An atomic nucleus . . .
-- contains all of the atom's positive charge
-- contains almost all of the atom's mass
-- contains none of the atom's negative charge.
From the calculations, the speed of sound in this case is 16.9 m/s.
<h3>What is an echo?</h3>
The term echo has to do with the reflection of sound waves. Sound is a mechanical wave.
we know that the speed of sound is obtained from;
V = 2x/t
x = distance covered
t = time taken
V = 2(500)/59
v = 16.9 m/s
The error in the experiment could come from;
- Lack of precise time measurement
- Error can also arise from the environment of the experiment
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Answer:
Protons, Neutron and Electrons.
Explanation:
An atom comprises of three main subatomic particles, the protons (define the type of element), the neutrons and the electrons.
Protons and neutrons are clustered together in the centre with the electrons orbiting around the cluster.
Protons have a positive charge, Neutrons have no charge and Electrons have a negative charge.
