A student touches sphere x and moves it close to, but not touching sphere y. What are the natures of the charges left on the two sphere?

Sphere X Sphere Y

A. positive positive

B. no charge no charge

C. positive negative

D. negative positive

The definition of solid

Which of the following describes what will happen if an iron core is inserted into a coil of wire? The wire will have a larger magnetic field. The iron core will become magnetized. The wire will have a smaller magnetic field.

How much does an 18 wheeler trailer weigh?

A man is standing on the shore of a beach, up to his knees in water. Every 5 seconds a wave breaks on him. What is the period of the wave? A. 12 waves per minute B. 5 hertz C. 5 seconds D. 0.2 hertz

If 500 J of energy were added to 1 kg of each of these samples, which would experience the LEAST temperature increase? aluminum, Brass, Copper, Platinum

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?

Why does a buoyant force act on every object in a fluid? Pressure pushing up on the bottom of the object is greater than the pressure pushing down on the top.

Give a sentence with the word velocity in it

Which description matches up correctly with each type of particle? Alpha - no mass and no charge; beta - mass of 4 and charge of + 2; gamma - charge of - 1 and mass of 0 Alpha - mass of 0 and charge of - 1; beta - mass of 4 and charge of + 2;

Describe the factors that form deep currents