Answer:hen frequency increases more wave crests pass a fixed point each second. That means the wavelength shortens. So, as frequency increases, wavelength decreases. The opposite is also true—as frequency decreases, wavelength increases.
Explanation:brainliest please
Answer:
Grid
Explanation:
The number of electrons attaining the fluorescent light is regulated by the grid in a cathode ray tube.When the heater is supplied with current, it allows the electrons to emit from the cathode. Before approaching the anode the electrons pass through grid opening. The number of electrons attempting to reach the anode may also be regulated by managing the number of electrons passing through the grid.
Answer:
r = 5.08 m
Explanation:
The electric force of attraction or repulsion is given by :
We need to find how far above the electron would the proton have to be if you wanted to hold up an electron against the force of gravity by the attraction of a fixed proton some distance above it.
So, the force from the proton is balanced by the mass of the electron.
r is distance
So, proton have to be at a distance of 5.08 meters above the electron.
The increase in temperature of the water is
The total mass of the water is the product between its volume and its density
And so we can find the amount of heat released by the pebble to the water, because this is equal to the amount of heat absorbed by the water, which is
Answer:
5.68 x 10¹⁵ km
Explanation:
Recall that 1 lightyear = 9.461 x 10¹² km
hence
600 lightyears
= 600 x 9.461 x 10¹²
= 5.6766 x 10¹⁵
= 5.68 x 10¹⁵ km (rounded)