How do you calculate error in refractive index (n) ?

what is not a type of model that is commonly used in science and uses familiar things to describe unfamiliar things?

Calculate the capacitance of a system that stores 7.0 x 10^-10 C of charge at 250.0 V. A. 2.8 x 10^-12 F B. 3.6 x 10^11 F C. 1.8 x 10^-7 F D. 5.7 x 10^6 F The answer is A i figured it out.

A distance of 2.00 mm separates two objects of equal mass. If it gravitational force between them is 0.0104 N, find the mass of each object

A skipper on a boat notices wave crests passing the anchor chain every 5 seconds. the skipper estimates the distance between crests is 15 m. what is the speed of the water waves?

The power of a machine measures A. its rate of doing work. B. its strength. C. the force it produces. D. the work it does.

A wave with a frequency of 30 Hz has a wavelength of 40.5 m. How fast is the wave traveling?

A soccer ball is sitting in the middle of a soccer field during a game. When the referee blows his whistle, one of the players runs toward the ball and kicks it as hard as he can.

A body with v=20m/s changes its speed to 28m/s in 2sec. its acceleration will be

Charge: A piece of plastic has a net charge of + 2.00 μC. How many more protons than electrons does this piece of plastic have? (e = 1.60 * 10-19 C)

How much heat is needed to raise the temperature of 6g of water by 18oC?