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nekit [7.7K]
2 years ago
7

The “Big Bang” is an example of what type of scientific statement? A. A law B.a hypothesis C. A theory D. An equation

Physics
2 answers:
Andrej [43]2 years ago
7 0
C. Theory. It’s called the Big Bang theory for a reason
Ugo [173]2 years ago
6 0

Answer:

theory

Explanation:

that's why it's called the Big Bang Theory

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II Force on a tennis ball. The record speed for a tennis ball that is served is 73.14 m/s. During a serve, the ball typically st
AveGali [126]

Answer:

F=248.5W N

Explanation:

Newton's 2nd Law tells us that F=ma. We will use their averages always. The average acceleration the tennis ball experimented is, by definition:

a=\frac{\Delta x}{\Delta t}=\frac{v-v_0}{t-t_0}

Since we start counting at 0s and the ball departs from rest, this is just a=\frac{v}{t}

So we can write:

F=ma=\frac{mv}{t}=\frac{gmv}{gt}

Where in the last step we have just multiplied and divided by g, the acceleration of gravity. This allows us to introduce the weight of the ball W since W=gm, so we have:

F=\frac{Wv}{gt}=\frac{v}{gt}W

Substituting our values:

F=\frac{(73.14m/s)}{(9.81m/s^2)(30\times10^{-3}s)}W=248.5W N

Where the average force exerted has been written it terms of the tennis ball's weight W.

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2 years ago
Fruits and vegetables should take up half you plate at a meal.<br> A. <br> True<br> B. <br> False
umka21 [38]

Answer:

A. true

Explanation:

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What is a description of compounds?
elena-14-01-66 [18.8K]
Compounds are elements that are chemically combined, like water for example (it’s both hydrogen and oxygen.)
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What is the mass, in kg, of a 136 pound gymnast on Earth?
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61.6886 kg

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An electric heater rated 500 W operates 24 hours/ day. what is the cost of energy to operate it for 20 days at Rs. 2.00 per kWh
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Answer:

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