Answer:
(a) θ = 45° = 0.78 rad
(b) θ = 32.27° = 0.56 rad
(c) θ = 57.27° = 1 rad
Explanation:
When a vector is resolved into its rectangular components, the formula for the direction angle of the vector with positive x-axis is given as:
tan θ = Ay/Ax
θ = tan⁻¹(Ay/Ax)
(a)
Ax = 12 m
Ay = 12 m
θ = tan⁻¹(12 m/ 12 m)
θ = tan⁻¹(1)
<u>θ = 45° = 0.78 rad</u>
<u />
(b)
Ax = 19 m
Ay = 12 m
θ = tan⁻¹(12 m/19 m)
θ = tan⁻¹(0.6315)
<u>θ = 32.27° = 0.56 rad</u>
<u />
(c)
Ax = 12 m
Ay = 19 m
θ = tan⁻¹(19 m/12 m)
θ = tan⁻¹(1.58333)
<u>θ = 57.27° = 1 rad</u>
<u />
Answer:
Explanation:
Given
Diameter of Plates is D
distance between Plates is d
Energy Stored in the Plates is U
Suppose fixed Potential is V
Energy is given by

where C=capacitance

where A=area of Plates

Thus 
Keeping all other factors as same

For triple the Energy

divide 1 and 2 we get


Thus the diameter should be change to
times of original value
All you need to do is plug in 3 for t:h=2+70(3)−16(3^2)
and the final answer is 68.
Hello there.
<span>In general, if a wavelength is short;
</span><span>A- the energy and frequency are high
</span>