English:
Applications of echoes
Echoes are used by bats, dolphins and fisherman to detect an object / obstruction. They are also used in SONAR (Sound navigation and ranging) and RADAR(Radio detection and ranging) to detect an obstacle.
Tagalog:
Mga aplikasyon ng dayandang
Ang mga dayandang ay ginagamit ng mga paniki, dolphin at mangingisda upang makita ang isang bagay / sagabal. Ginagamit din ang mga ito sa SONAR (Sound navigation and ranging) at RADAR(Radio detection and ranging) upang makita ang isang balakid.
Explanation:
Sana makatulog ❤️
Electrical would be the energy that involves the flow of positive charges.
Answer:
8.25 V
Explanation:
We can ignore the 22Ω and 122Ω resistors at the bottom. Since there's a short across those bottom nodes, any current will go through the short, and none through those two resistors.
The 2Ω resistor and the 44Ω resistor are in parallel. The equivalent resistance is:
1 / (1 / (2Ω) + 1 / (44Ω)) = 1.913Ω
This resistance is in series with the 12Ω resistor. The equivalent resistance is:
1.913Ω + 12Ω = 13.913Ω
This resistance is in parallel with the 24Ω resistor. The equivalent resistance is:
1 / (1 / (13.913Ω) + 1 / (24Ω)) = 8.807Ω
Finally, this resistance is in series with the 4Ω resistor. The equivalent resistance of the circuit is:
8.807Ω + 4Ω = 12.807Ω
The current through the battery is:
12 V / 12.807Ω = 0.937 A
The voltage drop across the 4Ω resistor is:
(0.937 A) (4Ω) = 3.75 V
So the voltage between the bottom nodes and the top nodes is:
12 V − 3.75 V = 8.25 V
Answer:
fem = -A β
Explanation:
Faraday's law gives the induced electromotive source (emf)
fem =
the magnetic flux is
= B. A = B A cos θ
the bold are vectros. In this case the normal to the ring is parallel to the magnetic field so the angle is zero cos 0 = 1, also the area of the ring is constant
fem = -A
we carry out the derivative of the function B = α + β t
fem = -A β
so we see that there is an electromotive force in the ring.