If something weighs 2891N on earth, what’s it’s mass?
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Answer:
Fr = 48 [N] forward.
Explanation:
Suppose the movement is on the X axis, in this way we have the force of the engine that produces the movement to the right, while the force produced by the brake causes the vehicle to decrease its speed in this way the sign must be negative.
∑F = Fr
The movement remains forward, since the force produced by the movement is greater than the braking force.
The average electric current in the lightning will be 8 × A
The lightning conductors are long metal strips running from the spike end of a conductor on the top of a building to the earth. They are used to prevent buildings from destruction when struck by thunder or lightning.
Given that a lightning strike can transfer as much as electrons from the cloud to the ground. if the strike lasts 2ms, to calculate the average electric current in the lightning, we will first consider the charge released.
one charge = 1.6 × C
Average current I = Q/t
Where
- Q = charge = 1.6 ×
C
- t = time = 2ms = 2 ×
s
- I = current = ?
Substitute all the parameters into the formula
I = 1.6 × C ÷ 2 ×
I = 8 × A
Therefore, the average electric current in the lightning will be 8 × A
Learn more about Lightning here: brainly.com/question/3183045
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