Take the distance between the earth and the sun to be 149,500,000,000 m. calculate the velocity of the earth in its
orbit around the sun in m/s. take the year to be 365 days long.

Trumpeter a holds a b-flat note on the trumpet for a long time. person c is running towards the trumpeter at a constant velocity. person b is running away from the trumpeter at the same rate. person d is standing still the whole time. which person hears a frequency that is lower than the b-flat?

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

Which of the following is an example of motion in two dimensions?