Answer:
speed = wavelength * frequency
Explanation:
Thenks and mark me brainliest :)
Answer:
In coin card experiment smooth card is used so that the card can slide easily from glass
Answer:
Density of 18.0-karat gold mixture is .
Explanation:
A mixture of 18 parts gold, 5 parts silver, and 1 part copper.
Let mass of gold be 18x
Let the mass of silver be 5x
Let the mass of copper be 1x
The density of gold =
The density of silver =
The density of copper =
Volume of the gold in the mixture =
Volume of the silver in the mixture =
Volume of the copper in the mixture =
Mass of the mixture = M = 18x+5x+1x =24x
Volume of the mixture =
Density of the mixture:
Answer:
Explanation:
The rotated angle is given by:
Since this is a quadratic equation it can be solved using:
Rewriting our equation:
Since we discard the negative solution.
3.00 is my correct answer this is what my teacher told me.thanks