What happens when a star exhausts its core hydrogen supply?
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Answer: F = 1235 N
Explanation: Newton's Second Law of Motion describes the effect of mass and net force upon acceleration:
Acceleration is the change of velocity in a period of time:
Velocity of the car is in km/h. Transforming it in m/s:
v = 13 m/s
At the moment the car decelerates, acceleration is
a = 65 m/s²
Then, force will be
= 1235 N
The horizontal net force the straps of the restraint chair exerted on the child to hold her is 1235 newtons.
Explanation:
Let are the number of turns in primary and secondary coil of the transformer such that,
A resistor R connected to the secondary dissipates a power
For a transformer,
...............(1)
The power dissipated through the secondary coil is :
.............(2)
Let are the new number of turns in primary and secondary coil of the transformer such that,
New voltage is :
...............(3)
So, new power dissipated is
So, the new power dissipated by the same resistor is 6400 watts. Hence, this is the required solution.