Realizing that she otten doesn't have her students' full attention during class, a professor devises an elaborate device on which to stand while she Part C lectures. (Figure 1)The pulley is placed so that the string makes a 45.0-degree angle with the beam. The beam is uniform, 5.00 meters long. and has weight wr. The professor stands 2.00 meters from the pivot point and has weight wp. How many students have to get A's on the test to hoist the professor up into the air? Express your answer as an integer. ? Figure 1 of 1 students Submit

Realizing that she otten doesn't have her students' full attention during class, a professor devises an elaborate device on which to stand while she Part C lectures. (Figure 1)The pulley is placed so that the string makes a 45.0-degree angle with the beam. The beam is uniform, 5.00 meters long. and has weight wr. The professor stands 2.00 meters from the pivot point and has weight wp. How many students have to get A's on the test to hoist the professor up into the air? Express your answer as an integer. ? Figure 1 of 1 students Submit

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Answer it correctly please. I ll rate accordingly. Explain well and type answer please.
Part A, B, and C
A sign for a pizza restaurant hangs from a 2.60-m long rod extended out from a building. A cable, attached to the building, is attached to the rod at a point that is 2.10 m from the hidge. (See the figure.)The mass of the rod is 4.80 kg. The mass of the sign is 7.10 kg. The angle between the building and the rod is 50.0 degrees. The angle between the cable and the horizontal is 38.0 degrees. The tension in the cable is 90.27 N.What is the vertical component of the reaction force from then hinge on the rod?
Please answer the question in the picture below. Thank you so much for your help!!
Reminders: Write out the equation you intend to use before substituting in it.
I need Part A and Part B
The uniform seesaw shown below is balanced on a fulcrum located d1 = 3.5m from the left end. The bigger boy on the left end has a mass m1 =75 kg. The smaller boy on the right end has a mass of m2 = 55 kg and is a distance d2 = 4.5 m from the fulcrum. The mass of the board is mb. Draw all forces acting on the seesaw board showing their directions and locations. Where would you draw the weight of the board? Identify and show the direction of rotations caused by the torques provided by all forces about the fulcrum. If the seesaw is in static equilibrium, write down the two conditions of static equilibrium symbolically using the forces and distances in the figure. Solve for the mass of the board. Calculate the force of fulcrum on the board.
Two children are trying to balance on a seesaw, which includes a fulcrum and a board that is 10m long. Boy A has a mass of 50kg, and boy B has a mass of 35kg. How far from the pivot point should boy B be to maintain stable equilibrium?
Learning material says that the answer is Ff = 244.29 N, but it didn't show how to get that answer. Other answers found on this site say it's 1646.45 N. Which one is the wrong answer? How is it wrong? Please enlighten me. Thank you.
A. Five ropes in a pulley system support a large weight, W. What is the magnitude of the weight if the Tension in Rope #1 equals 100 N? The weight is in equilibrium. B. A pulling force of 600 N is being applied to that bracket at point A. Compute the magnitude of the moment about the origin, O. Be sure to also indicate whether the sign of the moment is positive or negative. C. Compute the unit vector, for the Resultant force in Problem #2. Fill in the blanks: ?= _________ + __________ + ___________????
Three children are trying to balance on a seesaw. The seesaw is 3.7 m long and pivots about a rock at its center. Louie and Laura are already sitting on opposite ends. If Martha weighs 29 kg, where should she sit so as to balance the seesaw?