Answer:
c
Explanation:
wavelength shorter means energy is higher
the wavelength
radio waves>microwave>infrared rays>gamma rays
Answer:
180°
Explanation:
Friction, if it exists, ALWAYS opposes motion or attempted motion.
Answer: Polarization
Explanation: Polarization is the movement of electrons within a neutral object because of the electric field of a nearby charged object. It occurs without direct contact between the two objects.
For example, electrons in a metal plate can repelled by the negative charges in a plastic rod if the plastic rod is placed near the metal plate. The electrons move away from the plastic rod, thereby causing one side of the metal plate to be positively charged and the other side to become negatively charged.
Answer:
V = 6.65 [volt]
Explanation:
We must first find the power generated, power is defined as the amount of energy consumed or generated in a given time.
where:
P = power [w]
E = energy = 40 [J]
t = time = 30 [s]
![P =40/30\\P = 1.33[w]](https://tex.z-dn.net/?f=P%20%3D40%2F30%5C%5CP%20%3D%201.33%5Bw%5D)
Now we can calculate the voltage or potential drop by means of the power, the power is calculated by means of the product of the voltage by the current.
where:
V = voltage [volts]
I = current = 200mA = 0.2 [A]
![V = P/I\\V = 1.33/0.2\\V = 6.65 [Volt]](https://tex.z-dn.net/?f=V%20%3D%20P%2FI%5C%5CV%20%3D%201.33%2F0.2%5C%5CV%20%3D%206.65%20%5BVolt%5D)
Answer:
a resource
Explanation:
people and animals drink it and it keeps use from being dehydrated.
