third equation of motion

s = ut + ½at²

Where s = distance covered by both balls.

u = initial velocity of both balls. Since both balls start from rest, u = 0m/s

a = acceleration; and it's equal to acceleration due to gravity.

a = g

By substituton

s = 0 * t + ½gt²

s = 0 + ½gt²

s = ½gt²

Make t the subject of formula

gt² = 2s

t² = 2s/g

t = ±√(2s/g)

But time can't be less than 0 (in other words, negative)

So,

t = √(2s/g)

It'll take both balls √(2s/g) time to hit the floor

6 0
3 years ago
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The chart lists the masses of four planets.
notka56 [123]

Answer:

I didn't understand that all please tell me in Russia

4 0
3 years ago
The radius of the earth's very nearly circular orbit around the sun is 1.5×1011m. find the magnitude of the earth's velocity. as
Luden [163]
<span>Step 1 of 3 Calculate the magnitude of the earth’s velocity. The radius of earth orbit around the sun is . Time taken to complete one revolution is . Convert time from days into seconds. The expression for magnitude of earth velocity is, Substitute for , for . Further solved, Explanation | Common mistakes | Hint for next step Time taken to complete one resolution is 365 days. Convert time from days into seconds. Radius of earth orbit around the sun is given. Velocity is circumference of orbit upon time taken in one resolution. Calculate the magnitude of earth velocity. Change unit of velocity to Step 2 of 3</span>
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A girl is riding her bike and coasting down a hill. When she gets to the bottom of the hill, her bike continues to move without
ddd [48]

Answer:

Her bike is using kinetic energy

B

Explanation:

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3 years ago
Why do people use the scientific method?
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Hopefully this helped.
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4 years ago
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