Technician A says electronic shift controls complicate valve body design by adding extra solenoid ball valves. Technician B says electronic transmission use a throttle position sensor signal as the electronic equivalent of a hydraulic throttle pressure signal. Which technician is correct? A. Technician A. B. Technician B. C. Both Technician A and B. D. Neither Technician A and B.

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

Contains chemical energy. a. heat b. light c. natural gas