Hi there!
Using the equation for the electric field produced by an infinite sheet of charge:
E = Electric field strength (150 N/C)
σ = Surface charge density (? C/m²)
ε₀ = Permittivity of free space (8.8542× 10⁻¹² C²/Nm²)
We can rearrange the equation to solve for the surface charge density (charge per unit area)
Answer:
Explanation:
Given that
V= 12 V
K=3
d= 2 mm
Area=5.00 $ 10#3 m2
Assume that
$ = Multiple sign
# = Negative sign
We Capacitance given as
For air
Net capacitance
C=C₁+C₂
We know that charge Q given as
Q= C V
The mirror formula for curved mirrors is:
where
f is the focal length of the mirror
is the distance of the object from the mirror
is the distance of the image from the mirror
The sign convention that should be used in order to find the correct values is the following:
-
: positive if the mirror is concave, negative if the mirror is convex
-
: positive if the image is real (located on the same side of the object), negative if it is virtual (located on the opposite side of the mirror)
This information is valuable because Managers can use this customer data each month to figure out whether a larger or smaller percentage of visitors are buying clothes there.
<h3>What is the percentage of a number?</h3>
It is the relative value that represents the hundredth part of any number for example 2% of any number represents, 2 multiplied by the 1/100th of that number.
A clothes business contains sensors that count the number of customers entering the store and cash registers that count the number of transactions made daily.
Thus, data is useful because Managers may use it to determine if a greater or lesser proportion of customers are purchasing clothing each month. Therefore the correct answer is option A.
Learn more about the percentage here,
brainly.com/question/24159063
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Let the cannonball be thrown at a height of h above ground.
Then the potential energy of the ball is
V = m*g*h
where
m = the mass of the ball
g = 9.8 m/s²
Also, the kinetic energy of the ball is
K = (1/2)mu²
where
u = 5 m/s, the vertical launch velocity.
Ignore wind resistance.
Because the total energy is preserved, the total energy (n the form of only kinetic energy) when the ball strikes the ground is
(1/2)mV²
where V = vertical velocity when the ball strikes the ground.
Expressions for both the initial and final energy are equal regardless of whether the ball s thrown downward or upward.
Therefore there is no difference in the landing speed.
Answer: There is no difference.
