Lisa made the electromagnet shown. (Image above) What can Lisa do to increase the strength of the electromagnet? O She can use a nail with weaker magnetic properties.

O She can change the direction of the nail.
O She can increase the number of wire loops.
O She can reduce the current in the wire.

If correct first gets Brainliest Please hurry this is a timed test( this is second time just in case I didn't go through)

Explain vector addition, triangle method and parallelogram method

Any color picture tube and electric field exerts a net force of magnitude 1.68x 10^-13 n on an electron the rest mass of an electron is 9.11 x 10^-13 what is the electron acceleration?

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !