Celcius is a bigger measurement than fahrenheit. Comparable to a 2-1 ratio, the two being celcius. So about 3 degrees above normal temp in celcius, would be about 10-11 degrees in fahrenheit.
From the statement, the wavelength should be 1.6 cm * 1/4 = 0.4 cm. Then, we use the wave equation formula. The frequency is equal to the speed of light divided by the wavelength. First, let's use the SI units.
0.4 cm = 0.004 m
The speed of light is equal to 3 x 10^8 m/s
Frequency = 3 x 10^8 m/s ÷ 0.004 m
Frequency = 7.49 x 10^10 s^-1
Answer:
510
Explanation:
Power= Rate of doing work i.e work done\time
=force*displacement\time
=mass*g*d\t
=51*10*5/5
=510watt
