Post-Lab Questions 1. Review your data. Did your experiment support your hypothesis? Explain your answer.
2. What role does voltage play in the formation or use of an electromagnet?
3. If you were able to keep the electromagnet that you created in your laboratory activity, what would be two possible uses for the electromagnet? 4. What is an advantage of using an electromagnet rather than a regular magnet?
would be two possible uses for the electromagnet?
4.
What is an advantage of using an electromagnet rather than a regular magnet?

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.