A person tries to lift each object with a force of 18 N, upward. Which statement is supported by the data in the table?
O A. All of the objects will move, and object 2 will accelerate upward
the fastest
B. None of the objects will move, but the normal force on all of the
objects will increase.
c. Objects 1 and 2 will not move, and objects 3 and 4 will accelerate
upward.
D. Objects 1 and 2 will move downward, and objects 3 and 4 will
move upward.

Which statement best describes copper? a. it has a low resistance and prevents charges from moving freely. b it has a high resistance and allows charges to move freely. c. it has a high resistance and prevents charges from moving freely. d. it has a low resistance and allows charges to move freely

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?

Marvin records scientific data about lake superior. for which property has marvin forgotten to use an si unit of measurement? shore length high temperature low temperature annual precipitation