Answer:
The gravitational force between m₁ and m₂, is approximately 1.06789 × 10⁻⁶ N
Explanation:
The details of the given masses having gravitational attractive force between them are;
m₁ = 20 kg, r₁ = 10 cm = 0.1 m, m₂ = 50 kg, and r₂ = 15 cm = 0.15 m
The gravitational force between m₁ and m₂ is given by Newton's Law of gravitation as follows;

Where;
F = The gravitational force between m₁ and m₂
G = The universal gravitational constant = 6.67430 × 10⁻¹¹ N·m²/kg²
r₂ = 0.1 m + 0.15 m = 0.25 m
Therefore, we have;

The gravitational force between m₁ and m₂, F ≈ 1.06789 × 10⁻⁶ N
JAYLA OTHER KIDS ANSWER OUR QUESTIONS DID YOU KNOW THAT BESTFRIEND
Answer: The correct answer is "A mechanical wave travels through matter, while an electromagnetic wave travels through empty space".
Explanation:
The difference between a mechanical wave and an electromagnetic wave are as follows:
Electromagnetic waves are produced by the vibrations of the charged particles while the mechanical waves are caused by the wave amplitude.
Electromagnetic wave does not need medium while the mechanical wave need medium to travel. Mechanical wave can travel in solid, liquid and gas. Electromagnetic wave travels in vacuum.
Therefore, a mechanical wave travels through matter, while an electromagnetic wave travels through empty space.
Explanation:
When the wires of a circuit will break, circuit will be open state and stop the flow of current. Once the wires are reconnected, current will start flowing again in the circuit.
1) Length of the wire.
2) Thickness of the wire.
3) Temperature.
4) Type of metal.
Hope this helps!
-Payshence