What is special about nitrogen and what is its main funtion in the atmosphere

A 8kg cat is running 4 m/s. How much kinetic energy does it have?

Is it true that most of the mass is in the shell of the atom?

The density of mercury is 13.54 g/cm^3. Suppose you need 40gm of mercury for an experiment. What volume of mercury do you need? A. 2.95 cm^3 B. 541.60 cm^3 C. 26.46 cm^3

Statics is not always a stationary? yes or no

The distance between earth and mars is 51 G meters. What is the minimum RTT for a link between Earth and Mars if speed of light is 3 * 108 meters/second.

What is the source of energy for the process of evaporation?

How could you compare the energy carried in two different longitudinal waves

The instantaneous velocity of an object is the blank of the object with a blank

Which of the following best describes the earth's average surface temperature for the past 900,000 years? A. a steady warming trend B. fairly steady temperatures until recently C. prolonged periods of cooling and warming D.

What should you always include in a great summary? (Select all that apply) A. investigation plan B. possible errors C. predictions D. new questions