6. A first-class lever, 2.8 m long, has a load force of magnitude 6.8 x 102...
6. A first-class lever, 2.8 m long, has a load force of
magnitude 6.8 x 102 N located 1.2 m from the
fulcrum.
a) Draw a diagram of the lever, showing the fulcrum, forces and
distances involved.
b) Calculate the magnitude of the effort force at the end of the
lever needed to balance the load.
7. A wheelbarrow has a 95-kg load located at 0.60 m from the
fulcrum. An effort Force of magnitude 5.2 x 102 N is
needed to lift the handles of the wheelbarrow.
a) Calculate the magnitude of the load force.
b) Calculate the distance from the effort force to the load.
Homework Answers
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6. A first-class lever, 2.8 m long, has a load force of
magnitude 6.8 x 102...
P9.007 (GO Tutorial) A 6.8 m long simply supported wood beam carries a uniformly distributed load...
P9.007 (GO Tutorial) A 6.8 m long simply supported wood beam carries a uniformly distributed load of 10.6 kN/m, as shown in Figure A. The cross-sectional dimensions of the beam as shown in Figure B are b = 180 mm, d-460 mm, ун-92 mm, and VK-1 44 mm. Section a-a is located at x-1.3 m from B (a) At section a-a, determine the magnitude of the shear stress in the beam at point H. (b) At section a-a, determine the...
help which has a mass of 1.70 x 102 kg and a radius of 1.2 m,...
help
which has a mass of 1.70 x 102 kg and a radius of 1.2 m, is spinning at a constant ra 2 rev/s. Treat the two children and the as a system, (a) Calculate the angular momentum of the system, treating each child as a particle. (Give the magnitude.) 42560 kg m2/s ) Calculate the total kinetic energy of the system 427 86 (e) Both children walk half the distance toward the center of the merry-go-round. Calculate the final...
tx=1 m, y = 2 m. A point charge of -6 pC is located at x...
tx=1 m, y = 2 m. A point charge of -6 pC is located at x 3 m, y =-2 m. A second point charge of 12 C is located at (a) Find the magnitude and direction of the electric field at x = -1 m, y = 0. | N/C Reset Enter Help 12.5 points] 1 attempt (s) made (maximum allowed for credit [after that, multiply credit by 0.5 up to 10 attempts 8.4e3 NO 5) (counterclockwise from plus...
A point chargc of -6 C is locatcd at x-3 m, y--2 m. A sccond point...
A point chargc of -6 C is locatcd at x-3 m, y--2 m. A sccond point charge of 12 uC is located at x (a) Find the magnitude and direction of the electric field at x--1 m, y 0 N/CReset Enter 3150 12.5 pointsj 1 attempt(s) made (maximum allowed for credit - J) latter that, multiply credit by 0.5 up to 10 attempts」 3150 NO HELP: Keep this analysis simple. You can use Coulomb's law for electric fields to calculate...
10. + 0/3 points | Previous Answers SerPSET9 12.P.021. My Notes + Ask Your Teacher John...
10. + 0/3 points | Previous Answers SerPSET9 12.P.021. My Notes + Ask Your Teacher John is pushing his daughter Rachel in a wheelbarrow when it is stopped by a brick 8.00 cm high (see the figure below). The handles make an angle of a = 20.0° with the ground. Due to the weight of Rachel and the wheelbarrow, a downward force of 405 N is exerted at the center of the wheel, which has a radius of 15.0 cm....
4. If a metallic wire of cross-sectional area 3.0x 10 m carries a current of 6 A and has a mobile charge density of 4.24 x ca * 10M carriers/m2 what is the average drift velocity of the mobile...
4. If a metallic wire of cross-sectional area 3.0x 10 m carries a current of 6 A and has a mobile charge density of 4.24 x ca * 10M carriers/m2 what is the average drift velocity of the mobile charge carriers? (charge value 1.6x 10 " coul) a. 3.4 x10 m/s b. 1.7 x 10' m/s c. 1.5x 10 m/s d. 2.9 x 10 m/s S. If a certain capacitor is charged to 10 V and then, at t -0,...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the ver...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
Home work foy ch 23 1. A cork ball that is covered with conducting paint and...
Home work foy ch 23 1. A cork ball that is covered with conducting paint and charged to 4 × 10-10C is touched by an identical but un- charged cork ball; the balls then separate. This second cork ball is then touched by a third uncharged cork ball, and they separate. What is the charge of each ball at the end. and how many excess electrons does each ball have? 2. An electron and a proton attract each other with...
40kN Uniform Load W kN/m X Span L L/2 Figure 1 SPAN L 6 W 11Kn/m Beam is 200 UB 18.2 Use the diagram above and the W an...
40kN Uniform Load W kN/m X Span L L/2 Figure 1 SPAN L 6 W 11Kn/m Beam is 200 UB 18.2 Use the diagram above and the W and L values assigned to you to: a) Use your shear force diagram to calculate the Maximum longitudinal Shear Stress and where it occ Ccurs. b) Calculate the longitudinal Shear Stress at d/4 from the neutral axis. Check Figures 283 below this table BENDING MOMENT DIAGLAM Kp/m f:40 zm 7.5 KN-M 90...
need ans for the following questions, the last 3 pages for more info. Questions: more info:...
need ans for the following questions, the last 3 pages for more
info.
Questions:
more info:
expermint e/m avr=1.71033*10^11
7 2 points of the following options, which conditions for V or I produce the largest radius of the electron beam path r? Hint: Use e/m= 2V (5/4)*aP/(Nuo Ir) Maximum land Maximum V O Maximum land Minimum V Minimum I and Maximum V Minimum I and Minimum V 8 2 points By what factor will change if the radius of the...
P9.007 (GO Tutorial) A 6.8 m long simply supported wood beam carries a uniformly distributed load of 10.6 kN/m, as shown in Figure A. The cross-sectional dimensions of the beam as shown in Figure B are b = 180 mm, d-460 mm, ун-92 mm, and VK-1 44 mm. Section a-a is located at x-1.3 m from B (a) At section a-a, determine the magnitude of the shear stress in the beam at point H. (b) At section a-a, determine the...
help
which has a mass of 1.70 x 102 kg and a radius of 1.2 m, is spinning at a constant ra 2 rev/s. Treat the two children and the as a system, (a) Calculate the angular momentum of the system, treating each child as a particle. (Give the magnitude.) 42560 kg m2/s ) Calculate the total kinetic energy of the system 427 86 (e) Both children walk half the distance toward the center of the merry-go-round. Calculate the final...
tx=1 m, y = 2 m. A point charge of -6 pC is located at x 3 m, y =-2 m. A second point charge of 12 C is located at (a) Find the magnitude and direction of the electric field at x = -1 m, y = 0. | N/C Reset Enter Help 12.5 points] 1 attempt (s) made (maximum allowed for credit [after that, multiply credit by 0.5 up to 10 attempts 8.4e3 NO 5) (counterclockwise from plus...
A point chargc of -6 C is locatcd at x-3 m, y--2 m. A sccond point charge of 12 uC is located at x (a) Find the magnitude and direction of the electric field at x--1 m, y 0 N/CReset Enter 3150 12.5 pointsj 1 attempt(s) made (maximum allowed for credit - J) latter that, multiply credit by 0.5 up to 10 attempts」 3150 NO HELP: Keep this analysis simple. You can use Coulomb's law for electric fields to calculate...
10. + 0/3 points | Previous Answers SerPSET9 12.P.021. My Notes + Ask Your Teacher John is pushing his daughter Rachel in a wheelbarrow when it is stopped by a brick 8.00 cm high (see the figure below). The handles make an angle of a = 20.0° with the ground. Due to the weight of Rachel and the wheelbarrow, a downward force of 405 N is exerted at the center of the wheel, which has a radius of 15.0 cm....
4. If a metallic wire of cross-sectional area 3.0x 10 m carries a current of 6 A and has a mobile charge density of 4.24 x ca * 10M carriers/m2 what is the average drift velocity of the mobile charge carriers? (charge value 1.6x 10 " coul) a. 3.4 x10 m/s b. 1.7 x 10' m/s c. 1.5x 10 m/s d. 2.9 x 10 m/s S. If a certain capacitor is charged to 10 V and then, at t -0,...
A 3 m rigid bar AB is supported with a vertical translational spring at A and a pin at B The bar is subjected to a linearly varying distributed load with maximum intensity g Calculate the vertical deformation of the spring if the spring constant is 700 kN/m. (ans: 21.43 mm) 2. A steel cable with a nominal diameter of 25 mm is used in a construction yard to lift a bridge section weighing 38 kN. The cable has an...
Home work foy ch 23 1. A cork ball that is covered with conducting paint and charged to 4 × 10-10C is touched by an identical but un- charged cork ball; the balls then separate. This second cork ball is then touched by a third uncharged cork ball, and they separate. What is the charge of each ball at the end. and how many excess electrons does each ball have? 2. An electron and a proton attract each other with...
40kN Uniform Load W kN/m X Span L L/2 Figure 1 SPAN L 6 W 11Kn/m Beam is 200 UB 18.2 Use the diagram above and the W and L values assigned to you to: a) Use your shear force diagram to calculate the Maximum longitudinal Shear Stress and where it occ Ccurs. b) Calculate the longitudinal Shear Stress at d/4 from the neutral axis. Check Figures 283 below this table BENDING MOMENT DIAGLAM Kp/m f:40 zm 7.5 KN-M 90...
need ans for the following questions, the last 3 pages for more
info.
Questions:
more info:
expermint e/m avr=1.71033*10^11
7 2 points of the following options, which conditions for V or I produce the largest radius of the electron beam path r? Hint: Use e/m= 2V (5/4)*aP/(Nuo Ir) Maximum land Maximum V O Maximum land Minimum V Minimum I and Maximum V Minimum I and Minimum V 8 2 points By what factor will change if the radius of the...
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