1 About Science 2 Mechanical Equilibrium 3 Newton's First Law Of Motion-interia 4 Linear Motion 5 Projectile Motion 6 Newton's Second Law Of Motion-force And Acceleration 7 Newton's Third Law Of Motion- Action And Reaction 8 Momentum 9 Energy 10 Circular Motion 11 Rotational Equilibrium 12 Rotational Motion 13 Universal Gravitation 14 Satellite Motion 15 Special Relativity-space And Time 16 Relativity-momentum, Mass, Energy, And Gravity 17 The Atomic Nature Of Matter 18 Solids 19 Liquids 20 Gases 21 Temerpature Heat, And Expansion 22 Heat Tranfer 23 Change Of Phase 24 Thermodynamics 25 Vibrations And Waves 26 Sound 27 Light 28 Color 29 Reflection And Refraction 30 Lenses 31 Diffractioon And Interference 32 Electrostatics 33 Electric Fileds And Potential 34 Electric Current 35 Electric Circuits 36 Magnetism 37 Electromagnetic Induction 38 The Atom And The Quantum 39 The Atomic Nucleus And Radioactivity 40 Nuclear Fission And Fusion expand_more
Chapter Questions expand_more
Problem 1A: What produces acceleration? Problem 2A: In Chapter 4 we defined acceleration as the time rate of change of velocity. What other equation for... Problem 3A: Is acceleration directly proportional to mass, or is it inversely proportional to mass? Problem 4A: If two quantities are inversely proportional to each other, does that mean as one increases the... Problem 5A: If the net force acting on a sliding block is tripled, what happens to the acceleration? Problem 6A: If the mass of a sliding block is tripled at the same time the net force on it is tripled, how does... Problem 7A: Motion is affected by solid objects in contact. In what other situations does friction affect... Problem 8A: Suppose you exert a horizontal push on a crate that rests on a level floor, and it doesnt move. How... Problem 9A: How great is the air resistance that acts on a 10-N sack that falls in air at constant velocity? Problem 10A: Distinguish between force and pressure. Problem 11A: When do you produce more pressure on the ground, standing or lying down? Problem 12A: Why is it important that many nails are in the boards of Figure 6.7? Problem 13A: What is meant by freefall? Problem 14A: The ratio of circumference/diameter for all circles is . What is the ratio of force/mass for all... Problem 15A: Why doesnt a heavy object accelerate more than a light object when both are freely falling? Problem 16A: Does air resistance on a falling object increase or does it decrease with increasing speed? Problem 17A: If two objects of the same size fall through air at different speeds, which encounters the greater... Problem 18A: What is the acceleration of a falling object that has reached its terminal velocity? Problem 19A: What, besides speed, affects the air resistance on a skydiver? Problem 20A: How much air resistance acts on a falling 100-N box of nails when it reaches terminal velocity? Problem 21A: Each diagram shows a ball traveling from left to right. The position of the ball each second is... Problem 22A: Boxes of various masses are on a friction-free level table. Rank each of the following from greatest... Problem 23A: Each block on the friction-free lab bench is connected by a string and pulled by a second falling... Problem 24A Problem 25A: Calculate the acceleration of a 40-kg crate of softball gear when pulled sideways with net force of... Problem 26A: Calculate the acceleration of a 2000-kg, single-engine airplane as it begins its takeoff with an... Problem 27A: Calculate the acceleration of a 300,000-kg jumbo jet just before takeoff when the thrust for each of... Problem 28A: Calculate the acceleration if you push with a 20-N horizontal force against a 2-kg block on a... Problem 29A: Calculate the horizontal force that must be applied to a 1-kg puck to make it accelerate on a... Problem 30A: Calculate the horizontal force that must be applied to produce an acceleration of 1.8g for a 1.2-kg... Problem 31A: If you push horizontally on your book with a force of 1 N to make the book slide at constant... Problem 32A: Terry says that if an object has no acceleration, then no forces are exerted on it. Sherry doesnt... Problem 33A: When a car is moving in reverse, backing from a driveway, the driver applies the brakes. In what... Problem 34A: The auto in the sketch moves forward as the brakes are applied. A bystander says that during the... Problem 35A: What is the difference between saying that one quantity is proportional to another and saying it is... Problem 36A: What is the acceleration of a rock at the top of its trajectory when thrown straight upward? Explain... Problem 37A: When blocking in football, why does a defending lineman often attempt to get his body under that of... Problem 38A: An aircraft gains speed during takeoff due to the constant thrust of its engines. When is the... Problem 39A: A rocket becomes progressively easier to accelerate as it travels through outer space. Why is this... Problem 40A: A common saying goes, 'Its not the fall that hurts you; its the sudden stop.' Translate this into... Problem 41A: On which of these hills does the ball roll down with increasing speed and decreasing acceleration... Problem 42A: Why does a sharp knife cut better than a dull knife? Problem 43A: When Helen lifts one foot and remains standing on a bathroom scale, pressure on the scale is... Problem 44A: Aristotle claimed the speed of a falling object depends on its weight. We now know that objects in... Problem 45A: After learning why objects of different mass have the same acceleration in free fall, Erik wonders... Problem 46A: In a vacuum, a coin and a feather fall side by side. Would it be correct to say that in a vacuum... Problem 47A: As a sky diver falls faster and faster through the air (before reaching terminal speed), does the... Problem 48A: After she jumps, a sky diver reaches terminal speed after 10 seconds. Does she gain more speed... Problem 49A: Can you think of a reason why the acceleration of an object thrown downward through the air would... Problem 50A: How does the weight of a falling body compare with the air resistance it encounters just before it... Problem 51A: Why does a cat that falls from a 50-story building hit the safety net with no more speed than if it... Problem 52A: A regular tennis ball and another one filled with sand are dropped at the same time from the top of... Problem 53A: If you drop an object, its acceleration toward the ground is 10m/s2. If you throw it downward... Problem 54A: Suzy Skydiver, who has mass m, steps from the basket of a high-flying balloon of mass M and does a... Problem 55A: What is the acceleration during takeoff of a jumbo jet with a mass of 30,000 kg when the thrust for... Problem 56A: A net force on a 2-kg cart accelerates the cart at 3m/s2. How much acceleration will the same net... Problem 57A: A net force of 10.0 N is exerted by Irene on a 6.7-kg cart for 3.0 seconds. Show that the cart will... Problem 58A: Toby Toobad, who has a mass of 100 kg, is skateboarding at 9.0 m/s when he smacks into a brick wall... Problem 59A: A net force of 10.0 N on a box of plastic foam causes it to accelerate at 2.0m/s2. Show that the... Problem 60A: Austins truck has a mass of 2000 kg. When traveling at 22.0 m/s, it brakes to a stop in 4.0 s. Show... Problem 61A: If a loaded truck that can accelerate at 1m/s2 loses its load and has three-fourths of its original... Problem 62A: An occupant of a car can survive a crash if the deceleration during the crash is less than 30g.... Problem 63A: What is the pressure on a table when a 20-N book with a 0.05-m2 cover lies flat on it? What is the... Problem 64A: A falling 50-kg parachutist experiences an upward acceleration of 6.2m/s2 when she opens her... Problem 65A: A 10-kg mass on a horizontal friction-free air track is accelerated by a string attached to another... Problem 66A: Suppose the masses described in problem 65 are 1 kg and 100 kg, respectively. Compare the... Problem 67A: Skelly the skater is propelled by rocket power. Skelly and the rocket together have a mass of 25 kg.... Problem 68A: Drop a sheet of paper and a coin at the same time. Which reaches the ground first? Why? Now crumple... Problem 69A: Glue a penny to a string. When in a moving automobile, hang the string and penny out a window. Tt... Problem 70A: The net force acting on an object and the resulting acceleration are always in the same direction.... Problem 71A: Write a letter to a friend who has not yet studied physics and tell what you've learned about... format_list_bulleted