Density = mass/volume
D= m / v
D= 57 / 4.2
D= 13.6 g/cm^3
Answer:
Match with A) Single fixed pulley, B) block & tackle, or C) single moveable pulley
changes the direction of effort; input is 1/2 the distance; or system of pulleys
Explanation:
Answer:
U=1.44 J
Explanation:
Given that
m = 3.7 kg
K = 450 N/m
X= 0.08 m
We know that spring stored potential energy(U) and this potential energy given as

By putting the values


U=1.44 J