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Brilliant_brown [7]
3 years ago
11

1. What is the gravitational force of attraction between two 800 kg spherical objects that are 5 m apart? What would the gravita

tional force of attraction between these two objects be if the distance between them was changed to 10 m?
Physics
1 answer:
Katyanochek1 [597]3 years ago
4 0

Answer:

the force of gravity between them is quadrupled .

Explanation:

Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces.

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Describe the forces on a rope that supports a tire swing when a child sits on the tire
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A 7.75-l flask contains 0.482 g of hydrogen gas and 4.98 g of oxygen gas at 65°c. What is the partial pressure of oxygen in the
dimulka [17.4K]

Answer:

0.558 atm

Explanation:

We must first consider that both gases behaves like ideal gases, so we can use the following formula: PV=nRT

Then, we should consider that, whithin a mixture of gases, the total pressure is the sum of the partial pressure of each gas:

P₀ = P₁ + P₂ + ....

P₀= total pressure

P₁=P₂= is the partial pressure of each gass

If we can consider that each gas is an ideal gas, then:

P₀= (nRT/V)₁ + (nRT/V)₂ +..

Considering the molecular mass of O₂:

M O₂= 32 g/mol

And also:

R= ideal gas constant= 0.082 Lt*atm/K*mol

T= 65°C=338 K

4.98 g O₂ = 0.156 moles O₂

V= 7.75 Lt

Then:

P°O₂=partial pressure of oxygen gas=  (0.156x0.082x338)/7.75

P°O₂= 0.558 atm

3 0
3 years ago
A)what are oxidation numbers? b) what useful functions do oxidation numbers serve
9966 [12]
<span>A) indicate the general distribution of electrons among bonded atoms in molecular compounds
B)</span>useful in naming compounds, writing formulas, and balancing chemical equations
<span>may be used to determine the simplest chemical formula </span>
5 0
3 years ago
Help me with the following problem
Effectus [21]

The mass of the ball is 1.55 kg and its change in momentum is  10 kgm/s.

<h3>What is momentum of a body?</h3>

The momentum of a body is the product of the mass and velocity of the body.

  • Momentum = mass * velocity

Mass of the ball = momentum/velocity

Mass of the ball = 3.29 / 2.11 = 1.55 kg

The change in momentum of the body or Impulse = force * time

Change in momentum of the body = 5.00 * 2.00 = 10 kgm/s

Therefore, the momentum of a body depends on its mass and velocity.

Learn more about momentum at: brainly.com/question/1042017

#SPJ1

6 0
2 years ago
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