Answer:
B
Explanation:
because, convection is the transfer of heat between fluid substances/materials
Electric current in a solid metal conductor is caused by the movement of electric charge. An electric current is the flow of electric charge. An electron current, the flow of electrons, contributes to an electric current since the electron 'carries' negative electric charge. The flow of ions also contributes to an electric current in, for example, the electrolyte of an electrochemical cell.
Answer:
The rock will rise H/6 units high on earth
Explanation:
In order to find the height to which rock rises, we use 3rd equation of motion. The 3rd equation of motion is as follows:
2gh = Vf² - Vi²
h = (Vf² - Vi²)/2g
where,
h = height
Vf = Final Velocity
Vi = Initial Velocity
g = acceleration due to gravity
<u>ON MOON</u>:
On moon:
h = H
Vf = 0 m/s (rock stops at highest point for a moment)
Vi = Vi
g = -(1/6) g (negative sign due to upward motion)
Therefore,
H = (0² - Vi²)/[-(2)(1/6)(g)]
H = 3Vi²/g
H/3 = Vi²/g ------ equation (1)
<u>ON EARTH</u>:
On earth:
h = ?
Vf = 0 m/s (rock stops at highest point for a moment)
Vi = Vi (same initial velocity)
g = - g (negative sign due to upward motion)
Therefore,
h = (0² - Vi²)/(-2g)
h = Vi²/2g
h = (1/2)(Vi²/g)
using equation (1), we get:
h = (1/2)(H/3)
<u>h = H/6</u>
