Answer:problem 7
To calculate the number of atoms in a sample, divide its weight in grams by the amu atomic mass from the periodic table, then multiply the result by Avogadro's number: 6.02 x 10^23
problem 6
To solve the equation, you'll need to find the numbers for these values:
A = Total loan amount.
D = {[(1 + r)n] - 1} / [r(1 + r)n]
Periodic Interest Rate (r) = Annual rate (converted to decimal figure) divided by number of payment periods.
Number of Periodic Payments (n) = Payments per year multiplied by number of years.
problem 4
Bending moment is a function of the force x the distance. If the force is a point load it is simply the force x the distance [1] If the force is distributed or spread out you must integrate the forces and the distances [2]. Shear force is a function of the total force and the cross sectional area [2].
