The wavelength, λ tells us how long one segment of the wave is. The frequency, f tells us how often one whole segment goes by. So the speed is the wavelength (in meters), times the frequency (in Hz)
v=λ f=1000m/s
Answer:
Explanation:
We know that the volume V for a sphere of radius r is

If we got an uncertainty
the formula for the uncertainty of V is:

We can calculate this uncertainty, first we obtain the derivative:


And using it in the formula:



The relative uncertainty is:



Using the values for the problem:

This is, a percent uncertainty of 4.77 %
Voltage=Energy/Charge, V=E/Q
V in volts V, E in joules J, Q in coulombs C.
or
Voltage= Current×Resistance, V=IR
V in volts V, I in amperes A and R in ohms Ω
Answer:
A person on top of a hill
Explanation: