kela

Neutron diffraction is an important technique for determining the structures of molecules. Calculate the velocity of a neutron needed to achieve a wavelength of 0.989 Å. i used the equation and got 4.37, but its not right! pleas help someone

find the derivative of 9^8^x^2

Use implicit differentiation to find an equation of the tangent line to the curve at the given point. x2 + 2xy − y2 + x = 17, (3, 5) (hyperbola)

A common inhabitant of human intestines is the bacterium Escherichia coli. A cell of this bacterium in a nutrient-broth medium divides into two cells every 20 minutes. The initial population of a culture is 51 cells. (a) Find the relative growth rate. (As...

A sample of a radioactive substance decayed to 94.5% of its original amount after a year. (Round your answers to two decimal places.) (a) What is the half-life of the substance? (b) How long would it take the sample to decay to 65% of its original amount?

The radius of a sphere is increasing at a rate of 2 mm/s. How fast is the volume increasing when the diameter is 80 mm? mm^3/s

I do not understand why so many people of different race is hating the fact that Obama is the President. You might as well accept it and as in my opinion Bush did put us in the recession and Obama can not put the United states in further debt or teouble a...

no its 9 to the power 8 to the power x to the power 2

asserted national authority over the states

am against 'boys should not help in the kitchen'

boys should help because ,their wives wouldn't be able to do anything when they are sick because their weak to even standup to do something.