Answer:
4/3 pi R^3 = pi r^2 L equating volume of sphere and wire
r = (4 R^3 / 3 * L)^1/2 solving for radius of wire
r = (4 * 6^3 / 3 * 32)^1/2
r = 9^1/2 cm = 3 cm = .03 meters
Answer:
The particles in substance W have a lower average kinetic energy than the particles in substance X.
Explanation:
The temperatures of the substances in this problem are:
W X Y Z
12 18 9 20
(expressed in degrees Celsius)
The temperature of a substance is a measure of the average kinetic energy of the particles in the substance.
In fact, the two variables are related by the formula:
where
KE is the average kinetic energy of the particles
k is the Boltzmann constant
T is the absolute temperature (in Kelvin) of the substance
Therefore, we see that the average kinetic energy of the particles is directly proportional to the temperature of the substance. So, the correct option is
The particles in substance W have a lower average kinetic energy than the particles in substance X.
Because substance W has a lower temperature (12 degrees) than substance X (18 degrees)
Answer:
Following are the option are the correct option to the given question
- Plane landing on an aircraft carrier.
-
Rain sticking to a window.
-
Two train cars coupling together.
Explanation:
In the inelastic collisions is the kinetic energy is not preserved because of the some internal friction.In the elastic collision there is shortage of the kinetic capacity.
- When the airplane is landing it has always been in contact with the surface to relieve the inelastic collision condition.
- When then rain falls the clinging to the door once it intersect with as well so it is satisfied the condition of inelastic collision.
- When the two train or cars collide there is loss of kinetic energy so it is satisfied the condition of inelastic collision.
- All the other option is not the example of inelastic collision that's why they are incorrect option.
When throwing a baseball, you are using kinetic energy. When it is in the air, there is potential energy, then when it is caught, the energy is transferred to the person who caught it. It is energy gained. The ball is also an example of inertia.
It depends on Mass and velocity