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2 years ago

What causes tides on earth

1 answer:

7 0

Gravity is one major force that creates tides. In 1687, Sir Isaac Newton explained that ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth (Sumich, J.L., 1996). Tidal forces are based on the gravitational attractive force.

You might be interested in

Which occupies mrs space, 3m cubed or 100ft cubed

Slav-nsk [51]

The question is somewhat ambiguous.

-- It's hard to tell whether it's asking about '3 cubic meters'
or (3m)³ which is actually 27 cubic meters.

-- It's hard to tell whether it's asking about '100 cubic feet'
or (100 ft)³ which is actually 1 million cubic feet.

I'm going to make an assumption, and then proceed to
answer the question that I have invented.
I'm going to assume that the question is referring to
'three cubic meters' and 'one hundred cubic feet' .

OK. We'll obviously need to convert some units here.
I've decided to convert the meters into feet.

For 1 meter, I always use 3.28084 feet.

Then (1 meter)³ = 1 cubic meter = (3.28084 ft)³ = 35.31 cubic feet.

So 3 cubic meters = (3 x 35.31 cubic feet) = 105.9 cubic feet.

That's more volume than 100 cubic feet.

6 0

2 years ago

2. A car is moving south. It is getting faster. In which direction is the acceleration?

notka56 [123]

South it is the same direction the car is already moving

7 0

2 years ago

On a day when the temperature reaches 50°F, the temperature in degrees Celsius is: 20°C

anzhelika [568]

Answer:

10°C

Explanation:

To convert °F to °C, we use the formula:

°C = (°F - 32) * ( 5/9)

So, to convert 50°F to the equivalent in °C, we can proceed as follows:

°C = ( 50 - 32 ) * (5/9)

°C = ( 18 ) * (5/9), which is, approximately,

°C = 9.999999999... ≈ 10 (5/9 ≈0.555555...)

So, 50°F is equivalent to 10°C.

3 0

2 years ago

If two opposing forces are equal, then the net force is 0 N. true or false?

Fofino [41]

Answer:

false

Explanation:

6 0

2 years ago

Why does a hot-air balloon rise?

prohojiy [21]

Answer: The weight of the air displaced by the balloon is less than the volume of the balloon.

Explanation:

A hot air balloon is a cloth wrap that contains several thousand cubic meters of air inside (a large volume of air). The burner heats the liquid propane to a gaseous state to generate a huge flame, which can reach more than 3 meters, thus heating the air mass inside the balloon. In this way, its density is modified with respect to the air that surrounds it, because the hot air is lighter than the outside air (less dense), causing the balloon to rise and float.

Now, if we know that the density of a body $d$ is directly proportional to its mass $m$ and inversely proportional to its volume $V$ :

$d=\frac{m}{V}$

We can deduce that by increasing the volume of the body, its density will decrease.

This is proof of Archimedes' Principle:

A body totally or partially immersed in a fluid at rest, experiences a vertical upward thrust equal to the mass weight of the body volume that is displaced.

In this case the fluid is the air outside. So, the warm air inside the balloon, being less dense, will weigh less than the outside air and therefore will receive an upward pushing force or thrust that will make the balloon ascend.

4 0

3 years ago