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Bismuth-208, which has an atomic mass of 208u and 83 protons in the nucleus, decays through the emission of 2 alpha particles and a beta-positive particle. What isotope results from this decay?

20883Bi ==> xyZ + 42a + 42a + 01B x = 208 - 8 = 200 y = 83 - 5 = 78 Proton number = 78 ther...

DL
Answered by Danny L. Physics tutor
5367 Views

During the redox reaction in glycolysis, which molecule acts as the oxidising agent?

The oxidation of glyceraldehyde 3-phosphate (G3P), a three-carbon sugar, yields energy. In this oxidation, electrons and H+ are transferred to NAD+, forming NADH, and a phosphate group is attached to the ...

DA
Answered by Daniel A. Biology tutor
7921 Views

Why is internal temperature regulation an important homeostasis?

Internal temperature of your body must be tighly controlled. The key processes of your body are driven by enzymatic activity and there is an optimal temperature at which these operate. If body temperature...

AI
Answered by Archie I. Biology tutor
3966 Views

Factorise and solve x2 - 8x + 15 = 0.

Factorise and solve x2 - 8x + 15 = 0.

When factorising there are 3 things to look for;

  1. A common factor in each component of the equation. In this case there are no commo...

OR
Answered by Olivia R. Maths tutor
20262 Views

Using standard formulae, derive an expression for the final speed of a falling object in terms of its change in height. Assume zero air resistance or other resistive forces.

Ek = (1/2)mv2

Ep = mg(dh)

Set these equal to each other, because of conservation of energy:

(1/2)mv2 = mg(dh)

Cancel the mass:

<...
DL
Answered by Danny L. Physics tutor
1990 Views

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