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tekilochka [14]
3 years ago
6

The atomic mass of carbon-13 is 13. It has six protons. How many neutrons does this isotope have? 6 7 13 19

Physics
1 answer:
nignag [31]3 years ago
3 0
Number of neutrons = atomic mass - number of protons
= 13 - 6 = 7

In short, Your Answer would be Option B

Hope this helps!
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What is the force that opposes motion and works against the downward pull? A) friction B) gravity C) weight D) acceleration
charle [14.2K]
I'm not entirely sure, but I believe it is A Friction. because gravity pulls down, weight isn't a force, and acceleration doesn't oppose motion
6 0
4 years ago
An Olympic runner complete the 200 m sprint and 23 seconds. What is the runners average speed (round your answer to the nearest
kipiarov [429]
Should be 8.7 m/s. Just divide 200 by 23 and round from there.
3 0
3 years ago
A parallel circuit is constructed with three different branches. An ammeter is placed in each of the branches to measure the bra
neonofarm [45]

Answer:

Current in the battery will be 11.7 A

Explanation:

We have given that the there is parallel circuit with three different branches.

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We have to find the current I in the battery

It is known that in parallel circuit current is sum of current in each branches

So current in the battery will be equal to

I=I_1+I_2+I_3

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Therefore current in the battery will be 11.7 A

8 0
3 years ago
SOH-CAH-TOA is used to solve for the ________
Misha Larkins [42]

Answer:

c. initial (x and y)

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Therefore, we will have to make use of trigonometric ratios which is also known by the mnemonic "SOH CAH TOA"

Thus, this method resolves the initial x and y velocities.

3 0
3 years ago
An electric current flows out of the page. What is the direction of the magnetic field?
Mademuasel [1]

<span>When the electric current flows out of the page and the direction of the magnetic field is counter-clockwise. The magnetic field that is made by an electric current is said to be always leaning perpendicularly to the direction of the current flow.</span>

3 0
4 years ago
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