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kobusy [5.1K]
3 years ago
7

Calculate the average speed of a toy car that travels 20m in 40s

Physics
2 answers:
Roman55 [17]3 years ago
5 0

Answer:

2 per s

Explanation:

divid 40 and 20 it gives you = 2

lesya [120]3 years ago
4 0

Answer:

2m in 4s

Explanation:

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When an atom releases gamma radiation____________.
wel

Answer:

d. the atomic number remains the same.

Explanation:

First at all it's important to know how to read nuclear information

_{Z}^{A}X

X is the atomic symbol, A the mass number and Z the atomic number of the element.

Gamma rays emitted on gamma decay are characterized as _{0}^{0}\gamma

If we write the nuclear equation for the decay, we have that:

_{Z}^{A}X\,\rightarrow{}_{0}^{0}\gamma\,+\,{}_{Z}^{A}Y

The sum of the mass numbers and atomic numbers on the right side has to be equal to the left side numbers of the equation, that means the mass number and the atomic number remains the same for the resulting atom to preserve the equality.

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3 years ago
What is meant by the term fitness​
Artemon [7]

Answer:

An organisms ability to survive and reproduce in a particular environment.

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A swimmer swims at 5 m/s. How long would it take to swim 5 laps of a 50m pool?​
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3 0
1 year ago
if the instantaneous current in the circuit is giveen by I=3 sin theta amperes, the rms value of the current will be
Kisachek [45]

Answer:

I_{rms}=2.12\ A

Explanation:

Given that,

The instantaneous current in the circuit is giveen by :

I=3\sin\theta\ A

We need to find the rms value of the current.

The general equation of current is given by :

I=I_o\sin\theta

It means, I_o=3\ A

We know that,

I_{rms}=\dfrac{I_o}{\sqrt2}\\\\=\dfrac{3}{\sqrt2}\\\\=2.12\ A

So, the rms value of current is 2.12 A.

4 0
3 years ago
During the fission reaction shown, how did the target nucleus change ?
Zarrin [17]

Answer:

A. The target nucleus split into two nuclei, each with fewer nucleons than the original.

Explanation:

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