Use the formula:
, where P is power (watts), I is current (amperes) and V is potential difference (volts).
For the first heater:
For the second heater:
For the third heater:
Lithium shares more properties with Sodium, because they have the same number of valence electrons (one). Choice 1 is correct. Hope this helps!
Answer:
Transverse wave- Back and forth at right angles to the direction of the wave arrow.
longitudinal wave- bask and forth in the direction of the motion of the motion of the wave.
electromagnetic wave- two alternating waves moving at right angles to each other.
Explanation:
In a longitudinal wave, the particles vibrate at right angles in reference to the wave motion.
In a transverse wave, the particles vibrate parallel to the wave motion
Electromagnetic waves occur as a result of the interaction between two waves and are normally transverse in nature.
The angular acceleration of a pulley is described under the equation,
So things clearing,
b) For point B it is necessary to make a sum of Forces,
In this way,
(1)
For block 2, we have the following relationship,
(2)
So,
(3)
Substituting (1) and (2) in (3)
So,
<em>**Note that</em> 
c) For this point we need to use (1)
using (2)
