Answer: Dark matter.
Explanation: Hope it helps :)
<span>c) what is the angle (relative to the horizontal) of the balls initial velocity?
</span>
Answer:
O inertia
Explanation:
The tendency of a body to maintain its state of motion is inertia.
Inertia is the tendency of a body to remain at rest or in constant motion.
- According to newtons first law of motion "a body will remain in its state of rest or constant motion unless acted upon by an external force".
- The tendency of the body to remain in a state of rest or of constant motion is the inertia.
- Such a body will not want to accelerate or change motion.
A and b!
hope this helps!
The gravitational attraction between two planets is 4905.95 N
<h3>What is gravitational attraction?</h3>
When two objects with masses are placed at a distance, there will an attractive force acting between them.
According to the Newton's law of gravitation, gravitational force is
F = Gm₁m₂ /r²
where r is the distance between the masses m₁ and m₂ and G is the gravitational constant G = 6.67 x 10⁻¹¹ N-m²/kg²
Substitute the values into the expression, we get
F = 6.67 x 10⁻¹¹ x 2.25 x 10²⁰ x 6.20 x 10¹⁸ / (435,500 x 1000)²
F= 4905.95 N
Thus, the gravitational attraction between two planets is 4905.95 N.
Learn more about gravitational attraction.
brainly.com/question/19822389
#SPJ2
