A runner runs 300 m at an average speed of 3.0 m/s. She then runs another 300m at an average

speed of 6.0 m/s.

What is her average speed for the total distance of 600m?

A 2.0 m/s

B 4.0 m/s

C 4.5 m/s

D 8.0 m/s

Gizmo answer sled wars

What is happening in the brain, because people are so rude?

Consider the work of Thomson, Rutherford, and Bohr. In your opinion, which was the most important and why? Be sure to state what your selected person discovered and how it contributed to the model of the atom.

What happens to a higher concentration of dissolved molecules on one side of a cell membrane during the process of diffusion?

Caused by the tilting of the Earth s axis

Imagine riding On a merry-go-round at the center. As you walk to the outer edge, the merry-go-round slows in order to conserve angular momentum. True or false?

17. (a) Will the electric field strength between two parallel conducting plates exceed the breakdown strength for air (3.0*106 V/m) if the plates are separated by 2.00 mm and 5.

What property of sound enables us to distinguish one sound source from another?

The table below shows the right ascensions of two stars at a location. Star 1 - 4 right ascension (in Hour) Star 2 - 3 right ascension (in Hour) Which of these statements is correct about the stars?

H-2 + H-3 → He-4 + Consider the nuclear reaction that takes place in the sun. Two nuclides of hydrogen fuse to form helium. Is helium the only product of this reaction? If no, identify any additional products. A) Yes, He-4 is the only product. B) No.