Answer:
So it will lift the mass by h = 17 m
Explanation:
As per energy conservation we know that
here we know that
now we have
so work done by the engine is 250 J
now we have
Answer:
The length of the runway to the nearest meter is 306 m.
Explanation:
Given:
Initial velocity of Christina is,
Time taken is,
Acceleration experienced by Christina is,
The length of the runway is,
Now, we use Newton's equation of motion that relates the distance, initial velocity, time and acceleration.
So, we have the following equation of motion:
Plug in all the given values and solve for 'd'. This gives,
Therefore, the length of the runway to the nearest meter is 306 m.
energy?
A energy of moving electrons
B vibrations of particles of matter
C energy that moves things
D vibrations that move tiny bones in the ear
Help me 30 points
Answer:
Energy that moves things. Think of your arm grabbing a glass of water. That's a form of mechanical energy because you just moved something.