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alexdok [17]
4 years ago
15

What kind of simple machine is a catapult?

Physics
1 answer:
jok3333 [9.3K]4 years ago
7 0
A LEVER is one type of simple machine.
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If carbon has an atomic number of 6, how many protons and neutrons are found in the carbon-14 atom? A.
Alex Ar [27]
The correct answer is B. 6 protons and 8 neutrons

Carbon-14 has same atomic number of 6. It has a nucleon number of 14
Atomic number = proton number = 6
Neutron number = nucleon number - atomic number = 14 - 6 = 8

Hope it helped!
5 0
4 years ago
How are mixtures essential to living and non living things on earth?
sertanlavr [38]
Let's mention 2 examples of a mixture:

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2) ocean water! it's also a mixture and it covers a great portion of the Earth.
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4 years ago
Different forces were applied to five balls, and each force was applied for the same amount of time. The data is in the table. A
Annette [7]

The magnitude of impulse on Ball A will become twice (doubles). Hence, option (c) is correct.

Impulse:

The effect of applied force acting for a very small interval of time is known as Impulse.

Given data:

The initial magnitude of the force on Ball A is, F = 50 N.

The time interval for the applied force on Ball A is, t = 1.25 s.

And the impulse at initial on ball A is, I = 62.5 N-s.

Now, if force on ball A doubles, which means new magnitude of force is,

F' = 2F

F' = 2 × 50

F' = 100 N

For same time interval, the new impulse on Ball A is given as,

I' = F' × t

Solving as,

I' = 100 × 1.25

I' = 125 N-s

Taking the ratio of both the impulses as,

I' / I = 125/62.5

I' = 2 I

Thus, we can conclude that the magnitude of impulse on Ball A will become twice (doubles). Hence, option (c) is correct.

Learn more about the impulse here:

brainly.com/question/904448

7 0
3 years ago
what are the two angles of a projection of a projectile moving with the velocity is 20m/s. so that the horizontal range is 45m​
GREYUIT [131]

Answer:

Answer. So, the two Angles R :- 15° and 75° .

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3 years ago
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