The mass of the products (solid and gaseous) of a fire is the same as the mass of the fuel and oxygen consumed in the fire.

true or false

A truck covers 40.0 m in 7.10 s while smoothly slowing down to a final velocity of 2.75 m/s ... (a) Find the truck's original speed.

The atmosphere is made up of several layers of air. The bottom two layers are the troposphere and the stratosphere. How does the troposphere differ from the stratosphere? A. The troposphere is much warmer than the stratosphere. B.

A 400 kg object is sitting at rest at the top of a hill that is 30.0m high and 80.0m long measured along the hill. If there is no friction, how fast will the object be going at the bottom of the hill?

A rectangular barge 7 m long and 2 m wide floats in fresh water. How much will the barge sink when loaded with 600 kg of sand? Show all calculations leading to an answer.

The Kinect energy of a book on a shelf is equal to the work done to lift the book to the shelf True or False

Which nitrogen base sequence is the partner of C-A-T-C-G-A? O C-A-T-C-G-A O G-T-A-G-C-T OT-G-C-T-A-G O G-C-A-T-G-T TI

What is the kind of energy that comes from movement?

The average kinetic energy of 1 mole of a gas at 273 degrees Celsius is: 6.81 x 103 J 3.40 x 103 J 1.51 x 103 J 6.72 x 101 J

Which one of the following crystal structures has the fewest slip directions and therefore the metals with this structure are generally more difficult to deform at room temperature? a. BCC b. FCC c. HCP d. BCT

To rid the body of wastes, including excess water and salts" is the purpose of what human body system? A) Digestive B) Excretory C) Skeletal D) Nervous