Describe how does the temperature relate to density and the movement of atmospheric gases? a) as the air warms expanding its volume, decreasing its density, and the air molecules rise. b) uv light causes air to warm its volume declines, density increases, and the air molecules sink. c) the volume of air distends as it cools, while its density increases and the air molecules descend. d) radiation cools the air and its volume extends, density diminishes, and the air molecules accelerate.

If an astronaut takes an object to the moon the following is true (choose only one). a the mass will change but the weight will be the same. b both the mass and the weight of the object will be the same. c the weight will change but the mass will be the same. d both the mass and the weight of the object will change.

A100 kg running back runs at 5m/s into a stationary linebacker. it takes 0.5 for the running back to be completely stopped

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative