Rounded to the nearest whole number, how many protons are in an atom of krypton?

A 36

B 48

C 84

D 120

Define: exitstentialism

Gerald works on a futuristic space station servicing interstellar space ships. He observes a ship traveling directly away from the space station at a speed of 0.6c. The ship launches a shuttle towards the space station with a speed of 0.

A balloon used in surgical procedures is cylindrical in shape. as it expands outward, assume that the length remains a constant. find the rate of change of surface area with respect to radius when the radius is (answer can be left in terms of π).

Increase or decrease in temperature? A gas is expanded

Where do you weigh more: at the bottom of death valley or atop one of the peaks of the sierra nevada? why?

What is the length of a box in which the minimum energy of an electron is 1.5*10^-18 J?

Describe how to calibrate a candy thermometer

A water drops falls from the roof of a house during 3s, how high is the house?

A cannon fired horizontally at 20 m/s from the top of a cliff lands 80m away. how tall is the cliff

Who is galileo galilei