College Physics
10th Edition
ISBN: 9781285737027
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Chapter 4, Problem 11WUE
A man exerts a horizontal force of 112 N on a refrigerator of mass 42.0 kg. If the refrigerator doesn’t move, what is the minimum coefficient of static friction between the refrigerator and the floor? (See Section 4.6.)
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Chapter 4 Solutions
College Physics
Ch. 4.3 - Which of the following statements are true? (a) An...Ch. 4.3 - Which has greater value, a newton of gold on Earth...Ch. 4.3 - Respond to each statement, true or false: (a) No...Ch. 4.4 - A small sports car collides head-on with a massive...Ch. 4.5 - Consider the two situations shown in Figure 4.30,...Ch. 4.5 - For the woman being pulled forward on the toboggan...Ch. 4.6 - If you press a book flat against a vertical wall...Ch. 4.6 - A crate is sitting in the center of a flatbed...Ch. 4.6 - Suppose your friend is sitting on a sled and asks...Ch. 4 - Physics Review A hockey player strikes a puck,...
Ch. 4 - Four forces act on an object, given by A = 40.0 N...Ch. 4 - A force of 30.0 N is applied in the positive...Ch. 4 - What would be the acceleration of gravity at the...Ch. 4 - Two monkeys are holding onto a single vine of...Ch. 4 - Two identical strings making an angle of = 30.0...Ch. 4 - Calculate the normal force on a 15.0 kg block in...Ch. 4 - A horizontal force of 95.0 N is applied to a...Ch. 4 - Prob. 9WUECh. 4 - A block of mass 12.0 kg is sliding at an initial...Ch. 4 - A man exerts a horizontal force of 112 N on a...Ch. 4 - An Atwoods machine (Fig. 4.38) consists of two...Ch. 4 - A block of mass m1= 10 kg is on a frictionless...Ch. 4 - A passenger sitting in the rear of a bus claims...Ch. 4 - A space explorer is moving through space far from...Ch. 4 - (a) If gold were sold by weight, would you rather...Ch. 4 - If you push on a heavy box that is at rest, you...Ch. 4 - A ball is held in a persons hand. (a) Identify all...Ch. 4 - A weight lifter stands on a bathroom scale. 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(a) An...Ch. 4 - The heaviest invertebrate is the giant squid,...Ch. 4 - A football punter accelerates a football from rest...Ch. 4 - A 6.0-kg object undergoes an acceleration of 2.0...Ch. 4 - One or more external forces are exerted on each...Ch. 4 - A bag of sugar weighs 5.00 lb on Earth. What would...Ch. 4 - A freight train has a mass of 1.5 107 kg. 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The...Ch. 4 - A 1.00 103-N crate is being pushed across a level...Ch. 4 - A block of mass 3m is placed on a frictionless...Ch. 4 - Consider a large truck carrying a heavy load, such...Ch. 4 - A crate of mass 45.0 kg is being transported on...Ch. 4 - Objects with masses m1 = 10.0 kg and m2 = 5.00 kg...Ch. 4 - A hockey puck struck by a hockey stick is given an...Ch. 4 - The coefficient of static friction between the...Ch. 4 - A student decides to move a box of books into her...Ch. 4 - An object falling under the pull of gravity is...Ch. 4 - A car is traveling at 50.0 km/h on a flat highway....Ch. 4 - A 3.00-kg block starts from rest at the top of a...Ch. 4 - A 15.0-lb block rests on a horizontal floor, (a)...Ch. 4 - To meet a U.S. Postal Service requirement,...Ch. 4 - Objects of masses m1 = 4.00 kg and m2 = 9.00 kg...Ch. 4 - The person in Figure P4.49 weighs 170. lb. 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The...Ch. 4 - Three objects are connected by light strings as...Ch. 4 - A frictionless plane is 10.0 m long and inclined...Ch. 4 - A high diver of mass 70.0 kg steps off a board...Ch. 4 - A 2.00-kg aluminum block and a 6.00-kg copper...Ch. 4 - An object of mass m1 hangs from a string that...Ch. 4 - Two boxes of fruit on a frictionless horizontal...Ch. 4 - Measuring coefficients of friction A coin is...Ch. 4 - A fisherman poles a boat as he searches for his...Ch. 4 - A rope with mass m, is attached to a block with...Ch. 4 - A car accelerates down a hill (Fig. P4.87), going...Ch. 4 - Prob. 74APCh. 4 - The parachute on a race car of weight 8 820 N...Ch. 4 - On an airplanes takeoff, the combined action of...Ch. 4 - The board sandwiched between two other boards in...Ch. 4 - A sled weighing 60.0 N is pulled horizontally...Ch. 4 - A 72-kg man stands on a spring scale in an...Ch. 4 - A magician pulls a tablecloth from under a 200-g...Ch. 4 - An inventive child wants to reach an apple in a...Ch. 4 - A fire helicopter carries a 620-kg bucket of water...Ch. 4 - A crate of weight Fg is pushed by a force P on a...Ch. 4 - In Figure P1.84, the pulleys and the cord are...Ch. 4 - What horizontal force must ho applied to a large...
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