Your family is moving to a new home. While lifting a box 1.5 m straight up to put it on a truck, you exert an upward force of 200 N. Calculate the amount of work you did.

a) 300 J

b) 201.5 J

c) 198,5 J

d) 133 J

Which of the following statements is (are) true? (A) The total mechanical energy of a system, at any one instant, is either all kinetic or all potential energy.

When do your muscles use respiration

Give 5 examples of matter

How is momentum conserved in a Newton's cradle when one steel ball hits the other? 1. Both balls have momentum to start, and they share it after the collision. 2. All the momentum starts in one ball, and after the collision, they share it. 3.

What measures air pressure.?

Chlorine is the atomic number 17 in the periodic table of elements. What information does the atomic number give you about the element chlorine? A) An atom of chlorine has 17 protons+. B) An atom if chlorine has 17 protons + and electrons-.

Which type of orbital will be occupied by the electrons of highest energy for the In + ground-state ion?

Consider a "crystal" consisting of two nuclei and two electrons. (a) Taking into account all the pairs of interactions, find the potential energy 1 of the system as a function of d.

jason hits a baseball off a tee toward right field. the ball has a horizontal velocity of 10 m/s and lands 5 meters from the tee. what is the height of the tee? show your work, including formula (s) and units.

What is the average amount of energy of motion in the particles of a substance