Answer:
A
Explanation:
if he goes to the west, the east is opposite so 100-30
Is this practically possible? How can a 100kg man fly? Hahaha
Answer:
Machine Efficiency
Explanation:
Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work). The output work is always less than the input work because some of the input work is used to overcome friction. Therefore, efficiency is always less than 100 percent
Light from other stars take longer to reach the earth because they are farther than our sun.
