Light bulbs are loads, so they have a certain amount of resistance associated with them. In series, Resistance total = R1 +R2 +R3...
So the more resistance you add, the more resistance there is! Therefore, the resistance increases!
Answer:
Explanation:
The approach of Linear expansivity was used in solving the problem and the detailed steps and appropriate calculation is carefully shown in the attached file.
Answer:
a) KE = 0.0857Joules
b) height = 0.073m
Explanation:
The rotational inertia of the rod at an axis passing through the fixed end is given by:
I = Icm + my
I= 1/12 mL^2 + m(L/2)
I= 1/12 ×0.12×(0.75)^2 + 0.12× (0.75/2)^2
I = 5.625×10^-3 + 0.01688
I = 0.0225Kg/m^-2
a) KE = 1/2 Iw^2
Where I= rotational inertia
w= angular speed at lowest point
KE = 1/2 × 0.0225 ×(2.76)^2
KE= 0.0857 Joules
b) Ki + Ui = Kf + Uf
Ki = Uf - Ui = 0
mgh = K
0.0857= mgh
h = 0.0857/( 0.120× 9.8)
h = 0.0857/ 1.176
h = 0.073m
Answer:
the answer is c. Havanna's soccer ball has 9 times the kinetic energy, because it travels at 3 times the speed
Explanation:
Distance walked 34km and displacement should be something like 28km
