Answer:
At the maximum height the ball will have an instantaneous velocity of zero. The formula for instantaneous velocity is
v = v₀ + at
Where v is the instantaneous velocity, v₀ is the initial velocity, a is the acceleration due to gravity, -9.8 m/sec², and t is the time.
We need instantaneous velocity to = 0.
0 = 20 - 9.8t : Isolate t => 1st step: Add 9.8t to both sides
9.8t = 20 : Isolate t => 2nd step: Divide both sides by 9.8
t = 2.04 seconds (approximately)
Explanation:
Answer:Technician A
Explanation:
Technician A is right as a 12 v battery contains 6 cells of 2.2 volts and
The size of the battery plates and amount of electrolyte decides the amount of charge lead acid batteries can store for example thus more plates a cell does not mean more voltage it creates.
Part A.
In order for the net magnetic field at the center of the circles to be zero, the individual magnetic fields produced by the wires must cancel each other. So in terms of direction, they must be opposite. The answer is:
<span>The currents direction must be counterclockwise
Part B
We have the relationship:
I</span>₁<span>/D</span>₁<span> = I</span>₂<span>/D</span>₂<span>
10/24 = I</span>₂/38
I₂ = 15.83 A