Answer:
c
Explanation:
in food and batteries chemical energy is stored :) hope this helped
Answer:v=41.23 m/s
Explanation:
Given
mass of heavy object
distance of from the axle
mass of rock
Length of rod
distance of from axle
Net torque acting is
Work done by is converted to rock kinetic Energy
thus
Where
Answer:
Explanation:
Given
Distance to grandmother's house=100 mi
it is given that during return trip Julie spend equal time driving with speed 30 mph and 70 mph
Let Julie travel x mi with 30 mph and 100-x with 70 mph
x=30 mi
Therefore
Julie's Average speed on the way to Grandmother's house
=42 mph
On return trip
Answer:
Explanation:
The problem is solved using the law of conservation of energy,
So
Answer: A crest is the highest point the medium rises to and a trough is the lowest point the medium sinks to. It is also a point on the wave where the displacement of the medium is at a maximum.