What is Newton's law of universal gravitation?
2 answers:
You might be interested in
Answer:
Max speed =
Max acceleration =
Explanation:
Given the description of period and amplitude, the SHM could be described by:
and its angular velocity can be calculated doing the derivative:
And therefore, the tangential velocity is calculated by multiplying this expression times the radius of the movement (3 m):
and is given in m/s.
Then the maximum speed is obtained when the cosine function becomes "1", and that gives:
Max speed =
The acceleration is found from the derivative of the velocity expression, and therefore given by:
and the maximum of the function will be obtained when the sine expression becomes "-1", which will render:
Max acceleration =
Answer:
The value of resistance when power is 1100 watts = = 50 ohms
Explanation:
Power = 2200 Watts
Resistance = 25 ohms
Power = 1100 Watts
Resistance = we have to calculate
Given that the power in an electric circuit varies inversely with the resistance
⇒ P ∝
⇒ =
⇒ =
⇒ = 50 ohms
This is the value of resistance when power is 1100 watts.