Why is the work output of any real machine less than the work needed to operate it?

work is gained due to friction

work is lost due to friction

friction reduces the work input

there is a fish called an archer fish that shoots drops of water at insects resting on branches above the water. If the Archer fish is aiming at an insect with (x, y) coordinates of (0.5,0.

Consider the following possible stages in the evolution of a star like our sun: black dwarf, giant, main-sequence, planetary nebula, supernova, white dwarf. Rank the stages in the order they occur.

Work is being done in which of these situations? All motions are at a constant velocity (including velocity = zero). A. Jessica pushes a 25 kilogram cart a distance of 10 meters. B. Bane carries a 20 kilogram box a distance of 50 meters. C.

In a two-slit experiment using coherent light, the distance between the slits and the screen is 1.10 m, and the distance between the slits is 0.0400 mm. If the second order bright fringe is measured to be 4.

newton's second law states that f=m x a (force is mass times acceleration). which example would have the greatest acceleration

At distances greater than 2 femtometers, the nuclear strong force is stronger than (select all that apply): gravity electromagnetic forces nuclear weak force none of the above

Identifying the Functions of Parts of the Ear Which part of the ear changes sound to a signal that the brain can understand? Which part of the ear carries the signal to the brain?

Which tool would a scientist use to find the mass of an object?

Who are the launched dog on moon A. mark B. lyca C. mcmc D. seul

The excerpt is from an article that Roberto read for science class called "Using the Scientific Method to Study Tomatoes." The student performed an experiment to test his hypothesis about sunlight and plant height using two plants.