Marcia is given an incomplete chemical equation that includes the number of nitrogen atoms present in the products of the reaction. How can she conclude that the reaction started with three nitrogen atoms?

Technician A says that silent chains are quieter than roller chains and do not stretch with use. Technician B says that on overhead valve engines, the camshaft is usually placed in the block above the crankshaft. Which technician is correct A.

If a balloon is taken outside on a very cold day, what will occur?

Calculate the volume of the part of the sphere that will be immersed in the mercury when the density of the sphere is 7800kg/metre cubic and volume of 136centrimetre cubic and the density of the mercury is 13600kg/metre cubic

A cheetah runs with a positive acceleration. What does this tell you about the velocity time graph for the cheetah? A. Graph negative slope B. graph positive slope C. Graph positive area D. Graph negative area

What are the four (4) major types of medical wasted?

What is energy? it's from my physics book

An object is thrown upward with a speed of 12 m/s on the surface of planet x where the acceleration due to gravity is 1.5 m/s2. how long does it take for the object to reach the maximum height?

How fast must a 0.142-kg baseball move in order to have the same momentum as the bus?

What is resistance? Difference between resistance and resistivity.

What is meant by the statement, "a thermometer measures its own temperature"?