The lines can be traced out with a compass. The needle is like a permanent magnet and the north indicator is the north end of a magnet.
PVI, so the power used would be 240*5= 1200 Watts.
Snell's law is defined as “The ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant, for the light of a given colour and for the given pair of media”.
Answer:
ωf = 13 rad/s
Explanation:
- The angular acceleration, by definition, is just the rate of change of the angular velocity with respect to time, as follows:
- α = Δω/Δt = (ωf-ω₀) / (tfi-t₀)
- Choosing t₀ = 0, and rearranging terms, we have

where ω₀ = 5 rad/s, t = 4 s, α = 2 rad/s2
- Replacing these values in (1) and solving for ωf, we get:

- The wheel's angular velocity after 4s is 13 rad/s.
Bert would be going 34mph due to the taill winds being 6mph