A flat racetrack viewed from above has curves with radii of 50.0 meters and 100. meters. A car having a
mass of 1.00 x 10° kilograms moves counterclockwise
around the track at a constant speed of 20.0 meters
per second. It takes the car 20.0 seconds to travel
from C to D.

Which of the following represents an upright image? a. -do b. +m c. -m d. +do

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above

Explain what will happen if decomposers were apsent from a forest ecoysystem.