What causes materials to have magnetic fields?

a motor boat heads east at 16 m/s across a river that flows north at 9 m/s. what is the resultant velocity speed and directions of the boat?

What is resistivity

Has scientific knowledge changed over time?

A compound differs from a mixture because it

Which of the following is a biotic limiting factor for a plant population in an ecosystem? Access to sunlight Birds that disperse seeds Availability of soil minerals Disease-causing bacteria

Would iron and carbon from metallic bonds

How many joules does a shortbread cookie have

What happens to frequency when an object is moving towards you?

What is the mid-atlantic ridge? how many miles does it stretch?

A basketball player jumps straight up for a ball. To do this, he lowers his body 0.260 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.