Ask question

Ask question

All categories

3 years ago

11

Two objects of the same mass are in a room. At which of the following distances will the greatest gravitational force be exerted

by one object on another?
2 m
4 m
6 m
8 m

2 answers:

andrew11 [14]3 years ago

8 0

8m becoz when the distance increases the gravitational strength also increases

loris [4]3 years ago

3 0

8m because the farther away the less powerful

You might be interested in

Determine the force of gravitational attraction between the Earth and the moon. Their masses are 5.98 x 1024 kg and 7.26 x 1022

monitta

Answer:

$F=1.95\times 10^{20}\ N$

Explanation:

Mass of Earth, $m_e=5.98 \times 10^{24}\ kg$

Mass of Moon, $m_m=7.26\times 10^{22}\ kg$

The distance between Earth and the Moon is, $d=384,400\ km$

We need to find the force of gravitational attraction between the Earth and the moon. The force of gravity is given by :

$F=G\dfrac{m_em_m}{r^2}\\\\F=6.67\times 10^{-11}\times \dfrac{5.98 \times 10^{24}\times 7.26\times 10^{22}}{(384400 \times 10^3)^2}\\\\F=1.95\times 10^{20}\ N$

So, the required force is $1.95\times 10^{20}\ N$ .

4 0

3 years ago

A car traveling at 23 m/s starts to decelerate steadily. It comes to a complete stop in 5 seconds. What is its acceleration?

kykrilka [37]

We could determine the acceleration using this formula
$\boxed{a= \dfrac{v_{1}-v_{0}}{t} }$

Given from the question v₀ = 23 m/s, v₁ = 0 (the car stops), t = 5 s
plug in the numbers
$a= \dfrac{v_{1}-v_{0}}{t}$
$a= \dfrac{0-23}{5}$
$a= \dfrac{-23}{5}$
a = -4.6
The acceleration is -4.6 m/s²

8 0

3 years ago

How far from the surface of Earth is the magnitude of Earth's gravitational field equal to 7.86 N/kg?

AfilCa [17]

Answer:

7.48 x 10⁵ m

Explanation:

g = 7.86 N/kg

M = 5.97 x 10²⁴ kg, R = 6.37 x 10⁶ m.

Find height h

g = GM/(R + h)²

(R + h)² = GM/g = 6.67 x 10⁺¹¹ x 5.97 x 10²⁴ /7.86 = 5.066 x 10¹³

R + h = 7.12 x 10⁶ m

so

h = 7.12 x 10⁶ - 6.37 x 10⁶ = 7.48 x 10⁵ m

4 0

2 years ago

Generators use the magnetic field of which of the following to produce an electric current?

STatiana [176]

<span>Generators use the magnetic field of "Permanent Magnets"

In short, Your Answer would be Option D

Hope this helps!</span>

5 0

3 years ago

What is the function of mitochondria? BRAINLIEST WILL BE GIVEN PLS HELP

Citrus2011 [14]

Answer:

The Mitochondria generates most of the chemical energy needed to power the cell's biochemical reactions.

Explanation:

I studied the body organisms 2 years ago.

7 0

2 years ago

Read 2 more answers