Applied Physics
11th Edition
ISBN: 9780132719865
Author: EWEN, Dale
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 7.5, Problem 10P
To determine
Find the force needed at the both end of the wooden plank to hold the load.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A dielectric-filled parallel-plate capacitor has plate area A = 20.0 ccm2 , plate separaton d = 10.0 mm and dielectric constant k = 4.00. The capacitor is connected to a battery that creates a constant voltage V = 12.5 V . Throughout the problem, use ϵ0 = 8.85×10−12 C2/N⋅m2 . Find the energy U1 of the dielectric-filled capacitor. The dielectric plate is now slowly pulled out of the capacitor, which remains connected to the battery. Find the energy U2 of the capacitor at the moment when the capacitor is half-filled with the dielectric. The capacitor is now disconnected from the battery, and the dielectric plate is slowly removed the rest of the way out of the capacitor. Find the new energy of the capacitor, U3. In the process of removing the remaining portion of the dielectric from the disconnected capacitor, how much work W is done by the external agent acting on the dielectric?
In (Figure 1) C1 = 6.00 μF, C2 = 6.00 μF, C3 = 12.0 μF, and C4 = 3.00 μF. The capacitor network is connected to an applied potential difference Vab. After the charges on the capacitors have reached their final values, the voltage across C3 is 40.0 V. What is the voltage across C4? What is the voltage Vab applied to the network? Please explain everything in steps.
I need help with these questions again. A step by step working out with diagrams that explains more clearly
Chapter 7 Solutions
Applied Physics
Ch. 7.1 - Find the sum of each set of forces acting at the...Ch. 7.1 - 703 N (right); 829 N (left); 125 N (left); 484 N...Ch. 7.1 - Forces of 225 N and 175 N act at the same point....Ch. 7.1 - Three forces with magnitudes of 225 N, 175 N, and...Ch. 7.1 - Prob. 5PCh. 7.1 - Find the sum of each set of vectors. Give angles...Ch. 7.1 - If forces of 1000N acting in a northerly direction...Ch. 7.1 - If two forces of 100N and 50.0 N, respectively,...Ch. 7.1 - Find the sum of each set of vectors. Give angles...Ch. 7.1 - Prob. 10P
Ch. 7.1 - Prob. 11PCh. 7.1 - Find the sum of each set of vectors. Give angles...Ch. 7.1 - Forces of F1 = 1150 N, F2 = 875 N, and F3 = 1450 N...Ch. 7.1 - Four forces, each of magnitude 2750 lb, act at the...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Find the force F that will produce equilibrium in...Ch. 7.2 - Five persons are having a tug-of-war. Kurt and...Ch. 7.2 - A certain wire can support 6450 lb before it...Ch. 7.2 - The frictional force of a loaded pallet in a...Ch. 7.2 - A bridge has a weight limit of 7.0 tons. How heavy...Ch. 7.2 - A tractor transmission weighing 260N and a...Ch. 7.2 - A skid loader lifts a compressor weighing 672 N...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - Find the forces F1 and F2 that produce equilibrium...Ch. 7.2 - A rope is attached to two buildings and supports a...Ch. 7.2 - A rope is attached to two buildings and supports a...Ch. 7.2 - If the angles between the horizontal and the ropes...Ch. 7.2 - Find the tension in the horizontal supporting...Ch. 7.2 - Find the tension in the horizontal supporting...Ch. 7.2 - An automobile of mass 1550 kg is towed at a steady...Ch. 7.2 - A vehicle that weighs 16,200 N is parked on a 20.0...Ch. 7.2 - Find the tension in the cable and the compression...Ch. 7.2 - The crane shown in Fig. 7.26 is supporting a load...Ch. 7.2 - The crane shown in Fig. 7.27 is supporting a load...Ch. 7.3 - Given:F=16.0lbr=6.00ft=?Ch. 7.3 - Given:F=100Nr=0.420m=?Ch. 7.3 - Prob. 3PCh. 7.3 - Prob. 4PCh. 7.3 - Given:=65.4Nmr=35.0cmF=?Ch. 7.3 - Given:F=630Nr=74.0cm=?Ch. 7.3 - If the torque on a shaft of radius 2.37 cm is 38.0...Ch. 7.3 - If a force of 56.2 lb is applied to a torque...Ch. 7.3 - A motorcycle head bolt is torqued to 25.0 N m....Ch. 7.3 - A force of 112 N is applied to a shaft of radius...Ch. 7.3 - A torque of 175 lb ft is needed to free a large...Ch. 7.3 - A torque wrench reads 14.5 N m. If its length is...Ch. 7.3 - The torque on a shaft of radius 3.00 cm is 12.0 N...Ch. 7.3 - An engine bolt is torqued to 30.0 N m. If the...Ch. 7.3 - A mower bolt is torqued to 65.0 N m. If the length...Ch. 7.3 - An automobile bolt is torqued to 27.0 N m. If the...Ch. 7.3 - A torque wrench reads 25 lb ft. (a) If its length...Ch. 7.3 - If 13 N m of torque is applied to a bolt with an...Ch. 7.3 - If the torque required to loosen a nut on the...Ch. 7.3 - If the torque required to loosen a nut on the...Ch. 7.3 - A truck mechanic must loosen a rusted lug nut. If...Ch. 7.3 - An agricultural mechanic tries to loosen a nut on...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Find the force F that will produce equilibrium for...Ch. 7.4 - Prob. 9PCh. 7.4 - A 5000-lb truck is 20.0 ft from one end of a...Ch. 7.4 - Prob. 11PCh. 7.4 - An auto transmission of mass 165 kg is located...Ch. 7.4 - A bar 8.00 m long supports masses of 20.0 kg on...Ch. 7.4 - Two painters, each of mass 75.0 kg, stand on a...Ch. 7.4 - Two painters, one of mass 75.0 kg and the other...Ch. 7.4 - Two painters stand on a 10.00-m scaffold. One, of...Ch. 7.4 - An auto differential with a mass of 76.0 kg is...Ch. 7.4 - Prob. 18PCh. 7.5 - Solve for F1 : 30.0F1 = (14.0)(18.0) +...Ch. 7.5 - Solve for Fw : (12.0)(15.0) + 45.0Fw =...Ch. 7.5 - Two workers carry a uniform 15.0-ft plank that...Ch. 7.5 - Juan and Pablo carry a load weighing 720 N on a...Ch. 7.5 - A wooden beam is 3.30 m long and has its center of...Ch. 7.5 - An auto engine weighs 650lb and is located 4.00 ft...Ch. 7.5 - A bridge across a country stream weighs 89,200 N....Ch. 7.5 - A window washers scaffold 12.0 ft long and...Ch. 7.5 - A porch swing weighs 29.0 lb. It is 4.40 ft long...Ch. 7.5 - Prob. 10PCh. 7.5 - A bridge has a mass of 1.60 104 kg, is 21.0 m...Ch. 7.5 - A uniform steel beam is 5.00 m long and weighs 360...Ch. 7.5 - A wooden pole is 4.00 m long, weighs 315 N, and...Ch. 7.5 - A bridge has a mass of 2.60 104 kg, is 32.0 m...Ch. 7.5 - An auto engine of mass 295 kg is located 1.00 m...Ch. 7.5 - A 125-kg horizontal beam is supported at each end....Ch. 7.5 - Prob. 17PCh. 7.5 - The uniform bar in Fig. 7.49 is 5.00 m long and...Ch. 7.5 - Find the magnitude, direction, and placement (from...Ch. 7.5 - Find the magnitude, direction, and placement (from...Ch. 7 - Concurrent forces act at a. two or more different...Ch. 7 - The resultant force is a. the last force applied....Ch. 7 - A moving object a. can be in equilibrium. b. is...Ch. 7 - The study of an object in equilibrium is called a....Ch. 7 - Torque is a. applied force in rotational motion....Ch. 7 - The first condition of equilibrium states that a....Ch. 7 - In the second condition of equilibrium. a....Ch. 7 - The center of gravity of an object a. is always at...Ch. 7 - Is motion produced every time a force is applied...Ch. 7 - Prob. 10RQCh. 7 - Define equilibrium.Ch. 7 - In what direction does the force due to gravity...Ch. 7 - What may be said about concurrent forces whose sum...Ch. 7 - What is a force diagram?Ch. 7 - Is the length of the pedal necessarily the true...Ch. 7 - In your own words, explain the second condition of...Ch. 7 - What is the primary consideration in the selection...Ch. 7 - List three examples from daily life in which you...Ch. 7 - Is the center of gravity of an object always at...Ch. 7 - Prob. 20RQCh. 7 - Find the sum of the following forces acting at the...Ch. 7 - Forces of 275 lb and 225 lb act at the same point....Ch. 7 - Prob. 3RPCh. 7 - Prob. 4RPCh. 7 - Prob. 5RPCh. 7 - Forces of F1 = 1250 N, F2 = 625 N, and F3 = 1850 N...Ch. 7 - Eight people are involved in a tug-of-war. The...Ch. 7 - A bridge has a weight limit of 14.0 tons. What is...Ch. 7 - The x-components of three vectors are Fx, 375...Ch. 7 - If Wy=600N and Wx=900N, what are the magnitude and...Ch. 7 - Find forces F1 and F2 that produce equilibrium in...Ch. 7 - Prob. 12RPCh. 7 - Find the tension in the cable and the compression...Ch. 7 - Find the tension in each cable in Fig. 7.51.Ch. 7 - Find the tension in each cable in Fig. 7.52.Ch. 7 - Find the tension and the compression in Fig. 7.53.Ch. 7 - A man is changing a flat tire using a tire iron...Ch. 7 - A torque of 81.0 lb ft is produced by a torque arm...Ch. 7 - A hanging sign has mass 200kg. If the tension in...Ch. 7 - A scaffold supports a bricklayer and bricks...Ch. 7 - Two ladders at the ends of a scaffold support a...Ch. 7 - How far from the light end of a 68.0-cm bat would...Ch. 7 - A bridge has mass 8000kg. If a 3200-kg truck stops...Ch. 7 - If the truck in Problem 23 stops 7.00 m from one...Ch. 7 - A uniform 2.20-kg steel bar with length 2.70 m is...Ch. 7 - Find the vertical force needed to support the...Ch. 7 - A horizontal cable supports the boom of a crane....Ch. 7 - Archeologists in Egypt are attempting to open a...Ch. 7 - Sean and Greg are on a job site standing on two...Ch. 7 - Maria has severe arthritis and can apply a maximum...Ch. 7 - Kristas flagpole bracket is mounted at an angle of...Ch. 7 - Prob. 5AC
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- In a certain region of space the electric potential is given by V=+Ax2y−Bxy2, where A = 5.00 V/m3 and B = 8.00 V/m3. Calculate the direction angle of the electric field at the point in the region that has cordinates x = 2.50 m, y = 0.400 m, and z = 0. Please explain. The answer is not 60, 120, or 30.arrow_forwardAn infinitely long line of charge has linear charge density 4.00×10−12 C/m . A proton (mass 1.67×10−−27 kg, charge +1.60×10−19 C) is 18.0 cm from the line and moving directly toward the line at 4.10×103 m/s . How close does the proton get to the line of charge?arrow_forwardat a certain location the horizontal component of the earth’s magnetic field is 2.5 x 10^-5 T due north A proton moves eastward with just the right speed so the magnetic force on it balances its weight. Find the speed of the proton.arrow_forward
- Example In Canada, the Earth has B = 0.5 mT, pointing north, 70.0° below the horizontal. a) Find the magnetic force on an oxygen ion (O) moving due east at 250 m/s b) Compare the |FB| to |FE| due to Earth's fair- weather electric field (150 V/m downward).arrow_forwardThree charged particles are located at the corners of an equilateral triangle as shown in the figure below (let q = 2.20 µC, and L = 0.810 m). Calculate the total electric force on the 7.00-µC charge. What is the magnitude , what is the direction?arrow_forward(a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 9.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) Imagine adding electrons to the pin until the negative charge has the very large value 2.00 mC. How many electrons are added for every 109 electrons already present?arrow_forward
- (a) Calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 13.0 g. Silver has 47 electrons per atom, and its molar mass is 107.87 g/mol.arrow_forward8 Two moving charged particles exert forces on each other because each creates a magnetic field that acts on the other. These two "Lorentz" forces are proportional to vix (2 xr) and 2 x (vi x-r), where is the vector between the particle positions. Show that these two forces are equal and opposite in accordance with Newton's third law if and only if rx (vi × 2) = 0.arrow_forward6 The force = +3 + 2k acts at the point (1, 1, 1). Find the torque of the force about (a) (b) the point (2, -1, 5). Careful about the direction of ŕ between the two points. the line = 21-+5k+ (i-+2k)t. Note that the line goes through the point (2, -1, 5).arrow_forward
- 5 Find the total work done by forces A and B if the object undergoes the displacement C. Hint: Can you add the two forces first?arrow_forward1 F2 F₁ -F₁ F6 F₂ S A Work done on the particle as it moves through the displacement is positive. True False by the force Farrow_forwardA student measuring the wavelength produced by a vapour lamp directed the lightthrough two slits with a separation of 0.20 mm. An interference pattern was created on the screen,3.00 m away. The student found that the distance between the first and the eighth consecutive darklines was 8.0 cm. Draw a quick picture of the setup. What was the wavelength of the light emittedby the vapour lamp?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
College PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage Learning
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Glencoe Physics: Principles and Problems, Student...
Physics
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Glencoe/McGraw-Hill
Physics for Scientists and Engineers: Foundations...
Physics
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Cengage Learning
University Physics Volume 1
Physics
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:OpenStax - Rice University
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
College Physics
Physics
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning