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3 years ago

When a cannon fires a cannonball, the cannon will recoil backward because the?

Physics

1 answer:

ludmilkaskok [199]3 years ago

4 0

For every action there is an equal and opposite reaction. Newton's Third Law of Motion.

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the explorer visited the three places and raised her hand when she reached each of them, where would the change in gravitational

Scorpion4ik [409]

Answer:

the Mariana trench

Explanation:

To perform this calculation we must use the law of universal gravitation

F = G m M / r²

Where the gravitational potential energy is immediately deducted

U = ∫ F dr

U = - G m M (1 / r - 1 / Ro)

In general the point of Ro is taken at infinity so that here the energy is zero

Therefore, for this problem we will use the equation

U = - G m M / r

Let's calculate the distance, for the three requested points

-Ecuador

R = 6370 km (1000 m / 1 km)

R = 6.370 10 6 m

- Mariana Trench

This is 11 km deep

R = 6370 -11 km = 6359 km

R = 6.359 106 m

- The Chimborazo

R = 6384 Km

R = 6.384 10 6 m

We can appreciate that if we introduce these values in the formula, the one that gives the greatest change would be the one with the least distance. Let's calculate it,

- Ecuator

U = - (G mM) / (6.370 106)

U = - (GmM) 1.5699 10-7 J

- mariana trench

U = - (GmM) 1 / 6,359 106

U = - (GmM) 1.5725 10-7 J

- Chimborazo

U = - (GmM) 1 / 6,384 106

U = - (GmM) 1.5664 10 -7 J

Here we can see that the greatest value is that of the Mariana trench

3 0

3 years ago

Read 2 more answers

Which of the following are heterogeneous mixtures (not homogeneous mixtures)?

BARSIC [14]

The following are heterogeneous mixture: MILK THAT IS SOLD AT THE STORE, A CAKE MIX AND MIXED NUT.An heterogeneous mixture is one which contained many parts which can be separated out.A smoothie is an homogeneous mixture because the juice of different fruits that are use can not be separated out.
Read more on Brainly.com - brainly.com/question/4731209#readmore

5 0

3 years ago

Any clue on this one I know it’s not D

inessss [21]

I think it is D because gas particles move the fastest but if not then it is A

5 0

3 years ago

Read 2 more answers

Nerve signals in the body occur when a small voltage, called an action potential, is applied across the membrane of a cell. When

nasty-shy [4]

Answer: 23.56 nV

Explanation:

Assuming that we apply Ohm's Law to this situation, we know that under this condition, the current resultant, is proportional to the voltage applied, and that the proportionality constant, is called the resistance.

Now, we define electric current, as the passage of a number of charges over time.

In this case, we can say that each singly-ionized potassium ion carries the charge equivalent to the one electron, which is q = 1.6. 10⁻¹⁹ coulombs.

So, as we have 90,000 ions, we will have a total charge as follows:

Q =90.10³. 1.6.10⁻¹⁹ coulombs

Also, we are told that this charge will be moving for 1.1 msec, so we can find the current I as follows:

I = Q/t ⇒ I = 13.09. 10⁻¹² A.

If we know that R= 1.8.10⁹ Ω, we can determine V, applying Ohm's Law, as follows:

V = 13.09. 10⁻¹² A . 1.8.10⁹ Ω = 23.56 nV

3 0

3 years ago

Read 2 more answers

By what factor would your weight increase if you could stand on the sun? (never mind that you can't.)