A 20.8-kg chandelier hangs from a ceiling on a vertical 3.51-m-long wire. What horizontal force (in N) would be necessary to displace its position 0.719 m to one side?
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A 20.8-kg chandelier hangs from a ceiling on a vertical 3.51-m-long wire. What horizontal force (in N) would be necessary to displace its position 0.719 m to one side?
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- A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 192 N and is 3.1 m long. What is the tension in each rope when the 710–N worker stands 1.06 m from one end? Smaller tension? Larger tension?A traffic signal is supported by two cables, each of which makes an angle of 40.0 degrees with the vertical. If each cable can exert a maximum force of 7.50 * 10^2 N, what is the largest weight they can support?When a 100 N bag of nails hangs motionless from a single vertical strand of rope, how many newtons of tension are exerted in the strand? What if the bag is supported by four vertical strands?
- A horizontal force of 140 N is applied to a stationary wooden box in one direction, and a 800 N horizontal force is applied in the opposite direction. What additional force is needed for the box to remain stationary?A 100-kg box is suspended from two ropes; the left one makes an angle of 20 0 with vertical, and the other makes an angle of 40 O. What is the tension in each rope? Select the correct response: 2.5 and 4.7 N139.5 and 262,7 N 39.5 and 74.8 N 108.3 and 88.8 NHow much tension must a 28.0 m long wire be able to exert without breaking when it is used to hang an iron sculpture that weighs 2784 N? The wire must be attached to two anchors in the ceiling 16.1 m apart.
- A 26.8 kg box sits on a ramp at an angle of 13° above the horizontal. If the coefficient of static friction between the box on the ramp is 0.215, what minimum applied force is required to keep the box at rest?A picture frame hung against a wall is suspended by two wires attached to its upper corners. If the two wires make the same angle with the vertical, what must this angle be if the tension in each wire is equal to 0.75 of the weight of the frame?A worker pulls a 15-kg crate in a straight line on a level surface by imparting a horizontal tension of 80 N to the free end of a cable whose other end is attached to the crate. If the coefficient of static friction is 0.40, what is the acceleration of the crate?
- A 20 kg traffic light hangs midway on a cable between two poles 40 meters apart. If the sag in the cable is 0.40 meters, what is the tension in each side of the cable?A telephone pole is supported by a guy wire which exerts a pull of 300 N on the top of the pole. If the angle between the wire the pole is 60 degrees, what is the vertical component of the pull on the pole?An object hangs between two walls which are 1.8 m apart. If the rope sags 15° below horizontal and the object’s mass is 1.5 kg, what is the tension in the rope?