Ms. smith challenged his students to create an electromagnet that will pick up more paper clips than anyone else in the class. Timmy is very excited and beginning to collect all of the necessary materials. He finds a D cell battery, and iron nail, and a large role of cooper wire. what could timmy do, using just these materials, to increase the strength of his electromagnet to pick up the maximum amount of paperclips?

Atwo-stage air compressor operates at steady state, compression 10m^3/min of air from 100 kpa and 300k to 1200 kpa. an intercooler between the two stages cools the air to 300k at a constant pressure of 350 kpa. the compression processes are isentropic. a) calculate the power required to run the compressor, in kw b) compare the result to the power required for isentropic compression from the same inlet state to the same final pressure.

70 give a real life example showing how sensory neurons work with the motor neurons

Positive ions differ from neutral atoms in that