The specific heat of acetic acid is 2.18 J/g°C. How many joules of heat are needed to raise the temperature of 47.0 g of acetic acid from 25.5
°C to 91.6 °C? Round you answer to the nearest tenth.
J

Suppose you have three polarizing filters, with the second at an angle of 42∘ to the first and the third at an angle of 90∘ to the first. by what perfect will the original intensity of unpolarized light be reduced to after passing through all three filters?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.

Coal contains energy. a. light b. kinetic c. chemical d. mechanical