Wisconsin. When on her skates, she has a mass of 65 kg. Stopping quickly is very important in roller derby. It’s necessary to avoid going out of bounds, to quickly turn and pursue members of the opposing team, and many other situations. Nova, who studies physics, knows that the coefficient of friction of her toe stops will have an important effect on how quickly she can stop. During a practice, she finds that, if she is skating forward at a speed of 7 m/s, she can turn around and use her skates’ toe stops to come to a complete stop in a distance of 2.5 m.

What is the conversion factor between kg/m^3 and g/m^3. express your experimental values for the densities in kg/m^3.

An object is located 30.0 cm from a concave mirror. the focal length is 15.0 c,. what is the image distance? a. 30.0 cm b. -10 cm c. 10.0 cm d. -30.0 cm

Did the proton move into a region of higher potential or lower potential? did the proton move into a region of higher potential or lower potential? because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of higher potential to a region of lower potential. because the proton is a negative charge and it accelerates as it travels, it must be moving from a region of lower potential to a region of higher potential. because the proton is a positive charge and it slows down as it travels, it must be moving from a region of higher potential to a region of lower potential. because the proton is a positive charge and it slows down as it travels, it must be moving from a region of lower potential to a region of higher potential. request answerpart bwhat was the potential difference that stopped the proton? express your answer with the appropriate units.î”v î” v = nothingnothingrequest answerpart cwhat was the initial kinetic energy of the proton, in electron volts? express your answer in electron volts. ki k i = nothing ev request answerprovide feedback