John pushes forward on a car with a force of 400 N while Bob pushes backward on the car with a force of 325 N. what is the net f
2 answers:
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Answer:
Total number of lamps will be 4
Explanation:
We have given power of the lamp W = 400 watt
Potential difference across the lamp V=110 volt
We know that power is equal to
So
Total current is given 15 A
As it is given that lamps are connected in parallel so total current is the sum of current through each lamp
So number of lamp will be
As the lamp can not be in negative
So total number of lamps will be 4
Answer:
The equation of simple harmonic motion is
Explanation:
Given that,
Amplitude = 5 inches
Frequency
As per the question initial displacement is zero at t = 0 for sine curve.
The displacement is zero so the phase difference will be zero.
We know that,
The general equation of simple harmonic motion
Where, A = amplitude
= angular frequency
= phase shift
We need to calculate the time period
Using formula of frequency
Put the value into the formula
We need to calculate the angular frequency
Using formula of angular frequency
Put the value into the general equation
Hence, The equation of simple harmonic motion is