# Gravitational force between two objects depends on

**Answer:**

SIZE AND DISTANCE BETWEEN THEM

## Related Questions

a = F/m

a' = F/3m

a'/a = 1/3

Based on this, the correct answer would be option A.

1/3 as much the single Hope this helps.Shearing

The stress force that causes a mass of rock to pull or twist in opposite directions is called shearing.

Hope this helps! :)

F = 49N

I Took The Test!

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. How much work in joules is done by a person who uses a force of 25 N to move a desk 3.0 m?

here, F = 25 N

s = 3 m

Substitute it into the expression,

W = 25 * 3

W = 75 Joule

**So, your final answer is 75 J**

Hope this helps!

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A net force of 125 N accelerates a 25.0 kg mass. What is the resulting acceleration?

Answer:

Explanation:

The acceleration of an object can be calculated by using Newton's second law:

where

F is the net force applied on the object

m is the mass of the object

a is its acceleration

In this problem, we have F=125 N and m=25.0 kg, so we can rearrange the equation to calculate the acceleration:

When a falling object reaches terminal velocity, the net force acting on it is

There are 2 ways of solving this question

First is to use formula which connects starting speed, acceleration (which we would calculate from graph where we can see how speed changes) and time to calculate traveled distance.

S = V0 * t + 1/2*a*t^2

acceleration a is a = -4m/s^2

S(t=3s) = 18

On this value we add 12 initial meters of distance and we get S(t=3s) = 30 meters

For t=4s we get

S = 16 m

Plus initial distance of 12 m we get 30 meters

Answers are 30 and 28 meters.

------------------------------------------

second way is to find surface of graph bellow speed line for 3 and 4 seconds...

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Force times Mass equals Acceleration.

**The answer is TRUE.**

If the mass increases the number on the left side of the equation increases, thus increasing the right side as well.

Does centripetal force change in uniform circular motion?

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A 521-kg meteor is subject to a force of 2520 N. What is its acceleration?

**Answer:**

Acceleration,

**Explanation:**

It is given that,

Mass of the meteor, m = 521 kg

Force acting on the meteor, F = 2520 N

Let a is the acceleration of the meteor. It can be calculated using the Newton's second law of motion. According to this law the force acting on an object is equal to the product of mass and acceleration with which it is moving. Mathematically, it is given by :

**So, the acceleration of the meteor is . Hence, this is the required solution.**

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cosΘ = 0.666

Θ = ± 48º

Vertically:

150g*sin150 + 220g*sin270 + 195g*sinΘ = 0

sinΘ = 0.744

Θ = 48º

**Answer:**

B. Greater energy

**Explanation:**

Fast moving water is very energetic as its can displace very large rocks, boulders and make pebbles and sand out of them through the process r erosion. Fast moving water have kinetic energy, it opposes anything that come in its way. As river make its own channel by eroding plane. Many antecedent rivers have make their channel by cutting large mountains too.

**Answer:**

**Explanation:**

The gravitation force of attraction between the two bodies is directly proportional tp the product of masses of two bodies and inversely proportional to the square of distance between them.

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Work is equal to _____. force times size velocity times force distance times force

**Answer : The correct option is, distance times force**

**Explanation :**

**Work **: It is defined as the force acting on an object to cause a displacement. Or we can defined as the work is equal to the product of the force of an object and displacement of an object.

**The formula of the work is written as,**

where,

W = work done

F = force applied on an object

d = displacement of an object

**Hence, the work is equal to distance times force.**

The role of the criterion: Perhaps the simplest strategy that the doctor can adopt is to pick a criterion location along the internal response axis. Whenever the internal response is greater than this criterion they respond "yes". Whenever the internal response is less than this criterion they respond "no".

An example criterion is indicated by the vertical lines in Figure 2. The criterion line divides the graph into four sections that correspond to: hits, misses, false alarms, and correct rejections. On both hits and false alarms, the internal response is greater than the criterion, because the doctor is responding "yes''. Hits correspond to signal-plus-noise trials when the internal response is greater than criterion, as indicated in the figure. False alarms correspond to noise-alone trials when the internal response is greater than criterion, as indicated in the figure.

By definition, the mechanical advantage is the relationship that exists between the output force or load lifted and the value of the force applied.

Thus, using the definition, we have that the mechanical advantage is given by:

Therefore, the mechanical advantage of lifting the box by using a pulley is equal to 1.

**Answer:
**

**The mechanical advantage in this situation is:
**

**Equal to 1**

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All we need is the momentum before and after.

**Momentum = (mass) x (speed)**

**Before:**= (80 kg) x (4.7 m/s) = 376 kg-m/s

**After:**= (80 kg) x (3.4 m/s) = 272 kg-m/s

Change in momentum = (376 - 272) =

**104 kg-m/s**

Notice that when you work with impulse, you're USUALLY calculating

(force) x (time).

The force is in Newtons, and the time is in seconds,

so the impulse is usually in units of

Newton-seconds .

So how can I say that impulse and change of momentum are

the same thing ? Am I trying to pull a fast one on you ?

Remember that 1 Newton is 1 kg-m/s²

So (force) x (time)

= (Newton) x (second)

= (kg-m/s²) x (second) =

**kg-m/s**.

and Momentum = (mass) x (speed) =

**(kg) x (m/s)**

The units of impulse are the same as the units of momentum !

So when you give an object some impulse, you give it exactly

that much momentum.

an unbalanced force moving everyone in Daniel and Maria's direction

**Answer:**

option (a)

**Explanation:**

The electrical power is defined as the energy per unit time.

The formula foe the power is given by

P = V I = I^2 R = V^2 / R

So, to find the power we must know the values of current and voltage.

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What is the only force acting on a projectile if you ignore air resistance

then the acceleration of the second object will be twice as that of the first since the mass of both objects is equal(100kg) and the force F is doubled. Therefore the acceleration of object 2 will be more than that of object 1 (double)

hope this helps.

best regards

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