A substance that accelerates the rate of a chemical reaction is called a (an)

a. catalyst.

c. molecule.

b. lipid.

d. element.

Question 1: A man trailing a trolley bag and suddenly, the wheels of the trolley bag get locked. The man realises that he has to put extra effort to drag the bag. The man finds it difficult to drag the bag because

An airplane travels 4000m in 16 seconds on a heading of 35 whats is its velocity

A ball is thrown into the air

The mass of Saturn can be determined by applying Kepler's 3rd Law to the motion of a single ice particle in its rings. A) True B) False

Box 2 is pulled up a rough incline by box 1 in an arrangement as shown in the figure below. how many distinct forces are doing work on box 2?

How did rutherford's experiment show that thomson's plum pudding model was incorrect?

A car accelerates from 30 m/s to 50 m/s in 2 seconds. Calculate the cars acceleration

What color of light has the shortest wavelength

What was his average swimming speed during the second half of the race if he tied the record, which was at an average speed of 2.05 m/s?

Objects A and B have equal amounts volumes and are both traveling at 25 miles per hour. Object A is much denser than Object B. Which object has a greater amount of force and why