The density for potassium is 0.856 g/cm3. What would be the mass of a 40 cm3 piece of potassium?

A. 68.48g

B. 46.73g

C. 34.24g

D. 34g

Landslides and mudslides can result from both volcanoes and earthquakes. true false

A 75.0-kg firefighter climbs a flight of stairs 28.0 m high. How much work does he do?

What is a factor in determining the average atomic mass of an element

Planet z-34 has a mass equal to one-third that of earth and a radius equal to one-third that of earth. with g representing, as usual, the acceleration due to gravity on the surface of earth, the acceleration due to gravity on the surface of z-34 is

Raindrops hitting the side windows of a car in motion often leave diagonal streaks even if there is no wind. Why? Is the explanation the same or different for diagonal streaks on the windshield?

The amount of force needed to keep a 0.1kg basketball moving at a constant speed of 6 m/s on frictionless ice is ___ N

What three forms of kinetic energy can a polyatomic molecule have?

A parachutist bails out and freely falls 50 m. Then the parachute opens, and thereafter she deceler - ates at 2.0 m/s2. She reaches the ground with a speed of 3.0 m/s.

Why the weight of a body decreases with increases in distance from the earth's surface

On a fishing trip Justin rides in a book 12 km south. The fish aren't biting so they go for kilometers west. They then follow a school of fish 1 km north. What distance did they cover? What was their displacement?