Answer:
Is A supposed to be 6 x m or no??
Step-by-step explanation:
Is 125 because u need to take the 5 and add 3 on the top
What we have so far:
Kinetic energy = 0. The reason behind that is because the beam is not moving at a height of 40m.
Gavity, g = 9.8m/s²
Height = 40m
Potential energy = mgh; this is equal to 0 because m, stands for mass and in this problem, we do not have a value for the mass of the beam. Hence, 0 x 9.8m/s² x 40m = 0. Potential energy = 0.
Solution:
We will use the equation of Total energy:
TE = potential energy + kinetic energy
TE = 0 + 0
∴ TE = 0
The answer is: Assuming no air resistance, the total energy of the beam as it hits the ground is 0.
A television used to cost $9,000 and today it costs
$500 less, what is the percentage of
discount?
Percentage discount: 5 5/9 percent
