Answer:
Explanation:
Vectorially speaking, torque is the cross product between force and distance from fulcrum. Its magnitude is equal to the following expression:
Let assume that force is perpendicular to the distance from the fulcrum. So, the torque needed to turn the bolt is:
Answer:
The excess charge has distributed itself evenly over the outside surface of the sphere.
Explanation:
Since the hollow sphere is a conductor, it has free electrons that can move about within the sphere. In this light, an excess charge, the like charges repels each other, therefore ensuring that charges are spread as far apart as possible. There is therefore an evenly distributed charge on the outside surface of the sphere.
Answer:
The resistance of the lamp is 4Ω.
Explanation:
You have to apply voltage formula :
V = I × R
R = V ÷ I
R = 240 ÷ 60
R = 4 Ω
The answer is C. Answers A, B and D all require physics to answer. Answer C is related to Chemistry because it involves atoms and from the sound of it the fission of them because two One Hidrogen and two oxygen are required to make H2O - Water