A 1150 kg car is on a 8.70° hill. Using X-Y axes tilted down the plane, what is the y-component of the weight?

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

Unpolarized light whose intensity is 1.19 w/ is incident on a polarizer. (a) what is the intensity of the light leaving the polarizer? (b) if the analyzer is set at an angle of = 41.0∘ with respect to the polarizer, what is the intensity of the light that reaches the photocell?