Dropping a bouncy ball and stretching a rubber ban.
Answer:
Science can only answer inquiries about effects and events that are discovered, defined, and studied in the material realm. It cannot answer questions about the one basic cause of all effects and events.
You don't have a following space exploration
Answer:

Explanation:
In an ideal transformer the relationship between the voltages is proportional to the ratio between the number of turns of the windings. Thus:

Where:




So, solving for 

Answer:
The string will break with a speed of 20 m/s.
Explanation:
It is given that,
Tension at which the string just breaks, T = 400 N
Mass of the stone, m = 10 kg
Radius of the circle, r = 10 m
We need to find the speed at which the string will break. The boy continuously increases the speed of the stone. The tension acting on the stone is equal to the centripetal force. It is a force that acts towards the center of circle. It is given by :



v = 20 m/s
So, the string will break with a speed of 20 m/s. Hence, this is the required solution.