Explanation

Explanation

Electromagnetic waves are produced due to the flow of charges, specifically both positive and negative charges.

Explanation

Explanation

In transverse waves, the portion above the mean level is called wave crest.

The crest represents the highest point of the wave, while the trough is the lowest point below the mean level.

Explanation

Angular velocity (ω) is defined as the rate of change of angular displacement (θ) with respect to time (t). It can be calculated using the formula:

ω = v / r

Where:

v = linear velocity (in m/s)

r = radius of the circle (in m)

Given:

v = 250 m/s (linear velocity)

r = 100 m (radius of the circle)

ω = v / r

= 250 m/s / 100 m

= 2.5 rad/s

So, the angular velocity of the aircraft is 2.5 rad/sec.

Explanation

If Cp = 10 and Cv = 7, then the value of the gas constant R can be calculated as the difference between the specific heats at constant pressure and constant volume: R = Cp − Cv = 10 − 7 = 3.

Explanation

If the mass is doubled, both angular and linear momentum will be doubled according to the conservation of momentum principle.

Explanation

A refrigerator takes heat from low temperature and removes it to high temperature.

It transfers heat from the interior (low temperature) to the exterior (high temperature) to maintain a cool environment inside.

Explanation

The easiest way to shift the load between two parallel shunt generators is to adjust their field rheostats.

This adjustment changes the excitation of the generators, thereby controlling the distribution of the load.

Explanation

If a positive charge is placed between two negative charges, the system will be unstable due to the repulsive forces between like charges.