Answer:
Neither "matter" nor "energy" can be created or destroyed, but they can be changed from one form to the other.
Explanation:
Answer:
Grounded used to carry the current in the normal conditions. while on the other side grounding is refer to that safety wire that is connected to the earth and currently does not transmit through it.
As grounding wire is referred to as safety wire hence it carries current only in an emergency like a short circuit.
Explanation:
A grounded conductor is referred to as one of the wire that needed in an electric circuit. it is basically a neutral conductor. It used to carry the current in the normal conditions. while on the other side grounding is refer to that safety wire that is connected to the earth and currently does not transmit through it.
As grounding wire is referred to as safety wire hence it carries current only in an emergency like a short circuit.
Answer:
The angular velocity is reduced when the body is fully stretched.
Explanation:
Divers keep there bodies as compact as possible just to increase the angular velocity.
When they extend their limbs to enter straight down the angular momentum helps them to dive. The angular velocity is reduced when the body is fully stretched and diver's inertia is also not reduced. Thus a streamlined shape is formed which helps to penetrate more deeper into the water.
The impact area is reduced when fully stretched body is entered in to the water.
Answer:
a.
b.Repulsive
Explanation:
We are given that



r=1.66m
We know that
Electrostatic force =
r=Distance between 
k=Constant=
Using the formula
a.The magnitude of the electrostatic force=
The magnitude of the electrostatic force=
b.Both charge are positive .We know that when like charges repel each other and unlike charges attract to each other.
Therefore, the force between given charges is repulsive.
Answer:
Box 1 has more mass than box 2.
Explanation:
Box 1 has more mass than box 2, as it caused a greater affect in the change of speed of box 2. During a collision, the object with a lesser mass will be affected more, causing the velocity to change more. Because box one is greater than box 2, it caused a larger change in speed when they collided.