A neophyte magnet designer tells you that he can produce a magnetic field B in vacuum that points everywhere in the x-direction and that increases in magnitude with increasing x. That is, B = B0(x/a)i, where B 0 and a are constants with units of teslas and meters, respectively. Use Gauss’s law for magnetic fields to show that this claim is impossible. (Hint: Use a Gaussian surface in the shape of a rectangular box, with edges parallel to the x-, y-, and z-axes.)

Would corn syrup, molasses, or pancake syrup make a good lubricant in a car engine? explain your answer.

Apositive rod is placed to the left of sphere a, and the spheres are separated. which best describes the spheres? sphere a is negative and sphere b is positive because protons from sphere a are attracted to the rod and move to sphere b. sphere a is negative and sphere b is positive because electrons from sphere b are attracted to the rod and move to sphere a. sphere a is positive and sphere b is negative because electrons from the rod move to sphere b and protons then move to sphere a. sphere a is positive and sphere b is negative because protons move from sphere b to the rod and also to sphere a.

Groups of organs that work together to complete a process in the body are called: a. cells b. tissues c. nerves d. systems