Answer:
The brightness of a light depends on the amplitude of the light wave, which is the extent the waves moves from their equilibrium position. The brightness is also related to the amount of light that is emitted or reflected by an object
Therefore, compared to dim light, light that look bright have a higher amplitude and emit or reflect more light energy (photons)
Explanation:
Answer:
1.78 J
Explanation:
Find the spring coefficient using Hooke's law:
F = k Δx
23 N = k (0.20 m − 0.14 m)
k = 383.33 N/m
The work is the change in energy:
W = PE₂ − PE₁
W = ½ kx₂² − ½ kx₁²
W = ½ k (x₂² − x₁²)
W = ½ (383.33 N/m) ((0.17 m)² − (0.14 m)²)
W = 1.78 J
Answer:
The answer to your question is
Explanation:
To add vectors in a straight line _<u>right</u>_________ and ___<u>upwards</u>_______ are considered positive directions.
__<u>left</u>________ and __<u>downwards</u>____________ are considered negative directions.
I hope it helps you
According to galilo in the absence of air resistance fraction then the body mass 60kg and 40kg will reach the earth surface at the same time....
Answer:
The Height of a pyramid is 4r.
Explanation:
Explanation is in the following attachments
