A car travelled the first third of a distance d at a speed of 1 m/s, the second third at a speed of 2 m/s and the last third at a speed of 6 m/s. Determine the average speed of
the car.

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

Which atomic model was proposed as a result of j. j. thomson’s work?

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?