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NikAS [45]
3 years ago
13

Two laptop computers each have a mass of 2 kg. If they are 0.5 m apart on a desk, what is the gravitational force between them?

G = 6.67 × 10-11 N⋅(m/kg)2
Physics
1 answer:
Rudik [331]3 years ago
4 0

Answer:

F = 1.067 \times 10^{-9} N

Explanation:

As we know that the gravitational force between two masses is given as

F = \frac{Gm_1m_2}{r^2}

here we know that

m_1 = m_2 = 2 kg

also we know that

r = 0.5 m

G = 6.67 \times 10^{-11} Nm^2/kg^2

so the force between two masses is given as

F = \frac{(6.67 \times 10^{-11})(2)(2)}{0.5^2}

F = 1.067 \times 10^{-9} N

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Morgarella [4.7K]

Answer:

Over Here

Explanation:

Newton's second law of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

8 0
3 years ago
9) A balloon is charged with 3.4 μC (microcoulombs) of charge. A second balloon 23 cm away is charged with -5.1 μC of charge. Th
lina2011 [118]

Answer:

9. The force is a force of attraction and it is 2.95N

10. The magnitude of acceleration 35.12m/s^2 and the direction of this acceleration is away from the other balloon.

Explanation:

Parameters given:

Q1 = 3.4 * 10^-6C

Q2 = - 5.1 * 10^-6C

Distance between the two balloons = 23cm = 0.23m

9. Force acting between the two balloons is a force of attraction because they are unlike charges. Hence, the force between them is:

F = kQ1Q2/r^2

F = (9 *10^9 * 3.4 * 10^-6 * -5.1 * 10^-6)/(2.3 * 10^-1)^2

F = (1.56 * 10^-1)/(5.29 * 10^-2)

F = - 2.95N

10. Assuming that Balloon A has a mass, m, of 0.084kg, then:

F = ma

Where a = acceleration

a = F/m

a = -2.95/0.084

a = - 35.12m/s^2

The acceleration has a magnitude of 35.12m/s^2 and its direction is away from balloon B.

The negative sign shows that the balloon A is slowing down as it moves towards balloon B. Hence, it's velocity is reducing slowly.

4 0
4 years ago
The gravitational potential energy of a contracting interstellar cloud
Olegator [25]

Answer:

b) gradually transforms into other forms of energy.

Explanation:

Interstellar clouds are composed of gases, plasma and dust etc. So when the gravitation force becomes stronger the clouds starts to contract which results in the reduction of the gravitational potential energy. As the gravitational potential energy decreases, there is an increase in the kinetic energy in the form of heat and temperature. Thats why we say that upon contraction of the interstellar clouds the gravitational potential energy gradually transforms into other forms of energy.

5 0
3 years ago
Brainliest answer! You and a friend are at a park and want to swing on the swings. Describe when you would have the greatest pot
NemiM [27]
Answer the point I wish you would have the greatest potential energy is when you are coming down the swing and getting ready to go up the greatest kinetic energy is whenever you’re falling back down from the height of how far you went up
3 0
3 years ago
Read 2 more answers
(8c7p26) During spring semester at MIT, residents of the parallel buildings of the East Campus dorms battle one another with lar
likoan [24]

Answer: 1175 J

Explanation:

Hooke's Law states that "the strain in a solid is proportional to the applied stress within the elastic limit of that solid."

Given

Spring constant, k = 102 N/m

Extension of the hose, x = 4.8 m

from the question, x(f) = 0 and x(i) = maximum elongation = 4.8 m

Work done =

W = 1/2 k [x(i)² - x(f)²]

Since x(f) = 0, then

W = 1/2 k x(i)²

W = 1/2 * 102 * 4.8²

W = 1/2 * 102 * 23.04

W = 1/2 * 2350.08

W = 1175.04

W = 1175 J

Therefore, the hose does a work of exactly 1175 J on the balloon

7 0
3 years ago
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