8. As shown in the diagram, an object of mass (m) is in uniform circular motion about a glass tube inserted into a horizontal air table. The centripetal force is provided by a hanging mass of 0.40 kg. The radius (r) of the circular path is 0.35 m, and the period of revolution is 0.80 s. Frictional forces are negligible. What is the mass of the object? * Air Table Glass Tube 0.40 kg Object

8. As shown in the diagram, an object of mass (m) is in uniform circular motion about a glass tube inserted into a horizontal air table. The centripetal force is provided by a hanging mass of 0.40 kg. The radius (r) of the circular path is 0.35 m, and the period of revolution is 0.80 s. Frictional forces are negligible. What is the mass of the object? * Air Table Glass Tube 0.40 kg Object

Name: 8. As shown in the diagram, an object of mass (m) is in uniform circu
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Description: 8. As shown in the diagram, an object of mass (m) is in uniform circular motion about a glass tubeinserted into a horizontal air table. The centripetal force is provided by a hanging mass of 0.40 kg.The radius (r) of the circular path is 0.35 m, and

Physics for Scientists and Engineers with Modern Physics

10th Edition

ISBN:9781337553292

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: The Laws Of Motion

Section: Chapter Questions

Problem 15P: Review. Figure P5.15 shows a worker poling a boata very efficient mode of transportation across a...

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Review. Figure P5.15 shows a worker poling a boata very efficient mode of transportation across a shallow lake. He pushes parallel to the length of the light pole, exerting a force of magnitude 240 N on the bottom of the lake. Assume the pole lies in the vertical plane containing the keel of the boat. At one moment, the pole makes an angle of 35.0 with the vertical and the water exerts a horizontal drag force of 47.5 N on the boat, opposite to its forward velocity of magnitude 0.857 m/s. The mass of the boat including its cargo and the worker is 370 kg. (a) The water exerts a buoyant force vertically upward on the boat. Find the magnitude of this force. (b) Model the forces as constant over a short interval of time to find live velocity of live boat 0.450 s after the moment described. Figure P5.15
In a washing machine, water is extracted from clothes by a rapidly spinning drum ( Fig. 3.27). Explain the physics behind this process. Figure 3.37 Get the Water Out See Applying Your Knowledge Question 5.
of ion Determine the coefficient of friction when an 2050 kg truck takes a circular path (with a radius of 40.1 m) at 13.5 m/s. a. Not shown here. b. 0.0344 Ⓒc. 0.464 d. 0.626 e. 0.232 Ⓒf. 0.0687 g.0.742 Ⓒh. 0.704
Write an equation for the bucket and an equation for the cylinder. Your equations should contain the unknowns: abucket, αcylinder and T, the tension in the rope. Using the relation between αcylinder and arope, as well as your two equations, solve for the acceleration of the bucket. *Please include force diagrams* Info: A bucket of water of mass 20.6 kg is suspended by a rope wrapped around a windlass (a solid cylinder) with diameter 0.426 m and mass 18.0 kg . The cylinder pivots on a frictionless axle through its center. The bucket is released from rest at the top of a well and falls a distance 23.6 m to the water. You can ignore the weight of the rope. In addition, assume that the rope rolls off of the cylinder without slipping.
Question 1 A medium-size catapult launches 5-kg steel spheres as in Figure Q1. The launch speed is given as 30 m/s, the launch angle is 35° above horizontal, and the launch position is 2 meters above the ground level. A 2.5-meter concrete wall is positioned 49 meters from the release point on a sloped tarmac as in Figure Q1. Assume constant gravitational acceleration and no aerodynamic drag i. Identify the height of the additional structure required to be installed on top of the wall in order to block the steel sphere from passing through the wall. Show all the important calculations to justify your answer. ii. Calculate the time duration of the flight and the position coordinate of first impact for the steel sphere when it hits the ground vo = 30 m/s CorConcrete wall 2.5 m 0 = 35° 6 m on. 2/2021 2 m 40 m t+ 9m
The friction offered by a slippery ground is______. *Choose the letter of the correct answer a. very high b. very little c. very difficult d. circular
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A 500 g steel block rotates on a steel table while attached to a 1.20 m -long hollow tube. Compressed air fed through the tube and ejected from a nozzle on the back of the block exerts a thrust force of 5.01 N perpendicular to the tube. The maximum tension the tube can withstand without breaking is 60.0 N. Assume the coefficient of kinetic friction between steel block and steel table is 0.60. (Figure 1) Figure Part A Pivot 15. ΑΣΦ 3.228 [IMG] 1.2 m If the block starts from rest, how many revolutions does it make before the tube breaks? Submit Previous Answers Request Answer ? Tube * Incorrect; Try Again; 4 attempts remaining -Air 1 of 1
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Q8: The 50 kg block is transported over a short distance, using two cylindrical rollers, each with a mass of 17 kg. If a horizontal force of 125 N is applied to the block, determine its speed after shifting 0.6 m to the left. Originally the block is at rest. There's no slippage. P= 125 N 0.45 m 0.45 m
2. Some mice can survive a fall from any height; they do this flattening out their bodies to increase their cross sectional area which acts like a parachute. Model a 20 g mouse as a 4 cm x 9 cm rectangle with a drag coefficient of 1.1, and assume the density of air is 1.2 kg/m³. A. What is the terminal velocity of this mouse? B. Suppose the mouse is falling at 5 m/s. What would be its acceleration at this instant?