Inertia<span> and Mass. </span>Newton's first law of motion<span> states that "An object at rest stays at rest and an object in </span>motion<span> stays in </span>motion<span> with the same speed and in the same</span>direction<span> unless acted upon by an unbalanced force." Objects tend to "keep on doing what they're doing."</span>
Answer: ro= 0.113
Explanation:
Data Given: Where D= Outer diameter
d= Inner diameter
ri= 0.4cm
r°= ?
Charge 1 and Charge 2 (q) = K i.e constant of proportionality
Where K = 1/4πe°. er; 3.2, ep; 2.6 ( Relative permeability)
(a) Approximate value size for the coaxial cable
C= 7.354 x Er/ Log 10 (D÷d)
C = 7.354 x 3.2/ Log 2.6
= 23.5/0.419
= 56.0cm
(b) Outer radius r° when dealing with 20kv
r°= impedance value (pie ÷ 20) d^2
r° = 2( π÷20)0.6^2
= 2( 0.1571) 0.36
r° = 0.113
(c) Assuming The Maximum Electric Field; Fmax = 25%
Given Vin = 25x10^6v/m, Vout = 20x 10^6 v/m.
Impedance p= √Vin x vout/ Z° (i)
Where Z° = electric surge ~25%
Subtituting Value of Vin & Vout In Equation (i)
P = 2.05x10^-8ohms
Note : Length of a conducting material determines the strength of dielectric material between the coaxial cable
Answer:
C. Its velocity is perpendicular to its acceleration
Explanation:
Because acceleration is always perpendicular to the velocity when the velocity will change direction without change it's magnitude
The answer depends on how you look at light. However, in the most accurate approach, gaps do not form between photons as light spreads out. Light is made up of tiny fundamental bits called photons. A photon is a quantum object. As such, a photon acts a little like a particle and a little like a wave, but is actually something more complex.
If you look at light as a collection of little particles, you could say that dimmer light has its photons more spread out. But, they are not spread out in space while traveling. Rather, they are spread out in time and space as they are received. A sufficiently sensitive photon counter device can detect the reception of light one photon at a time. Shine light at such a device and it does not receive the light as a steady stream. Rather, it receives the light as a series of discrete bundles of energy separated by gaps in time. Similarly, shine light at a sufficiently sensitive array of photon counters, and it receives the light at point locations with spatial gaps between them. When viewed in this way, a light beam always has gaps between its photons, whether the light be very bright or very dim. Very dim light beams have larger gaps in time and space between the reception of each photon compared to brighter light beams. Light from a very distant star has spread out over a very large area and become very dim in the process. The gaps between photon reception from a very distant, dim star are therefore large. Again, it is only the reception time and locations that has gaps. There are no gaps in space between the photons as they