V = f * wavelength
as we know electromagnetic wave has speed equal to light, so
3 * 10^8 = f * 1.3
f = 2.3 * 10^8 hertz
f = 230 mega hertz
1. Yes, this true as voltage remains constant.
2. Yes, a moving electrical charge generates a magnetic field.
Answer:
896,000 J
Explanation:
m = 1,120 kg
v = 40 m/s
kinetic energy = mv^2/2 = 1,120 * 40^2/2= 896,000 J
why did my answer get deleted??
oh yeah i put a link on there- oopsies.
I wont this time!
I got 30!
