Answer: $4.55
Step-by-step explanation: 7% is equal to 0.07 so you can multiply the price of the book by 0.07 to get the sales tax in dollars, $4.55.
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.
Answer:
D
Step-by-step explanation:
I hope this helps you out!
Answer:
half of a number is 15
Step-by-step explanation:
An equation must contain an equality sign.
The third option is the only phrase that can be represented as an equation: 
Answer:
o-
Step-by-step explanation:
