Is a compound a pure substance? Why or why not

When making a guess and retesting this information a theory or

What is the ph of ammonia

Which change increases the electric force between objects? A) Two neutral objects are moved closer together. B) Electrons are added to two negatively charged objects. C) Two oppositely charged objects are moved farther apart.

Describe at least 1 advantage and 1 disadvantaged to learning about a scientific discovery from A) a scientific journal B) the internet C) a daily newspaper

In the high jump, the kinetic energy of an athlete is transformed into gravitational potential energy without the aid of a pole. Find the minimum speed must the athlete leave the ground in order to lift his center of mass 1.

How much work does a supermarket checkout attendant do on a can of soup he pushes 0.600 m horizontally with a force of 5.00 N? Express your answer in joules and kilocalories.

Arrange the objects in order from least to greatest potential energy. Assume that gravity is constant. (Use PE = m * g * h.

No physical processes have ever been demonstrated which provide a mechanism for the universe to assemble itself. True False

A very famous motorcyclist plans to jump across a canyon 3.5 kilometers wide. he plans to use a 30 degree ramp and leaves it at 196 m/s. Will he make it? show all calculations to prove your answer

Which composition of water moves within a deep-water current?