Identify the materials necessary to create an electromagnet.

A. power source, metallic core, and electrical conductor

B. metallic core, magnet, and power source

C. metallic core and power source

D. electrical conductor and power source only

A small puck with a mass of 0.10 kilograms is sliding in the + x-direction on an air table with an initial speed of 8.0 meters/second. The puck collides with a larger puck that is initially at rest. The larger puck has a mass of 0.40 kilograms.

A small refracting telescope designed for individual use has an objective lens with a diameter of 6.00 cm and a focal length of 1.325 m. what is the f-number of this instrument?

Two water balloons of mass 0.65 kg collide and bounce off of each other without breaking. Before the collision, one water balloon moved at a velocity of 3 m/s east, while the other moved at a velocity of 2 m/s west.

What evidence suggests that the ""hole"" in the ozone layer is getting smaller?

States of matter depend in part on the___ of an item.

There are 1000 g in every kilogram of a box has a mass of 483 g what is the mass of the box in kilogram

According to the map, which of the following cities had both a military and a POW camp nearby?

What does uniformitarianism tell us about processes at work on Earth's surface today?

A bad case of the tonsillitis can sometimes affect a persons breathing how possible

How gravity affect time? With reference to einstein special theory of relativity