1) 30 volts is correct
2) Rt = (4x6)/(4+6)=2.4 Ω
3) P = I^2 x R = 36 W
we use AC because it's easy to transmit via 3 phase on cables and easy to step up and down
Explanation:
Energy loss through walls can be reduced using cavity wall insulation. This involves blowing insulating material into the gap between the brick and the inside wall, which reduces the loss by air circulating inside the cavity, therefore reducing loss by convection through the cavity.
Answer:
33627.4 N/m
Explanation:
By Hook's law F = k x
where F= force applied
K= Spring constant
x= distance it compresses.
Since the force applied in this case will be the weight of the object that causes it to compress, so, the weight will be (175 * 9.8) = 1715N force which causes a compression (x) of 0.0510m.
So,
F = K x
K = F / x
K = 1715 / 0.0510
K = 33627N/m
Answer:
I think the answer is 19.8 potential energy
Explanation:
NONE.
