The element aluminum has an atomic number of 13. How many protons are in the nucleus of an aluminum atom? How many electrons does an aluminum atom have?

After a short time, an equilibrium is reached between the diffusion currents (also called recombination currents) and a second, opposing type of current. what causes these secondary currents?

An instrument used to detect a static electric charge is called an ammeter. a. true b. false

Which factors are involved in earthquake formation? Check all that apply. plates moving rocks breaking stress that decreases faults that remain stationary movement below the surface

A block pushed with a force of 27 N accelerates at 5 m/s2. What is the mass of the block?

Would an astronauts mass change as she traveled from planet to planet? Explain.

Briefly explain how an electric motor works.

When is a hypothesis developed in the scientific method? before there is a question after a question has been identified and observations are made after an experiment if the experiment justifies one

Interactive LearningWare 4.1 reviews the approach taken in problems such as this one. A 1800-kg car is traveling with a speed of 14.0 m/s.

Compare the Lagrangian method with the Newton-Euler method in detail.

A plane is flying east at 135 m/s. The wind accelerates it at 2.18 m/s^2 directly northeast. After 18.0s, what is the magnitude of the displacement of the plane?