An ion of an element has 42 protons 44 neutrons and 43 electrons. What is it's charge and how did you make that determination?

Which would fall with a greater acceleration in a vacuum-a leaf or a stone?

You work in a materials testing lab and your boss tells you to increase the temperature of a sample by 34.9 âc. the only thermometer you can find at your workbench reads in degrees fahrenheit. if the initial temperature of the sample is 70.

A real spring does not oscillate forever. Instead, it eventually comes to a stop. Does this violate the law of conservation of energy? Explain why or why not.

2. Sublimation is the process of changing of liquid to solid.

Is a lack of thorns a mutation? (on a plant)

Can hand sanitizer be used as rubbing alcohol

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?