Gil

Natural rubidium has an average mass of 85.4678 amu and is composed of isotopes 85Rb (mass = 84.9117 amu) and 87Rb. The ratio of the isotopes 85Rb/87Rb in natural rubidium is 2.591. What is the mass of 87Rb? Let x be the fraction of the Rb atoms that are...

Assume you had a very magnified view of a solution of HCl that allowed you to "see" the HCl. Draw this magnified view. If you dropped in a piece of magnesium, the magnesium would disappear and hydrogen gas would be released. Draw this out using symbols to...

An electron with a speed of 3.00X10^6 m/s moves into a uniform electric field of magnitude 1.00X10^3 N/C. The field lines are parallel to the electron’s velocity and pointing in the same direction as the velocity. How far does the electron travel before i...

take 5.6/2=2.8 convert 2.8miles into meters=4506 9.8/4506= .002174878 now squaroot that and you wil getthe answer which is (.0466)

Total distance is 6.3+4+3+5= 18.3 blocks Magnitude is 12.4b tan^-1(-9.9/-7.4)= 53 but since it is in third quadrant, add 180 degrees to get a final angle of 233 degrees.

Draw two number lines that show 0.20 and 1/5 are equivalent

Thank you big time