2. What is the frequency of a wave with a velocity of 30,000 m/s and a
wavelength of 15 meters? *
O
450,000 Hz
O
450,000 s
O
2000 Hz
2000 Db

If an object with an initial temperature of 300 k increases its temperature by 1°c every minute, by how many degrees fahrenheit will its temperature have increased in 10 minutes? (a) 6°f (b) 10°f (c) 18°f (d) 30°f

Two polarizers are oriented at 40∘ to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.