Answer:
The constriction causes the mercury column to break under tension, leaving a vacuum between the bottom of the column and that in the bulb, and the top of the column stays still at the position reached in the body - a "peak hold" system.
These two forces are called action and reaction forces and are the subject of Newton's third law of motion. Formally stated, Newton's third law is: For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects.
ANSWER
C. 5 seconds to 7 seconds
EXPLANATION
This is a velocity time graph.
We can read the final velocity, v,the initial velocity u and the time easily from the graph.
See attachment for the initial and final velocities on each time interval.
So we can use either of the following equations to calculate the distance traveled.
Or
.
During the time interval 0 to 3, the distance traveled is,
.
During the time interval 3 to 5 seconds, the distance traveled is,
.
During time interval, 5 to 7 seconds the distance traveled is,
.
During time interval 7 to 8 seconds the distance traveled is
.
During time interval 8 to 10 seconds the distance traveled is
.
The correct answer is C.
Answer:
v = 2.94 m/s
Explanation:
Given that,
Mass of anvil, m = 15 kg
The gravitational potential energy relative to the floor, P = 65 J
We need to find the speed just before it hits the floor when the Anvil is released. Let it is v.
We can use the conservation of energy.
So, the required speed is 2.94 m/s.
Answer:
a wedge.
Explanation:
it moves when you apply force to one end of the wedge.