HELP ASAP PLSSS Your class is designing electromagnets. Available materials include: various batteries, different sizes of iron nails, and a farge roll
of copper wire. Your group built an electromagnet and collected the following results. What can you infer from their resties?
A) 20 coils is 4 times stronger than 5 coils.

B) Increasing the coils of wire increased the strength of the magnet.
Increasing the coils of wire decreased the strength of the magnet.

C) increasing the coils of wire decreased the strength of the magnet.

D)For every 5 coils of wire added to the electromagnet, the strength of the
magnet doubled

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

Suppose water is leaking from a tank through a circular hole of area ah at its bottom. when water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of water leaving the tank per second to cah 2gh , where c (0 < c < 1) is an empirical constant. a tank in the form of a right-circular cone standing on end, vertex down, is leaking water through a circular hole in its bottom. (assume the removed apex of the cone is of negligible height and volume.) (a) suppose the tank is 20 feet high and has radius 8 feet and the circular hole has radius 2 inches. the differential equation governing the height h in feet of water leaking from a tank after t seconds is dh dt = − 5 6h3/2 . if the height of the water is initially 8 feet, how long will it take the tank to empty? (round your answer to two decimal places.)

An ionic compound can conduct electricity when a it is dissolved in water b its crystals are ground into powder c it is in solid form d it is heated to just below its melting point