Answer:
3.6 x 10^8 V
Explanation:
Q = 4 m C = 4 x 10^-3 C
r = 5 cm = 0.05 m
The formula for the potential at the surface is
Vs = K Q / r = (9 x 10^9 x 4 x 10^-3) / 0.05 = 7.2 x 10^8 V
The formula for the potential at the centre is
Vc = 3/2 Vs
Vc = 1.5 x 7.2 x 10^8 V = 10.8 x 10^8 V
The difference in potential is
V = Vc - Vs = 10.8 x 10^8 - 7.2 x 10^8 = 3.6 x 10^8 V
Silicate minerals<span> make up over 90% of Earth's crust.</span>
Answer:
Kinetic energy at maximum height is zero.
Explanation:
At maximum height, the velocity is zero. Thus, the kinetic energy is also zero. This can further be seen as illustrated below:
Let the mass of the object be = m
Velocity (v) at maximum height = 0 m/s
Kinetic energy (KE) at maximum height =?
KE = ½mv²
KE = ½ × m × 0²
KE = ½ × m × 0
KE = 0
From the illustration above, we can see that the kinetic energy at maximum height is zero.
Copper is most
likely the best conductor of heat.
Copper is a chemical
element with symbol Cu and atomic number 29. It is a soft, malleable and
ductile metal with very high thermal and electrical conductivity. A freshly
exposed surface of pure copper has a reddish-orange color.
The correct answer between all
the choices given is the second choice or letter B. I am hoping that this
answer has satisfied your query and it will be able to help you in your
endeavor, and if you would like, feel free to ask another question.
