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4 years ago

Give some examples of why it is important to understand how ocean currents flow

Physics

1 answer:

lawyer [7]4 years ago

3 0

Explanation:

Winds, water density, and tides all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth's rotation results in the Coriolis Effect which also influences ocean currents

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A raindrop has a mass of 7.7 × 10-7 kg and is falling near the surface of the earth. Calculate the magnitude of the gravitationa

goldfiish [28.3K]

Given that the mass of the raindrop is

$m=7.7\times10^{-7}\text{ kg}$

The acceleration due to gravity is g = 9.81 m/s^2

We have to find

(a) Magnitude of the gravitational force exerted on the raindrop by earth

(b)Magnitude of the gravitational force exerted on the earth by the raindrop

(a) The formula to calculate the magnitude of the gravitational force exerted on the raindrop by the earth is

$F=mg$

Substituting the values, the gravitational force exerted on the raindrop by the earth is

$\begin{gathered} F=7.7\times10^{-7}\times9.81 \\ =7.55\times10^{-6}\text{ N} \end{gathered}$

(b) According to Newton's third law,

If F' is the gravitational force exerted on the earth by the raindrop, then

$F=-F^{\prime}$

Here, the negative sign indicates that both forces act in opposite direction.

The gravitational force exerted on the earth by the raindrop is

$F^{\prime}\text{ = -7.55}\times10^{-6}\text{ N}$

And the magnitude of the gravitational force exerted on the earth by the raindrop is

$7.55\times10^{-6}\text{ N}$

Thus, the magnitude of both forces is equal.

5 0

1 year ago

Determine the mass of the load hanging on the spring with a stiffness of 200 N / m if the extension of the spring is 0.5 cm

dexar [7]

P. E=mgh

P. E=200

200=m x 10 X 0.005

200=m x 0.05

200/0.05=m

4000Kg=m

Hope it helps.......

7 0

4 years ago

In order to be considered an ion, an atom must have a

Andre45 [30]

Positive or negative charge (because an atom becomes an ion when it loses or gains electrons, changing the neutral charge)

4 0

3 years ago

What does the 2 mean in the formula 5Mg3(PO4)2?

anastassius [24]

Answer: There is two (PO4) in the formula

Explanation:

Just be aware of the difference between numbers to the right and left: 5Mg3 means there are a total of 5 Mg (if 3 is a number in the bottom left) the 3 in (PO4) means there are 3 PO4 but because of the 2 it could mean there are 6.

Depends if the elements are separated

8 0

3 years ago

When light passes from a slower medium into a faster medium, which of the following explains what will occur?

spayn [35]

Answer:

Explanation:

6 0

3 years ago

Read 2 more answers