Shown below is a 30.0-kg block resting on a frictionless ramp inclined at 60° to the horizontal. The 88.
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Ch.5 Problem 88
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- A 2.2 kg object is initially moving at 5.78 m/s. After a time of 4.9 s, the object is moving at a rate of 8.72 m/s. What net work was done on the object during that time?An object is moved on a horizontal surface by a force of 15 N up to a distance of 10 m. The force of kinetic friction is 7.5 N. What is the work done by the resultant force?Question 7.8
- The two insulated wires in (Figure 1) cross at a 30° angle but do not make electrical contact. Each wire carries a 5.0 A current. Points 1 and 2 are each 4.4 cm from the intersection and equally distant from both wires. Figure yct/itemView?assignment ProblemID=195605758&offset=next * سوگو 3 E D C 80 F3 $ 4 R F a V % 5 1 of 1 > T G F5 6 B Part A What is the magnetic field at point 1? Express your answer in microteslas. Enter your answer as positive if the magnetic field is directed into the page and as negative if the magnetic field is directed out of the page. ▸ View Available Hint(s) Y Submit Part B. Fo H B₂= G| ΑΣΦ Submit & 7 What is the magnetic field at point 2? Express your answer in microteslas. Enter your answer as positive if the magnetic field is directed into the page and as negative if the magnetic field is directed out of the page. ▸ View Available Hint(s) [5] ΑΣΦ N F7 U J * h 8 DII F8 M C I ( 9 7 K F9 ? ? O = : F11 ; { [ option + = ? F12 11 I Review 1 } deleteA stray dog catcher drives 34km east, picks up some dogs, then drives 10km west to drop them off before continuing east for 21km. 30N of force is being applied constantly parallel to the dog catcher's motion. Solve for the work the dog catcher has accomplished."If vectors A = 4i + 3j + 2k and B = 2i + 3j + 2k, then the dot product A.B will be equal to... "
- All of the following are TRUE regarding levers EXCEPT O a lever can increase the effect of force application to a body O a lever can increase the speed with which a body can be moved O a lever can increase the distance through which a body can be moved in a given time O the effect a lever has is dependent upon the location of the fulcrum, resistance, and the force in relation to each other. O all of the above are trueA 8.84 kg object is initially moving at 4.01 m/s. After a time of 2.27 s, the object is moving at a rate of 7.77 m/s. What net work was done on the object?