How many electrons does nitrogen (N) need to gain to have a stable outer electron shell?

Does cobalt gains or loses electrons in bonding

Two magnetic poles that repel one another are held three inches apart. What happens when the poles are moved closer together, to a distance of one inch apart?

How much heat in joules is required to melt an ice cube with a mass of 18.6 g at 0 °C? The Lf for water is 333 J/g.

An event, a person, a deed, or an object can have a long-lasting or momentary effect. How might you determine if the effect has the potential to be long-lasting?

If an objects velocity doesn't tell us about the net force on an object, what characteristic of its motion does?

The outer planets are small, rocky planets with iron cores. True or False

A car is traveling 15m/s starts to decelerate steadily. It comes to a complete stop in 10 seconds. what is it's acceleration?

Una pelota de béisbol es arrojada verticalmente hacia arriba desde la azotea de un edificio con una velocidad de 20m/s.

Suppose you had one circuit with a 9V battery connected to two 100 ohm light bulbs in series. and a second circuit with a 9V battery connected to two 100 ohm light bulbs in parallel.

Which mechanical waves needs a medium to travel through?