There are several types of inclined planes. A is made by placing two inclined planes back to back. A is made by wrapping an inclined plane around a cylinder.
A.
wedge, lever
B.
lever, screw
C.
wedge, screw
D.
screw, wedge

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

[ou.03jthe pictures below show the wavelengths and intensities of electromagnetic radiations emitted by three stars, star 1, star 2, and star 3. intensity intensity- intensity- 1000 3500 6000 8500 11000 wavelength (a) star 1 1000 3500 6000 8500 11000 1000 3500 6000 8500 11000 wavelength (a) wavelength (a) star 2 star 3 which of these statements is correct about the color of the three stars? star 2 is white in color o star 2 is yellow in color star 1 and star 3 are yellow in color star 1 and star 3 are white in color

How do you determine the percent yield of a chemical reaction