Driver a is cruising along enjoying the fall colors. driver b starts her car at the instant he passes her. their velocities are shown as functions of time in the graph below. at what instants in time on the graph are drivers a and b side by side?

Astronomers discover an exoplanet (a planet of a star other than the sun) that has an orbital period of 3.87 earth years in its circular orbit around its sun, which is a star with a measured mass of 3.59 x 1030 kg. find the radius of the exoplanet's orbit.

Which feature of a heating curve indicates a change ofn state

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law