What is the largest mountain free land area in europe it stretches 2000 miles?

What is the internal energy of 4.00 mol of diatomic nitrogen gas n2 at 455k

It takes a lot of energy to get the temperature of water to increase and eventually boil because water has a high heat.

An astronaut on the moon throws a baseball upward. the astronaut is 6 ft, 6 in. tall, and the initial velocity of the ball is 3030 ft per sec. the height s of the ball in feet is given by the equation s equals negative 2.7 t squared plus 30 t plus 6.5s=−2.7t2+30t+6.5, where t is the number of seconds after the ball was thrown. complete parts a and b.