The efficency of a practical machine is less than 100% why?

A uniform meter scale is balanced where masses of 100 and 50 g are suspended from 20 and 30cm mark respectively. Find mass of metre scale.

wich of the folling is best definition of vectors (quantities described by both force and gravity) (quantities described by bothspeed amnd movement) (quantities described by both velocity and acceleration) (quantities described by both magnitud)

What type of energy slows down

What best describes the goals of scientific investigation and technological development?

Citizens in the United States elect other citizens to make decisions about laws. What kind of government does this represent? A. Republic B. Theocracy C. Oligarchy D. Tyranny

Roger runs a marathon. His friend Jeff rides behind him on a bicycle and clocks his speed every 15 minutes. Roger starts out strong, but after an hour and a half he is so exhausted that he has to stop. Jeff's data follows.

Calculate the Force of Friction (Ff) for a 5 kg aluminum block being pulled with constant velocity (uniform motion), up a steel plank that is at a 30 degree angle to the horizontal.

10^-7 goats to nanogoats

0 cm3 of gasoline are mixed with 66 cm3 of water. what is the average density of the mixture

If the mass of an object is 6 kg and its momentum is 72 kgm/s, what is its velocity? A. 18 m/s B. 12 m/s C. 9 m/s D. 72 m/s