The answer is:
C. 361 m/s
The explanation:
To calculate the speed of sound at a given temperature (50°C) we are going to use this formula:
v = 331 + 0.6T
when V is the velocity
and T is the temperature = 50°C
by substitution:
v = 331 + 0.6(50)
v = 361 m/s
So, The correct answer is C.
because of the variation of the motion of the molecules of air with change of temperature so, the velocity (V) of the sound in the air is change with temperature.
Answer:
0 N
Explanation:
This is a trick question, the mass of the wrench would be 0 due to it being in space and has no gravitational pull to weight it down. And since acceleration is defined as the rate and change of velocity with no respect of time and the wrench is moving at a constant velocity, that means the velocity is 0. and since F = m*a it would be F = 0 * 0 = 0 N
Because of the axis of the earth. It takes 24 hours to rotate 360 degrees.
Answer:
The environmental conditions prevent the reaction to be accurate.
Explanation:
If the temperature is very hot then the oxygen production will be low even near to zero then the accurate light intensity can not be determined. The oxygen production level goes down when the temperature is too hot. The oxygen production is maximized when the temperature is around 25 degree Celsius. When the intensity of light is increased to 40% then the oxygen production will increase.
