A 986 kg car goes over a big hill. At the top of the hill, the force of the road on the car is half its weight. Construct an FBD and calculate the amount of net force on the car at the top of the hill.

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?

The photo shows sugar dissolved into a solution with excess sugar at the bottom of the jar this type of solution is classified as a. unsaturated b. compound c. saturated d. plasma

Notice how they put future which of the clouds shown would indicate a possible future rain storm? a) b) c) d)