Ohms law is V = IR
from this we can rearrange so that I or current is the subject
I = V/R
so if both V and R are doubled, we can represent it as such
I = 2V/2R
The 2s will cancel out hence they effect on the current is nil
Answer:
Energy is transferred first from the battery to the circuit wire and then from the circuit wire to the light. What energy transformations occur between these two transfers? A. Energy is transformed first from chemical energy to light and heat energy and then from light and heat energy to electrical energy.
Explanation:
(a) g = Gm/r^2
where G=6.67 * 10^-11 Nm^2/kg^2,
m is the mass of the planet,
r is the radius of the planet.
7.0 = (6.67 * 10^-11)/(2500^2) * m
m= (25000000^2 * 9.0)/(6.67 * 10^-11)
m = 8.4333 x 10^24 kg
(b) g=Gm/r^2. This time, the radius is 2500+10000 = 12500km g = (6.67 * 10^-11 * 8.43333*10^18)/(12500^2)
g = 3.6 m/s^2
Answer:
Bike
Explanation:
bike is the most complex on here, chain, brakes, gears, and tries,
inclined plank is a little complex, gears and plates
lever requires gears or eletric wires,
and least complex is A screw
Answer:
I think the answer is A) Power
Explanation: