Which has more momentum: a 30 kg bicycle moving at 10 m/s or a 300 kg car at rest?

A bicycle

B car

c they have the same momentum

A box is placed on a flat surface. Jane lifts one end of the surface, making an angle with the floor. As she increases the angle that the surface makes with the floor, the box eventually begins to slide down because ...

The centripetal force of an object moving in a circle varies jointly with the mass of the object and the square of its velocity and inversely as the radius of the circle.

As excess carbon dioxide is stored in the atmosphere and the atmosphere warms, this heat is also transferred to what?

Loggers cut down 2 identical trees. One tree was cut down with a hand saw and one was cut down with an electric saw. Which activity involved more work?

Determine the frequency of a sound wave if it has a speed of 350 m/s and a wavelength of 3.80 m.

Hydroelectric power uses: wind water coal the sun

Two lightweight metal spheres are suspended near each other from insulating threads. One sphere has a net charge; the other sphere has no net charge. The spheres will: A. Attract each other B. Exert no electrostatic force on each other C.

Read the given list of organisms. squirrel, zebra, tortoise, rabbit, horse What best describes the role of these five organisms in a food web?

What are the SI units for specific heat capacity

What are starburst galaxies and what do they have to do with galaxy evolution?