Answer:
T = 53.44 ° C
Explanation:
For this exercise we will use the relationship between the speed of sound and the wavelength and frequency
v = λ f
v = 0.285 1270
v = 361.95 m / s
The speed of sound is related to temperature in degrees Celsius
v = 331 √(1 + T / 273)
v² / 331² = 1 + T / 273
T / 273 = v² / 331² -1
T = 273 (v² / 331² -1)
Let's calculate
T = 273 (361.95²/331² -1)
T = 53.44 ° C
Answer:
Water is more dense than air. When water goes through a denser thing, the light is "bent" more towards the "normal" which is a straight, vertical line.
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Answer:
Power generated = 1,000W
Explanation:
Given
Mass, m= 60kg
Distance, d = 10m
Time, t = 6s
To calculate Power, First we need to get the total work done
Work done is calculated by multiplying force by distance;
Taking acceleration due to gravity as
Force = mg
Force = 60 * 10
Force = 600N
So, Work = Force * Distance
Work = 600N * 10m
Work = 6000Nm or 6000J
Power is calculated by
By Substitution
Power =
Power = 1000W
Answer:
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