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

A 10kg object is near a planet's surface such that the gravitational field strength is 4Nkg. With what force is the planet attracted to the 10kg object? A-4 Nkg b-10N c - 40N d-100N

How much force does an 88kg astronaut exert on his chair while accelerating straight up at 10 m/s^2

Mr. Llama walked from his house to the stop sign down the street. He walked two miles to the stop sign and then returned back to his house. What is the distance that he walked? Question 2 options: A. 3 feet B. 2 miles C. 4miles D.

Are fossil fuels used to produce plastics?

Will graphite display clevage or fracture

Are microwaves and radio waves faster or slower than other types of electromagnetic energy?

If you dive under-water, you notice an uncomfortable pressure on your eardrums due to the increased pressure. The human eardrum has an area of about 70 mm2 (7*10-5m2), and it can sustain a force of about 7 N without rupturing.

Why cant kinetic energy ever be greater than potential energy

For a stationary observer, when the source of a sound is moving, its pitch appears to change.

Give an example of each simple machine