Answer:
(a) more than
Explanation:
Conduction:
Transfer of heat due to direct contact between two mediums at different temperatures, without having any of the bodies traveling. Therefore, conduction heat transfer occurs by the transfer of momentum (molecular) from always the same group of molecules in one medium to another group of molecules in another medium.
Example: Heat transfer INSIDE a solid.
Convention:
Transfer of heat or mass due to at least one traveling medium, where the transfer of momentum is not bounded anymore to the same groups of molecules. Molecules moving to transfer their momentum and keep flowing to the next group, also allowing other molecules behind to do the same. Example: heat transfer by the wind.
Hence, the Mass transfer rate in convection is <u>more than</u> mass transfer in conduction
Answer: 0.1 km
Explanation:
1) Multiply the rate (speed) by the time: 2 cm / year × 5,000 year = 10,000 cm
2) Convert cm to km, using these well know conversion factors:
1 km = 1,000 m
1 m = 100 cm
⇒ 10,000 cm × [1 m / 100 cm] × [1 km / 1,000 m] = 0.1 km
In order for the rock to undergo erosion, the rock must be igneous
