Iwill five 46 points. which statement below is true based on the graph? a) line segment ab is showing the cart traveling at 10 m/s. b) line segment cd is showing acceleration as the line has a straight increasing slope. c) line segment de is showing the cart is traveling at a constant rate. d) line segment bc is showing acceleration as the cart is increasing its speed.

Atrain is traveling at 30.0 m/s relative to the ground in still air. the frequency of the note emitted by the train whistle is 262 hz. the speed of sound in air should be taken as 344 m/s. what frequency (f approach) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and approaching it? what frequency (f recede) is heard by a passenger on a train moving at a speed of 18.0 m/s relative to the ground in a direction opposite to the first train and receding from it?

Robin is swinging back and forth from a trapeze. in which of the following situations is his kinetic energy being transformed into potential energy

Estimates show that the total energy output of the sun is 5 × 1026 j/s. what is the corresponding loss in kg/s of the sun?