Answer: Protons
Explanation: The atomic number is the number of protons that are in the nucleus of an atom. Each element on the periodic table is defined by the number of protons. In other words, the protons/atomic number determines what element it is. Protons carry a positive charge.
<span>The best response would be that theories are not opinions. While laws and theories are similar, laws tend to be a collection of theories about the same phenomenon. Laws can be expressed as math formulae, but more often they're in the form of "if-then" statements. Laws and theories both have to be rigorously tested before they reach these classiffications.</span>
True, the wavelength dies down due to high frequency and low amptitude.
Answer:
25.1%
Explanation:
Let's say m is the true weight and M is the weight of the counterweight.
The original distance between the pans and the center is 25.1 cm / 2 = 12.55 cm. The fulcrum is then moved 1.4 cm towards the counterweight.
Sum of the moments about the fulcrum:
m (12.55 + 1.4) − M (12.55 − 1.4) = 0
13.95 m − 11.15 M = 0
13.95 m = 11.15 M
M / m = 13.95 / 11.15
M / m = 1.251
The true weight is being marked up by 25.1%.