How some bodies emit light

8. A person with a mass of 15 kg is walking on a flat surface at a velocity of 5 m/s. What is the walker's momentum?

A person in a boat sees a fish in the water (n = 1.33, the light rays making an angle of 40? relative to the water's surface. what is the true angle (in degrees relative to the water's surface of the same rays when beneath the surface?

How did Ernest Rutherford change the atomic model based on his experimental results? A. He placed electrons in orbits around the nucleus. B. He described the atom as a sea of positive charge sprinkled with electrons. C.

How are visible light and microwaves the same?

What are close-toed shoes least likely to provide protection against? A. hydrogen gas produced during a reaction B. spilled water from a hot-water bath C. broken glass from a dropped test tube D. acid leaking from a cracked beaker

Which type of agent will enhance the properties of a neurotransmitter a) agonist b) antagonist c) catcher d) pitcher

Which of the following is an appropriate unit for speed? * note: you can choose more than one. A. miles/hour B. meters/second C. blocks/min D. newtons/sec

According to Newton's second law of motion, force is equal to mass times acceleration

A camera of weight 8.9 newtons is dropped from a drone at a height of 18.6 meters and enters free fall. Assuming no air resistance, what is the final velocity of the camera a moment before it shatters on the ground?

Which scientist first proposed physical laws to mathematically describe the effect of forces on the motions of bodies?