First, let's calculate the total mechanical energy when the block is at rest and the spring is compressed 5 cm:
Now, let's use this total energy to calculate the velocity when the spring is compressed by 2.5 cm:
Therefore the speed is 1.026 m/s.
A 150 g ceramic serving bowl is warmed 52.0°C when it absorbs 2.2 kcal of heat from a serving of hot food. What is the specific
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Answer:
The current through it will also decrease to half of its former value because according to Ohm's law the current flowing through a resistor is directly proportional to the potential difference applied across its ends provided that the temperature and some other necessary conditions remain constant.
This is mathematically represented as follows;
The current is thus given as
if R is constant and V is reduced to half, then we have the following;
Simplifying further we obtain
Equation (3) shows that the current I is also reduced to half.