A cop is traveling at a velocity of 24.17 m/s when he is passed by a speeding car traveling at a velocity of 40.29 m/s and accelerating uniformly at 1.77 m/s^2 At the moment the speeding car passes him, the cop accelerates uniformly at 3.31 m/s^2. How long does the cop take to catch up to the speeding car?
1. 11.368 s
2. 23.761 s
3. 20.935 s
4. 26.127

In 1995 a research group led by eric cornell and carl wiemann at the university of colorado successfully cooled rubidium atoms to the 20-200 nk temperature range. assuming (incorrectly) that the rubidium atoms behave liké particles of a classical ideal gas, calculate the rms speed of a rubidium atom at a temperature of 112.0 nk. in the experiments one particular isotope of rubidium was used, rubidium-87. the molar mass of this isotope is 86.91 q/mol. tries 0/20 submit answer

Two objects of different mass start from rest, are pulled by the same magnitude net force, and are moved through the same distance. the work done on object 1 is 900 j. after the force has pulled each object, object 1 moves twice as fast as object 2. how much work is done on object 2?

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?