9. According to Fourier's theorem, which of the frequencies in Question 7 will you likely need to add to make up the complex wave of Figure 7-30?
a) 2.5, 5.0, 7.5, ...,Hz
b) 2.5, 7.5, 12.5, . . . , Hz
c) 5, 10, 15, . . . , Hz
d) 5, 15, 25, ...,Hz
e) 10, 20, 30,...,Hz

if you already have the answer to (a), then just work out how many periods there are in 1 minute, and that's the answer to (c).

the temperature and the pressure affect solubility. temperature affects by changing the properties of the solvent. the increase in pressure increases solubility, the decrease in pressure decreases solubility.

ok

explanation:

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.