Which of the following is the best example of potential energy? a ball sitting at the top of a hill a ball sitting at the bottom of a hill a ball rolling down a hill

What property of a wave remains unchanged when a wave enters a different medium?

According to the Standard Model of Particle Physics, a neutrino is a type of

What is the streak of a mineral used for? A. weighing the mineral B. measuring the hardness of the mineral C. identifying the mineral D. finding the volume of the mineral

At a cruise ship terminal, each day on average 1000 passengers embark on ships. On average, passengers spend 5 days on their cruise before returning to this terminal.

Is a compound a pure substance? Why or why not

Suppose an electron is moving with a constant velocity until it encounters a positively charged sphere on its right. How does the sphere alter the trajectory of the electron? a. It has no effect on the trajectory of the electron b.

Most of the mass of the Milky Way exists in the form of: a.) starsb.) gasc.) dustd.) dark matter

A 55kg cart is pushed by a force of 225 n. what is the carts acceleration?

F we wanted to compare muscular endurance between a very large person and a very small person, what method would be the best method to use? a. absolute method b. maxing out c. callisthenic method d. fixed percentage of rm method

After creating a question and forming a hypothesis, what is the next step in the scientific method