Which of the following represents a system that is completely open?

A. a capped soda bottle

B. a pot of boiling water

C. a presser cooker

D. a pressurized canister of helium gas

The collodion process used wet plates, which were glass plates that had been covered with a mixture of chemicals before being placed in the camera for the exposure.

Is fire actually hot and why do we call it hot; is it a classification for when something burns you.

Why does a smaller car get better gas mileage than a bigger one?

What would happen to an object in orbit without gravity pulling down?

The forces acting on a child in a seat are described by a free body diagram what is the net force

In the game of volleyball, what skill relates to Newton's second law

The minimum breaking distance d in feet for a typical vehicle can be modeled with the equation d (v) = 0.045v2, where v is the vehicle's speed in miles per hour.

A 2kg blob of putty moving at 4 m/s slams into a 6kg blob of putty at rest what is the speed of the to stick together blobs immediately after colliding

A stone is thrown vertically upward with a speed of 12m/s from the edge of a cliff 70 m high (a) How much later it reaches the bottom of the cliff? (b) What is its speed just before hitting? And (c) what total distance did it travel? (Ans: 5.

After completing a career search, Patrick has decided that he wants to be a paralegal. Which two skills or abilities are important for him to have in order to excel in this career?