It is a scaler because it’s only fully describes by a magnitude and a numerical alone
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Neutrons and protons make up a nucleus and they are in the middle of an atom. Electrons surround the nucleus. Opposite charges attract each other. Because of this, protons do not attract other protons and electrons do not attract other electrons. Instead, protons attract electrons and electrons attract protons. When someone looks at the elements on the periodic table, they can see how many protons are present by looking at the atomic number. Since atoms have to have an equal amount of each, if an element contains 36 protons, it also has 36 electrons.
Answer:
ΔS = 7.618 J/K
Explanation:
The entropy change associated to an isothermal process is:
ΔS = 
We can calculate Q (heat) how:
Q = nRTln(
)
Where Vf = 2.5v
Vi = v
R = 8.314J/mol.k (Constant of ideal gases)
n: Number of moles = 1 mol
Then
Q = nRTln(2.5)
ΔS = 
ΔS = (1)(8.314)ln(2.5)
ΔS = 7.618 J/K
It depends if the student can concentrate on his work while listening to music
In other cases it can also help improving grades by avoiding distractions
Answer:
v = 5.6 m/s
Explanation:
Given,
The mass of the car, m = 1500 kg
The kinetic energy of the car, K.E = 23,500 J
The kinetic energy of the of an object is given by the relation,
K.E = ½ mv²
Substituting the given values in the equation,
23,500 = ½ x 1500 x v²
v² = 23500/ 750
= 31.33
v = 5.6 m/s
Hence, the K.E of the car is, v = 5.6 m/s