Answer:
The voltage on the secondary is 12 V while the current is 0.5 A.
Explanation:
A transformer works by changing the level of the voltage and current on a circuit using a magnetic field and two coils. The ratio by wich they are changed is dependant on the ratio of turns between the primary and secondary of the transformer. In this case we have a ratio for the voltage of:
ratio = (turns on the secondary)/(turns on the primary)
ratio = 100/1000 = 0.1
So in this case the voltage delivered to the primary will be multiplied by 0.1. We can now calculate the voltage on the secondary:
Voltage secondary = Voltage primary* ratio = 120*0.1 = 12 V
The transformer maintains roughly the same power output on both sides, since the power output on a electric circuit is given by the product of the voltage by the current on that circuit, to maintain the same power when the voltage has been droped the current must be raised by the same ratio. So we have:
Current secondary = Current primary*(1/ratio) =0.05*(1/0.1) = 0.5 A
<span>D. The speed of light, traveling in a vacuum, will not change if the light source is moving.
The speed of light in a vacuum is always constant regardless of the speed the source or you are travelling at.</span>
It really doesn't matter whether it's a compression wave in a Slinky®,
or a trained frog, or a model airplane, or a baby chicken.
Time = distance / speed
Time = (9 m) / (2 m/s) = 4.5 seconds
Answer:
24.6 - 11.2 / 4.4 = 3.045m/s
Explanation:
acceleration = vf-vi / time
vf= 24.6 m/s
vi= 11.2 m/s
t= 4.4s
Answer: When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance.The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.
Explanation:
