Answer: Radio waves is a type for wave that is used to transmit television and radio programmes, while microwaves can be used for phone communication.
Explanation: Radio waves and microwaves are types of electromagnetic radiation that has the longest wavelengths and the lowest frequency and it carries the least amounts of energy. This causes it to interact with mostly nothing as it travels, therefore it is just easier to transmit information as there is no disturbance in the transmittion.
Kinetic energy and temperature decrease; thermal energy increases.
B.
Kinetic energy, temperature, and thermal energy decrease.
C.
Kinetic energy and temperature increase; thermal energy decreases.
D.
Kinetic energy, temperature, and thermal energy increase.
i think its D, but im not sure.
2) paper burning
3) ice cream melting
4) a nail rusting
Answer: 3
Explanation:
Answer:
F= 25/2 = 12.5N
Explanation:
When you use a compound pulley the force required depends on the mechanical advantage of the compound pulley. This is known as rate of loss of distance or the ratio of the force to the load.
M.A = Effort distance /Load distance. OR M.A = Load/Effort
The light waves reflecting off a red stop sign longer than the waves reflecting off a Violet colored jacket.
The visible spectrum is composed of seven wavelengths. These wavelengths are red, orange, yellow, green, blue, indigo, violet. The wavelengths of these waves decrease in this order.
This means that the wavelength of red light is longer than the wavelength of violet light therefore the light waves reflecting off a red stop sign longer than the waves reflecting off a Violet colored jacket.
Learn more: brainly.com/question/14281129
The charge of a droplet having 3 extra electrons is –3
Let the number of proton and electron of the droplet at ground state be 1
Proton = 1
Electron = 1 + 3 = 4
Charge=?
The charge on the droplet can be obtained as follow:
Charge = Proton – electron
Charge = 1 – 4
Therefore, the droplet has a charge of –3
Learn more: brainly.com/question/6123830
Answer:
negative
Explanation:
Each droplet should have an integer multiple of the elementary charge. The smallest charge measured is the charge of an electron.