If salt is compound is it pure element or compound

A small cart and one of larger mass collide and rebound off each other. The carts were initially moving with the same speed. Which one changes its velocity the most during the collision? They both have no change in velocity.

What is the momentum of a 2 kg shopping cart if it's moving at a speed of 5 m/s

A 2.5 kg cat is resting on top of a bookshelf that is 3 meters high. What is the cats gravitational potential energy relative to the floor if the acceleration due to gravity is 9.8 m/s ^2

What's the name of the non-foliated metamorphic rock that results from contact metamorphism?

A 2.00 m wave has a frequency of 686 Hz. What is the speed of the wave?

You jog at 9.50 km / h for 8.00 km; then you jump into a car and ride an additional 16.0 km. What average speed must the car have for the average speed for the entire 24.0-km trip to be 24 km/h?

A tool industry characterized by the appearance of hand axes, a bifacial type of blade.

3 rights only for U. S citizens

How many protons, neutrons, and electrons are in oxygen?

gaseous h2 and br2 are added to an evacuated 1.15L container kept at 298K. The intial partial pressurre of H2 (g) is 0.782 atm and that of Br2 (g) is 0.493 atm. Find the partial pressures of HBr when the system reaches equilibrium