Answer:
Sound and light are similar in that both are forms of energy that travel in waves. They both have properties of wavelength, freqency and amplitude. Here are some differences: Sound can only travel through a medium (substance) while light can travel through empty space.
the resulting wave speed=62.7 m/s
Explanation:
The speed of a wave is given by
v=
T= tension, v= velocity= 58 m/s
when the tension is increased by 17%, new tension= 1.17 T
V'=1.082 V
V'=1.082 (58)
V'=62.7 m/s
Answer: a) work done = 3946429.5 J
b) work done = 943.22 nutritional calories
Explanation:
The period of the pendulum doesn't determine the length of the string.
It's the other way around.
The period of the pendulum is proportional to the square root of its length.
So if you want to triple the period, you have to make the string nine times
as long as it is now.
Your answer can be either 92 900 000 or 9.29e+7
