A wheelbarrow has a mechanical advantage of 2.2. The output distance extends from the load's center of mass to the wheel, and the input
distance is from the handles to the wheel. For an output distance of 0.45
m, what is the input distance? Based on the word problem above what
equation will you use to solve it? *
Work Equation
Efficiency Equation
Power Equation
Mechanical Advantage Equation

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

Sally and sue were investigating the topic of friction in science. they used a small car and a ramp as seen in the picture to test what they were learning. they knew that they slipped easily on waxed floors but not on carpet, so they decided to change the material on the surface of the ramp to see what happened. they planned to use glass, carpet, aluminum foil, and sandpaper and run the car down the ramp over each surface. what would be the best research question to guide the girls' experiment? a) does the amount of surface area affect the friction on the moving car? b) will the car travel fastest on the glass surface? c) how does the angle of the ramp affect the speed of the car? d)do rougher surfaces tend to create more friction than smooth surfaces?

When the solution concentration on the outside of a cell is greater than thesolution concentrate on the inside of the cell, what type of solution is the cellwithin?