Answer:
0.729 meters
Explanation:
d=(V0)t+(1/2)at^2
d=height of shelf
a=9.8 m/s^2 (acceleration due to gravity)
V0=0 m/s (initial downward velocity)
t=0.38586 seconds (1.173 meters/3.04 m/s)
Answer:
45.6 cm
Explanation:
Let x (m) be the length that the spring is compressed. We know that when we drop the mass from 4.84 m above and compress the springi, ts gravitational energy shall be converted to spring potential energy due to the law of energy conservation


where h = 4.84 + x is the distance from the dropping point the the compressed point, and k = 24N/cm = 2400N/m is the spring constant, g = 9.81 m/s2 is the gravitational acceleration constant. And m = 4.8 kg is the object mass.



or 45.6 cm
Answer:
90 degree
Explanation:
Electric field line is vertical to the electric field line.
I read it’s a unit of energy
Answer:
B is the best answer for this question