Which of the following is true about a balance force? a) Results in no net movement
b) Causes an object to decelerates
c) Causes an object to speed up
d) The opposite forces acting on an object are unequal.

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.