The expected speed is v = 85.5 km/h
v = 85.5 km/h = (85.5 km/h)*(0.2778 (m/s)/(km/h)) = 23.75 m/s
If there is an uncertainty of 2 meters in measuring the position, then within a 1-second time interval:
The lower measurement for the speed is v₁ = 21.75 m/s,
The upper measurement for the speed is v₂ = 25.75 m/s.
The range of variation is
Δv = v₂ - v₁ = 4 m/s
The uncertainty in measuring the speed is
Δv/v = 4/23.75 = 0.1684 = 16.84%
Answer: 16.8%
Answer:
Explanation:
Oxygen has eight eletrons and six valence electrons, giving it the electron configuration of .
Given parameters:
Number of protons = 1
Number of electrons = 1
Number of neutrons = 1
unknown:
Total charge = ?
Atoms are made up of elementary particles of protons neutrons and electrons.
Protons are the positively charged particles in an atom
Electrons are the negatively charged particles
Neutrons do not carry any charges
To find the total charge on an atom; simply find the difference between the number of protons and electrons.
Total charge = Number of protons - number of electrons
= 1 - 1
Total charge is 0
Therefore, the total charge is zero, 0
