0.262 m
0.664 m
0.819 m
0.455 m
Correct answer is D
pressure = p, depth/height = h, density = d, gravity = g
p = hdg
\(\frac{p}{dg} = h\)
\(\frac{9100}{10 * 2000} = h\)
0.455m
The potential energy in an elastic string of force constant k, which has an extension X is?
kX
KX\(^{2}\)
½KX\(^{2}\)
½K
Correct answer is C
elastic potential energy[Ee] = \(\frac{1}{2} ke^2\).
increases non-linearly with measuring temperature
increases linearly with increasing temperature
decreases linearly with increasing temperature
decreases non-linearly ith measuring temperature
Correct answer is A
The vapor pressure of any substance increases non-linearly with temperature, often described by the Clausius–Clapeyron relation.
As the temperature of a liquid or solid increases its vapor pressure also increases.
Conversely, vapor pressure decreases as the temperature decreases.
i.e. vapor pressure is directly proportional to temperature
For a pear-shaped conductor shown above, the concentration of charge on the outside is highest at?
X
Z
Y
K
Correct answer is A
The electric field at the surface of the conductor is perpendicular to the surface.
Charge accumulates, and the field is strongest, on pointy parts of the conductor.
2400 J
9600 J
1500 J
1200 J
Correct answer is A
Energy = power x time
Power = voltage x current.
Energy = voltage x current x time
Energy = 40 x 0.5 x 60 x 2
→ 2,400j
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