Answer:
a) Wavelength .
Explanation:
Visible light is comprised of all the seven colors Violet , Indigo , Blue , Green , Yellow and Red .
Color depends up on the wave length of the light .
For example a red ball appears red because it absorbs wavelengths of all the other colors and reflects only wavelengths corresponding to red color.
Answer:
The strength of an electromagnet can be increased by increasing the number of loops of wire around the iron core and by increasing the current or voltage. You can make a temporary magnet by stroking a piece of iron or steel (such as a needle) along a permanent magnet.
There are three things that dictate how strong this field is:
1.How much kinetic energy you provide the wire
Answer is changed by pushing more current through the wire.
2. How permeable our magnetic rod is
Answer is changed by picking a more magnetic media
3.How many little magnetic fields you generate to make the net, large magnetic field
Answer is changed by increasing the amount of turns of the wire. More turns, more little fields, strong big field
P = mv
p = (1600kg)(20m/s)
p = 32000 N
(3.2x10^4 N)
Answer: The answer is D. KNO3
Explanation:
The graph shows that the KN03 going straight up from the temperature sign so you reversed that so that it will make it to 90°C to 30°C