You are building additional storage space in your garage. You decide to suspend a 10.0 kg sheet of plywood of dimensions 0.600 m wide by 2.25 m long from the ceiling. The plywood will be held in a horizontal orientation by four light vertical chains attached to the plywood at its corners and mounted to the ceiling. After you complete the job of suspending the plywood from the ceiling, you choose three cubic boxes to place on the shelf. Each box is 0.750 m on a side. Box 1 has a mass of 50.0 kg, Box 2 has a mass of 100 kg, and Box 3 has a mass of 125 kg. The mass of each box is uniformly distributed within the box and each box is centered on the front-to-back width of the shelf. Unbeknownst to you, one of the chains on the right-hand end of your shelf is defective and will break if subjected to a force of more than 700 N. There are six possible arrangements of the three boxes on the shelf, for example, from left to right, Box 1, Box 2, Box 3, and Box 1, Box 3, Box 2, and four more. Which arrangements are safe (that is, the defective chain will not break if the boxes are arranged in this way)? (Select all that apply.)

You are building additional storage space in your garage. You decide to suspend a 10.0 kg sheet of plywood of dimensions 0.600 m wide by 2.25 m long from the ceiling. The plywood will be held in a horizontal orientation by four light vertical chains attached to the plywood at its corners and mounted to the ceiling. After you complete the job of suspending the plywood from the ceiling, you choose three cubic boxes to place on the shelf. Each box is 0.750 m on a side. Box 1 has a mass of 50.0 kg, Box 2 has a mass of 100 kg, and Box 3 has a mass of 125 kg. The mass of each box is uniformly distributed within the box and each box is centered on the front-to-back width of the shelf. Unbeknownst to you, one of the chains on the right-hand end of your shelf is defective and will break if subjected to a force of more than 700 N. There are six possible arrangements of the three boxes on the shelf, for example, from left to right, Box 1, Box 2, Box 3, and Box 1, Box 3, Box 2, and four more. Which arrangements are safe (that is, the defective chain will not break if the boxes are arranged in this way)? (Select all that apply.)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Questions b-d
After years of asking, you finally were allowed to go on a joy ride in your uncle’s 1956 Mercedes-Benz 300 SL. A notable feature of this vehicle is the gullwing door design that opens from a hinge at the top of the car. Unfortunately, you are having so much fun driving the car that you end up submerged in a fresh water lake. You sink to the bottom of the lake, which has a depth of 10 m. For the sake of simplicity, you can model the door as a 1 m × 1 m square plate, inclined at 45° relative to the floor of the lake. Neglect the weight of the door and friction in the hinge. How much force will be required to open the door, assuming you push from its geometric center?
a garage door 20 ft long and 10 ft high weighs 90 lbs. the hinges are 2 ft from the upper and lower sides respectively and the upper hinge carries the entire weighs of the door. find the reaction of the upper hinge.
Three identical 8.60-kg masses are hung by three identical springs, as shown in the figure. (Figure 1) Each spring has a force constant of 5.90 kN/m and was 11.0 cm long before any masses were attached to it. Make a free-body diagram for the top mass. Draw the vectors starting at the black dot at the center of the top mass.
answer coherently
A force of 30 N is applied to the input piston of a hydraulic jack. If the input and output piston have areas of 0.2 m² and 0.8 m², respectively, what is the minimum weight that can be lifted by the jack?
Only need help with the analysis on the stability of the mechanical equilibrium Suppose an iceberg is shaped as a solid circular cylinder of arbitrary diameter, such that it floats as illustrated in Figure 1. If the cylinder extends 2 m above the free surface of the ocean, determine the depth of the cylinder (b) below the free surface of the ocean. Consider that the density of the ocean water is Pa = 1024 kg/m3 and the density of the iceberg ice is Ph = 935 kg/m3. Additionally, make a descriptive analysis on the stability of the mechanical equilibrium state of the iceberg, if a normal force is applied on one edge of the top cap of the iceberg, consider cylinder radi less than 2 m and greater than 2 m. 2 m
A 61.0-kg survivor of a cruise line disaster rests atop a block of Styrofoam insulation, using it as a raft. The Styrofoam has dimensions 2.00 m ✕ 2.00 m ✕ 0.0870 m. The bottom 0.022 m of the raft is submerged. A. Write Newton's second law for the system in one dimension, using B for buoyancy, w for the weight of the survivor, and wr for the weight of the raft. (Set a = 0. Solve for Fy, the y-component of the net force. Let upward be the positive y-direction.) Fy = ( ) = 0 B. Calculate the numeric value for the buoyancy, B. (Seawater has density 1025 kg/m3. Enter the answer to at least the ones digit.) C. Using the value of B and the weight w of the survivor, calculate the weight wr of the Styrofoam. D. What is the density of the Styrofoam? E. What is the maximum buoyant force, corresponding to the raft being submerged up to its top surface? F. What total mass of survivors can the raft support?
Discussion question: A 5.0 meter diving board is shown below. A 50.0 kg diver stands on the right end, and the board has a mass of 70.0 kg. The board is connected to the platform at its left end, and there is a support under the board as shown below. (a) If the support is 1.5 meters from the left end, what is the force exerted by the support? (b) what is the force exerted by the connection at the left end of the board? L
Block 1 (19 kg) is setting on the floor of an elevator. A rope pulls vertically up on block 1 with a tension of 10 N. The elevator is moving downward with a decreasing speed and the magnitude of the acceleration is 2 m/s2.On a sheet of paper, draw the free body diagram for block 1 using the two-subscript notation from class. After completing the free body diagram, enter below each force and its x & y-components. Remember that the x-component is the "i" component and the y-component is the "j" component. NET force on Block 1Fnet1 = i + j N FORCES on BLOCK 1Weight force on block 1 by EarthW1E = i + j N Tension Force on block 1 by RopeT1R = i + j N Normal force on block 1 by SurfaceN1S = i + j N
QV: a hydraulic press is used to compact powdered samples. The device is made of two interconnected cylindrical chambers filled with oil if density psubscripto anc closed by two pistons. The small chamber on the right has diameter d and the large chamber on the left has diameter 5d. A lever is attached to the piston pushing down on the fluid in the small cylinder. The horizontal lever is hinged on the left, at distance L from the small piston, and a force of magnitude Fsubscript0 is applied vertically down at distance 2L from the hinge (Fig.5). You may assume that the lever and pistons have negligible mass. a. Determine the magnitude of the force Fin that the small piston exerts on the fluid in the small cylinder. Hint: you may consider that the lever is at rest in the horizontal position. b. Determine the pressure change applied to the fluid by the small piston. c. Determine the magnitude Fout of the force that the fluid applies to the large piston.