A bar magnet and a second object are hung from metal rods. The diagram below shows what happens when both objects are released.

Which best describes the object on the right?
an iron bar
a steel bar
a bar magnet with its north pole on the left
a bar magnet with its south pole on the left

Which are causes of mechanical weathering? (check all that apply) a. acid rain b. plant growth c. animal actions d. carbon dioxide e. pressure release i chose b & e and got the question wrong.

Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?

What is the percent yield of titanium (iv0 oxide, if 10.2 are formed when 25.7g of titanium (iv0 chloride react?