Which of the following changes can happen when the forces on an object are unbalanced?
a. the object speeds up
b. the object slows down
c. the object changes direction
d. all of the above

The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.

Which of the following is not a part of the respiratory system? a. pharynx b. trachea c. pancreas d. larynx

Abeam of light shining from water to air strikes the surface at an angle greater than 48 degrees and produces total internal reflection. if the incident beam is at a 50 degree angle what angle is the reflected beam 13 25 50 100