If a radioactive material has 1 hour half life, how much of a 1000 g sample will be left after 6 hours

Hat is a scientific theory? Make up your own scientific theory.

And what type of heat transfer does wind play a role in earths atmosphere

If you observe people moving by you at very high speed, you will say that their time runs slowly, their lengths are contracted in the direction of motion, and their masses are increased from their rest masses. What will they say about you?

Suppose you have a hypothesis you believe to be correct what should you do to make you become a theory A. Write a letter to the noble prize committee B. Do the same experiment over and over again C.

Which choice correctly lists the attributes a celestial body must posses in order to be labeled a planet? Question 4 options: 1. Must have a moon 2. Must be large enough that its gravity forced it into a spherical shape, 3.

Two objects experience a 12 N electrical force between them. What force will the objects experience if the distance between them is doubled?

a submarine moving directly upward in the water at constant speed. The weight of the summer and it is 500,000 N. The submarines motors are off. The magnitude of the buoyant force acting on the submarine is

If the car went 30 km west in 25 min. and then 40 km east in 35 min., what would be its total displacement?

Which of the following is not the name of a space station that was in orbit around Earth?

Relationship between acceleration and free fall