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3 years ago

If you wanted to increase the gravitational force between two objects ,what would you do?

2 answers:

5 0

The correct answer to the question is by increasing their masses, or by decreasing the separation distance between them.

EXPLANATION:

Let us consider two bodies having masses M and M' respectively . The two bodies are separated from their centre of masses by a distance of R.

As per Newton's law of gravitation, the two bodies will exert gravitational force on one another. The gravitational force produced between them is calculated as -

Gravitational force $F=\ G\frac{MM'}{R^2}$

Here, G is the gravitational force constant.

From above, we see that the gravitational force is directly proportional to the product of masses of two bodies and inversely proportional to the square of separation distance between them.

Hence, the gravitational force between two objects can be increased by increasing their masses, or by decreasing the distance between them.

attashe74 [19]3 years ago

4 0

You could bring the objects closer together because the force of gravity increases as the distance decreases. Also, if you can, you can increase the mass of one or both of the objects.

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Which of these could NOT be a measurement of speed? A. 5 km/h B. 3 mm/s C. 2.5 days/mi D. 15,600 cm/min

scoundrel [369]

Answer:

C. 2.5 days/mi

Explanation:

Speed is defined as the distance covered by an object divided by the time taken to cover that distance:

$v=\frac{S}{t}$

where

S is the distance covered

t is the time taken

At the numerator of the fraction, we have distance, which is a lenght. Lenght is measured in different possible units: meters (m), kilometer (km), mile (mi), centimeter (cm)...

At the denominator, we have a time, which can be measured in seconds (s), minutes (min), hours (h), days..

According to this, we can see that option

C. 2.5 days/mi

cannot represent a speed. In fact, at the numeratore we have days (which is a measure of time), while at the denominator we have mile (which is a measure of length), so in this fraction distance and time are inverted, therefore this cannot be a measurement of a speed.

6 0

3 years ago

Read 2 more answers

Jupiter is 318 times more massive than Earth. Based upon mass alone (i.e, if you were to place Jupiter at the same distance from

GuDViN [60]

Answer:

318 Earth-pull

Explanation:

Using Newton's law of gravitational force

F = GMm / r²

F is directly proportional to mass

let earth = m

then m .......... Earth-pull

318 m = 318 m × Earth-pull / m = 318 Earth-pull

7 0

4 years ago

The formula h = -16t squared + 64t squared gives the height, h, and time, t, of an object launched from the ground with a speed

padilas [110]

Answer:

Details in the explanation

Explanation:

Vertical Launch

When an object is thrown vertically in free air (no friction), it moves upwards at its maximum speed while the acceleration of gravity starts to brake it. At a given time and height, the object stops in mid-air and starts to fall back to the launching point until reaching it with the same speed it was launched.

We are given an expression for the height of an object in function of time t

$h = -16t^2 + 64t$