Answer:
The formula for kinetic energy is K = 1 2 m v 2 K = \dfrac{1}{2}mv^2 K=21mv2
Answer:
0.0006091222 m
Explanation:
q = Charge = 42 pC
V = Voltage = 620 V
= Permittivity of free space =
Electric potential is given by (at r = R)
The radius of the drop is 0.0006091222 m
The second law of thermodynamics states that whenever energy changes occur, DISORDER always increases.
the awnser is a and i hope that helps
Answer:
a.6.5025 J
b.6.5025 J
Explanation:
We are given that
Mass of pellet,m=0.27 g=
1 kg=1000 g
Spring constant,k=1800 N/m
x=8.5 cm=
1m=100 cm
a.Potential energy stored in the compressed spring is given by
P.E=
b.By using law of conservation of energy
P.E of spring=K.E of the pellet
K.E of the pellet=6.5025 J