(please choose the correct answer.) which of the following is false about forces?
A. Forces can cause change.
B. Forces act in pairs.
C. forces cannot be qualified.

Part of a control linkage for an airplane consists of a rigid member cb and a flexible cable ab. if a force is applied to the end b of the member and causes it to rotate by θ = 0.5°, determine the normal strain in the cable. originally the cable is unstretched.

Aprotein molecule in an electrophoresis gel has a negative charge.the exact charge depends on the ph of the solution, but 30 excesselectrons is typical. what is the magnitude of the electric forceon a protein with this charge in a 1500 n/c electric field?

What does the atomic mass of an atom tell us? how much the atom weighs the number of electrons in the atom which row the element is in on the periodic table the number of energy levels in the atom