Answer:
The distance moved is 28 meters. The displacement has a magnitude of 4 meters in direction to the west.
Explanation:
The dog walks 28 meters, so it is the distance moved, which is a scalar magnitude, so it doesn't consider the position of the dog.
The displacement is a vectorial magnitude, which consider the final and initial positions. The distance between the final and initial positions is the magnitude of the displacement. The direction is from the initial point to the final point from East to West.
The number of neutrons does an atom of tungsten (W) has is
110 neutrons
<u><em> Explanation</em></u>
Atomic mass of tungsten = total number of protons and neutrons in a nucleus of tungsten.
Therefore the neutrons of tungsten = Atomic mass of tungsten- protons of tungsten
Atomic mass of tungsten = 183.84
Tungsten protons = 74
Tungsten neutron is therefore= 183.84 - 74 = 109.84 which is approximate
110 neutrons
Answer:
489 J
Explanation:
According to the first law of thermodynamics:-
Where,
U is the internal energy
q is the heat
w is the work done
From the question,
q = + 565 J (+ sign as the heat is being absorbed)
The expression for the calculation of work done is shown below as:
Where, P is the pressure
is the change in volume
From the question,
= 0.85 - 0.10 L = 0.75 L
P = 1.0 atm
Also, 1 atmL = 101.3 J
So,
(work is done by the system)
So,
Answer:
Echolocation
Explanation:
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