Answer:
Biologist
Explanation:
Not sure, but I think that is right
Answer:
Sudden decrease in the velocity at the boundary.
Explanation:
The shadow zone is the zone of the earth from angular distances of 104° to 140° from a known earthquake that does not directly receive any P waves. Now, this shadow zone occurs as a result of S waves getting stopped completely by the liquid core and the P waves being refracted by the liquid core.
From earlier seismic discoveries, this boundary which is the shadow zone that does not directly receive any P-waves was found to be due to the fact that the P-waves were refracted inwards as a result of the sudden decrease in velocity at the boundary.
Answer:
THE HALF LIFE OF THE RADIOACTIVE PHOSPHORUS-32 IS 1.15 DAYS.
Explanation:
Half life is the time required for half of a given sample of a radioactive substance to decay. It is represented as t1/2.
Nt = No e^-yt
Nt = 27.7 %
No = 100%
t = 26.5 days
y = decay constant
t1/2 = half life = unknown
So therefore,we solve for the decay constant and then using the formula Half life = Ln 2/ decay constant, we solve for the half life.
Nt = No e^-yt
27.7 = 100 e ^-26.5 y
0.277 = e^-26.5 y
Take the natural log of both sides
Ln 0.277 = -26.5 y
y = Ln 0.277/ -26.5
y =-1.2837/ -26.5
y =4.84 *10 ^-2
Since half life = Ln 2 / y
Half life = ln 2 / 4.84*10-2
Half life = 1.1456 days.
Hence, the half life for the radioactive phosphorus -32 is 1.15 days.
apparently it’s saline water.
Answer:The majority of chemical processes are reactions that occur in solution. Important industrial processes often utilize solution chemistry. "Life" is the sum of a series of complex processes occurring in solution. Air, tap water, tincture of iodine, beverages, and household ammonia are common examples of solutions.
A solution is a homogenous mixture of substances with variable composition. The substance present in the major proportion is called the solvent, whereas the substance present in the minor proportion is called the solute. It is possible to have solutions composed of several solutes. The process of a solute dissolving in a solute is called dissolution.
Explanation: