No because light travels in waves and can not stop 3 feet away an having power supplied like that
false. clinical deals with patients and treats the.
research looks at root causes which clinical applies
The amount of heat needed to melt the block of lead is 
Explanation:
The amount of heat needed to melt a solid substance already at its melting point is given by the equation
where
m is the mass of the substance
is the specific latent heat of fusion
In this problem, we have a block of lead already at its melting point, 
. Its mass is
m = 200 g = 0.2 kg
and its specific latent heat of fusion is
Therefore, the amount of heat needed for the block to completely melt is
Learn more about specific heat:
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Scientist would check what other scientists have said before they come up with their own scientific question. That way they can record the results from the others and compare them with their own findings when they conduct their own experiments and record the findings.
Answer:
a. Decreases
b. Increases
c. Remains the same
d. Increases
Explanation:
a. Capacitance is given by c= Ak€/d
where A is conductivity plate with Area
K is a constant
€ is dielectric with permittivity.
d is the distance
b. Potential difference is given by
V = Ed, since, the electric field remains the
same, the potential diterence also increases with increase in distance.
Since the capacitance depends upon the distance, and all the other factors are kept constant, the capacitance decreases.
c. Electric field remains the same because charge on the
plate remains the same.
d. since electric field remains the same and capacitance decreases, the energy increases.
E= 1/2c * Q^2
