80% from burning fossil fuels
Did you mean acceleration? “Average acceleration is the final velocity minus the initial velocity per time taken”
Answer: B. Increases
Explanation:
An electron is a negatively charged particle, while a proton is positively charged.
Opposites attract so as it approaches the proton the force of attraction will increase.
Answer:
Plug in the given values and solve for the final velocity. Remember, when the ball is on the ground it has a height of zero.
Explanation:
Answer:
Average speed = 46.67 m/s
Explanation:
Given that the time taken in covering first 1000 m = 25 seconds.
The time taken in covering next 2.5 km = 50 seconds.
Total distance covered = 1000 m + 2500 m = 3500 m
Total time taken = 25+50=75 seconds
Average speed = Total distance covered / total time taken
= 3500/75 = 46.67 m/s