A bicyclist was moving at a rate of 8 m/s, and then sped up to 10 m/s. If the cyclist has a mass of 120 kg, how much work was needed to increase his velocity? (Hint: Use the work-kinetic energy theorem.)

What is the final velocity of a hoop that rolls without slipping down a 5.00-m-high hill, starting from rest?

A rigid container holds 2.40 mol of gas at a pressure of 2.00 atm and a temperature of 40.0 ∘c. part a what is the container's volume?

A crash test dummy is inside a test car moving at 55 km/h. How fast is the dummy moving relative to the seat he is sitting in?

Which best explains why sound travels fastest through a solid?

While scuba diving with some friends, Deshawn notices that the air bubbles exhaled by his friends increase in size as they get closer to the surface of the water. Why does this occur and which gas law explains it?

Heat that is transferred by the movement of currents within a fluid is called?

5. What is the percent composition of sulfur in H2SO4? A. 32.7% B. 65.2% C. 98.1% D. 2.1%

A 0.8kg object accelerate at a rate of4 m/s2. What is the net force acting on a object

Which of the following is the best definition of an isotope? A. elements of the same kind with different numbers of neutrons B. elements of the same kind that have lost electrons C. elements of the same kind that have different electrical charges

Two cars approach each other; both cars are moving westward, one at 85 km/h, the other at 54 km/h. what is the magnitude of the velocity of the first car relative to (in the frame of reference of) the second car? answer in units of km/h.