Answer:
x = √30 or -√30
Step-by-step explanation:
480 - 16x^2 = 0
divide both sides by 16
30 - x^2 = 0
-x^2 + 30 = 0
-x^2 = -30
X^2 = 30
x = ± √30
x = √30 or -√30
20*2=40
40*50=2000
2000/60=33.33
about 33 hours by lifting by hand
Answer:
By using the energy conservation law, the input energy must be equivalent to the output energy. If you measured output energy is lower than your input energy, you have lost that difference of energy either in mechanical inefficiency (friction, heat, etc.) or an energy sink.
Thus, the energy not output by the machine is lost in the process within the machine.
Cheers.
Answer:
I cant see anything is it possiable for you go write it out
Step-by-step explanation:
I have no clue but you could ask your teacher to help u with it no jk the answer is -7
