Explain how (and why) your barometer is going to work. ( not how it is made ) someone ! ill give u brainliest

Which of these metals are magnetic?

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?

Six pendulums of mass mand length las shown are released from rest at the same angle theta from vertical. rank the pendulums according to the numberof complete cycles of motion each pendulum goes through perminute. a. l= 1m m=2kg b. l= 4m m=1 kg c. l= 2 m m= 2 kg d. l= 1 m m= 4 kg e. l= 2 m m = 4 kg f. l= 4m m = 4kg