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?

Do changes in speed and mass have the same effect on the kinetic energy of an object? Explain.

If all atoms have electrons that are in motion about an atom, why aren't all materials magnetic? 1. the net magnetic field created by ordinary materials is zero. 2. ordinary materials do not create magnetic fields. 3.

The volume of a block of iron is 9 cc and its mass is 70.83 g. what would be the volume of a block of aluminum that has the same mass as the block of iron? (the density of aluminum is 2.70 g/cc)

During a partial solar eclipse, where is the moon located? a. between the sun and venus b. in the penumbra d. between the umbra and penumbra

A force is always required to move an object from rest

Despite the existence of research data that might inform policy about development, political rarely discuss such data in thier speeches why do you think

Zero gauge wire has a diameter of 0.32in and can carry a sustained current of 150A safely. What is the magnetic field a distance 5cm from the center of a long straight segment of zero gauge wire carrying a current of 150A?

How to get to the daley center from pink line?

nitially, scientists described atoms as the smallest particles of matter. However, smaller particles within atoms were discovered. How did the scientific world respond to this new information?

The kinetic energy of a moving object is equal to the work required to bring it to its speed from rest, or the work the object can do while being brought to rest.