<h3><u>Answer;</u></h3>
= 75 %
<h3><u>Explanation</u>;</h3>
To measure efficiency of a machine, compare the work output to work input.
Efficiency = Work output/ work output × 100 %
= 300/400 × 100
= 75 %
Answer:
131.3 m
Explanation:
Period of pendulum depends on the length of the pendulum. It can be calculated by using the formula:
Thus, tower is 131.3 m tall.
The efficiency of the bicycle is 20% because 200 out 100 is 2.and ,convert 1000 j out 100 that equal to 10 but,then multiply 2×10 that equal to 20%
Answer:
Explanation:
As we know that initially the air bubble is at depth 110 m
so the pressure of the air bubble is given as
initial volume of the bubble is given as
now we know that here temperature of air bubble is constant
so we have