A bicyclist increases her speed from 4.0 m/s to 6.0 m/s. The combined mass of the bicyclist and the bicycle is 55 kg. How much work did the bicyclist do in increasing her speed?

A. 11 J

B. 28 J

C. 55 J

D. 550 J

Which of the following is an inference? A) the flower is pink. B) vinegar has a pungent aroma. C) a dog barks. D) a cup with steam coming out of it will be hot to the touch.

What does it mean to say that a quantity is conserved

Estimate the enthalpy change (J/g) for air being heated from 250 C to 350 C. At 300 K the specific heat at constant pressure, cp, is 1.005 J/g/K and this value does not change much for temperatures surrounding 300K. Give 1 decimal in your answer.

I want to improve my target shooting accuracy by 20 percent what change would make this statement a more powerful goal? A. Make it dead-line driven by providing a time period for meeting the goal B.

When compared to others, how is a greater velocity represented on a motion map? with shorter vectors with longer vectors with larger dots with smaller dots

When is a body said to be at rest

27. Calculate the impulse when an average force of 10 N acts on a cart for 5.0 s.

A boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him

What is the displacement and distance if I walk 8 blocks north, 9 blocks west and 10 blocks south

What investigations provide large amounts of information about a wide range of variables.