Answer:
By the principle of corona discharge.
Explanation:
The charge on each ball will decreases over time due to the electrical discharge in air.
According to the principle of corona discharge, when the curvature is small, the discharge of the charge takes placed form the pointed ends.
Answer:
Initial velocity of first cart will be 0.5 m /sec
Explanation:
We have given mass of the cart
Its collides with other cart of mass
Let the initial velocity of cart 1 is
As the car 2 is initially at rest so = 0 m/sec
After the collision velocity of first cart is 0.25 m/sec
So = 0.25 m/sec and velocity of second cart is 0.50 m /sec
So = 0.5 m/sec
From conservation of momentum we know that
= 0.5 m /sec
So initial velocity of first cart will be 0.5 m /sec
The tearing of paper is physical as it's still paper even when you tear it. A chemical reaction is when the substance is chemically change. ... When paper is burn, the cellulose in the air reacts with the oxygen to form carbon dioxide and water.
Therefore it's chemistry.
Answer:
C) The upward force of air resistance is greater with the note card causing it to reach the ground slower.