Jan is holding an ice cube. What causes the ice to melt?
1 answer:
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Answer: 3
Explanation:
Given
One cloud is traveling at rate of
combined velocity of the two is
Suppose the masses of the clouds be
Conserving momentum
Answer:
1. The current will drop to half of its original value.
Explanation:
The problem can be solved by using Ohm's law:
where
V is the voltage across the circuit
R is the resistance of the circuit
I is the current
We can rewrite it as
In this problem, we have:
- the resistance of the circuit remains the same: R' = R
- the voltage is decreased to half of its original value:
So, the new current will be
so, the current will drop to half of its original value.