Answer:
1. False
2. True
3. True
Explanation:
1- False —> The relation between electric potential and electric field is given such that
Therefore, for a uniform E field, electric potential is linearly proportional to the distance.
2- True —> The electric field lines always cross the equipotential lines perpendicularly.
3- True —> In order to be a potential difference, one source of electric field is enough. The electric potential will decrease radially according to the following formula:
There is no test charge in the formula, only the source charge. Even when there is no test charge, the potential difference between points in space can exist.
Answer:
The answer is hydrogen and oxygen
Explanation:
<h3>Explanation</h3>
The angular momentum of a rolling body is the product of the body's moment of inertia and its angular velocity.
where
- is the angular momentum of a rolling body;
- is the body's moment of inertia; And
- is the body's angular moment.
What's the moment of inertia of this bowling ball?
Assuming that the ball is a solid sphere. For a solid sphere,
.
where
- is the moment of inertia of the sphere;
- is the mass of the sphere; and
- is the radius of the sphere.
for this sphere. .
What's the angular momentum of this bowling ball?
.
.
E=F*d/2 = M*g*d/2 = 25kg * 9.8 N/kg *0.65m / 2 = 79.625J
C=d(pi)=43.98in. Tip travels 3300 x C = 145,134in per min. (145,134in/min)(1ft/12in)(1 mile/5280ft)(60min/1 hr) = 137.4mph.