Aheat engine does 300 j of work during one cycle. in this cycle 900 j of energy is wasted.
what is the efficiency of the engine?
a. 0.25
b. 0.33
c. 0.50
d. 0.75

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.

This is one type of line graph in which the independent variable is time plotted on the x axis and the dependent variable, also numerical, is plotted on the y axis.

Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?