Pure substances are made up of a single elements or compounds

Which of the following is a reason a theory cannot become a law

Suppose you are planning a trip in which a spacecraft is totravel at a constant velocity for exactly six months, as measuredby a clock on board the spacecraft, and then return home at thesame speed.

Calculate the kinetic energy of a motorcycle of mass 60kg travelling at a velocity of 40km/h

What term describes an atom's tendency to hold onto electrons?

What are the factors that affect the strength of a frictional force? the acceleration of the object the color and density of an object the bouyant forces acting on an object the mass of an object and how rough the surface is

What causes ice to melt and water to boil

A block of mass 3.5 kg slides down a frictionless inclined plane of length 6.4 m that makes an angle of 30 degrees with the horizontal. if the block is released from rest at the top of the incline, what is its speed at the bottom

What is the wavelength of an earthquake wave if it has a speed of 5 km/s and a frequency of 10 Hz?

The gamma ray released by each decay carries 140kev of energy. find the total energy e released by decays in the 2 hours.

Think of the last five things you read. Now think of a type of reading you havent done recenty have never read. What kind of pattern do you see in your reading? What is your favorite type of reading and your least favorite type of reading?