Answer:
The answer is A
Explanation:
Here's an example. A child is in school taking a test. They have made a mistake on a question, and want to erase it. The eraser is made out of a type of rubber, the rubber has friction, which means the eraser has something that's going to resist movement. Now the child has exerted enough force to get it moving, and it's moving, it won't stop unless the child stops exerting force to keep it moving. Both Newton's 1st and 3rd law explain the action of moving something on a surface with friction.
Answer:
electrons are NEGATIVE not POSITIVE ionic bond
Explanation:
Answer:
The work done is 
Explanation:
<u>Data</u>
- Mass:
- height:
- acceleration due to gravity:
Non conservative force act
The work is:
Δ
+Δ
KE and PE means kinetic energy and potential energy respectively.
The change in kinetic energy is 0, since the skydiver’s velocity remains constant.
Therefore
Δ
Δ
substitute the values
Answer:
The frequency of the wave is 184.75 Hz.
Explanation:
Given;
wavelength of the wind, λ = 2.23 cm = 0.0223 m
speed of the wind wave, v = 4.12 m/s
the frequency of the wave = ?
The frequency of the wave is calculated as;
F = V / λ
Where;
F is the frequency of the wave
Substitute the given values and solve for F
F = (4.12) / (0.0223)
F = 184.75 Hz.
Therefore, the frequency of the wave is 184.75 Hz.
