4. A block system is shown in figure. Frictional force on 2kg is f1 and on 3kg is f2 and T is tension in the string connecting block A and B. Which of the following statement is correct? (A) f1= 8i, f2 = -15icap, t=2n
(B)f1=-8icap, f2=-15icap, t=2n
(c)f1=5icap, f2=-15icap, t=5n
(d)f1=-5icap, f2=-15icap, t=5n

You and a friend (alex) are at a a tree-top adventure park .. . part of the course requires you to climb up a rope. you both climb the same rope in the same amount of time. however, the tension in the rope is greater when alex climbs. who did the most work? alex did - more tension means more force - more force means more work was done you did - less tension means less force - less force means more work was done to find the work done, the force exerted and distance moved are multiplied. a couch is moved twice before you are happy with its placement. the same force was used to move the couch both times. if more work is done the first time it is moved, what do you know about the distance it was moved? when more work was done, the couch was moved less. when more work was done, the couch was moved further. when more work was done, the couch wasn't moved at all. when more work was done, the couch was moved the same distance.

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

What is the relationship between the direction of motion of the balloon and the wind currents