Answer:
A. 1 in³ / 16.4 cm³
Explanation:
Inches is an imperial unit while centimeter is a metric unit.
1 inch = 2.54 cm
⇒1 inch³ = 2.54³
⇒1 inch³ = 2.54×2.54×2.54
⇒1 inch³ = 16.38 cm³ = 16.38 cc
So,
So, 1 in³ / 16.4 cm³ conversion factor should be used.
If he wants to increase power, force must increase and decrease time.
I think it might be D because all waves travel through a medium. I might be wrong though.
Work = Force * distance
W = Fd
Given F = 500 N, d = 10 m
W = (500)(10)
W = 5000 J
The work done is 500 Joules. The time of 4 s is irrelevant in this case.
Answer:
Inclined plane.
Explanation:
Geometrically, a screw is a narrow inclined plane that is wrapped around a cylinder. Like the other simple machines a screw can amplify force; a small rotational force (torque) on the shaft can exert a large axial force on a load.
A screw is a cylinder with a head (solid top) at one end and a pointed tip (like a nail) at the other end.
The mechanical advantage of the screw depends on the space between the threads and the length (and thickness) of the screw. The closer the threads are, the greater the mechanical advantage. It is easier to drive a screw into an object if the thread spacing is smaller.