Dalton was one of the first scientists to experimentally prove that
a. the nucleus and the electron have different electrical charges.
b. most of the atom is made of "empty space".
c. the chemical and physical properties of an element correlate with its mass and size.
d. the atom is composed of smaller pieces.

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

Aperson standing in a canoe exerts a force of 700 n to throw an anchor over the side. find the acceleration of the canoe if the total mass of the canoe and the person is 100 kg?

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next