(+) (-) Distance, r Energy The accompanying graph depicts the interaction energy between two water molecules situated so that their dipole moments are parallel and pointing in the same direction. Sketch an approximate curve for the interaction between two water molecules oriented with antiparallel dipole moments.

and b are constants. The work done in stretching this rubber band from x = 0 to x = L is: 4) When a certain rubber band is stretched a distance x, it exerts a restoring force F = ax + bx, where a 主 А) al?+ bLx В) al + 2bl? С) a + 2bL D) BL E) al?2 + bз

Solve for work  also find the angle between the distance the object is moved and the applied forces used

Indicate the one with more potential energy and explain why. A full plane or an empty plane (both are flying )?

A force acting on an object moving along the x axis is given by F (x) where x is in m. How much work is done by this force as the object moves from x = (8x + 6x2 -2 to 3 m ? O - 50 J O 26 J O 12 J O 90 J Next »

(2) The combined force of lift and thrust on a model airplane is a constant F = (4î + 3j + 6k) N. a. How much work is done by the force F if the displacement of the airplane is: A = (6î – 5j – 3k) m? %3D b. Will this force cause the airplane to speed up, slow down or maintain a constant speed?

A block slides 42 m down a ramp that makes an angle of 60° with the ground. Determine the mass of the block if 10 400 J of work was done. (Assume 1 kg exerts a force of 9.8 N.) BIU A Paragraph + v Lato (Recom. 19px lili

2) A person with a mass of 70 kg runs up some stairs that are 25 m high in 12 seconds. How much power was the person producing in this run?

he driver of a 1450 kg car, initially traveling at 11.1 m/s, applies the brakes, bringing the car to rest in a distance of 18.5 m. find the net work done by the car  find the magnitude

Describe the energy transformations when a child hopsaround on a pogo stick (there is a spring inside).