In surfing, why does crouching down you remain stable?
a) it lowers your center of gravity
b)it raises your center of gravity
c) it doesn't really, it just seems that way psychologically
d) your average mass decreases

Flourine is found to undergo 10% radioactivity decay in 366 minutes determine its halflife

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

What is the temperature in kelvin of a gas if it is allowed to expand from 1.50 l to 4.50 l? the initial temperature is 10.0°c and pressure is constant throughout the change. which equation should you use? t2= v2/v1 t1 what is the final temperature? ⇒ 849 k these are the answers.