Answer:A)0.5 and 2 mm
Explanation:
Given
radius R of wire is 1 mm
magnetic Field at edge(surface)
Magnetic Field at a distance r' from Center is
and we know
where
Permeability of free space
distance from center
For
---1
For
---2
Divide 1 and 2
If r is inside the wire then
for
---3
for
----4
Divide 3 and 4
Answer:
C 0.85 j/g*k
Explanation:
The specific heat capacity of a material is given by:
where
Q is the amount of heat supplied to the object
m is the mass of the object
is the increase in temperature of the object
For the object in this problem, we have
m = 117 g is the mass
Q = 1200 J is the heat supplied
is the increase in temperature
Substituting into the formula, we find the specific heat:
I need more information to further answer this question.
Answer:
The gravitational potential energy of the skydiver=
Given:
Mass of the skydiver=80kg
Distance of the skydiver from the earth=100m
To find:
Gravitational potential energy of the skydiver
<u>Step by Step Explanation:</u>
Solution:
According to the formula, Gravitational Potential Energy (GHE) is calculated as
Where m= Mass of the skydiver
g=Acceleration due to gravity
h=Distance of the skydiver from the earth
Substitute the known values in the above equation we get
Result:
Thus the gravitational potential energy of the skydiver is =
Answer:
a laser sight for a weapon?
Explanation:
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