Answer: Since the base of a cylinder is a circle, we substitute 2πr for p and πr2 for B where r is the radius of the base of the cylinder.
Explanation:
Answer:
Its A /1820
Explanation:
I got it correct on edge!
Answer:
B and C
Explanation:
B. In a given rock sample, the amount of Silicon-32 isotopes gets divided in half about every 170yrs.
This is the concept of half-life. Half life is the time take for half of a radioactive isotope to disintegrate. The shorter the half life the faster the isotope disintegrates.
From the question, we were told that it would take 170yrs for half of the isotope of Silicon to disintegrate to Phosphorus. This is the half life.
C. The half life can be used to determine the amount of Si-32 that has decayed from the time closure temperature was reached.
The closure temperature is very important in radioactivity. It is the temperature at which a system has cooled and there is no resulting disintegration of parent and daughter isotopes.
From first order kinetics, we know that the rate at which radioactive elements decay at any time is directly proportional to the number of radioactive atoms present. A knowledge of the half life helps to figure out the number of atoms that has decayed in time.
Answer:
Fish, shrimp prawns, crabs, shellfish and snails.
Others can be tigers, sharks, turtles, and many more.
Answer:
Lake, -- C) A(n) example of local base level include a stream and or
Terrace, -- E) The flat, broad area surrounding a stream.
Floodplain, -- D) A sweeping bend of a stream which is migrating laterally in a wide, flat valley.
Meander, -- A) A bend in a steep narrow bedrock valley
Base Level -- B) The lowest level to which a stream can erode Remnant of a former floodplain.
Explanation:
- A lake is an example of the be local level is surrounded by the land on all the sides and a terrace is a step-like formation and is gentle spring in nature and a floodplain is a plain that is formed by the and that is adjacent to the base of the rover walls.
- A meander is a sharp turn or bends in the normal course of a rover and the base level is level that the r0ver can erode at the maximum depth and ocean water are considered to be the grand base level.
