1 About Science 2 Newton’s First Law Of Motion - The Law Of Inertia 3 Newton’s Second Law Of Motion - Force And Acceleration 4 Newton’s Third Law Of Motion - Action And Reaction 5 Momentum 6 Energy 7 Gravity, Projectiles And Satellite Motion 8 Fluid Mechanics 9 Heat 10 Electricity 11 Magnetism 12 Waves And Sound 13 Light, Reflection And Color 14 Properties Of Light 15 The Atom 16 Nuclear Energy 17 Elements Of Chemistry 18 How Atoms Bond And Molecules Attract 19 How Chemicals Mix 20 How Chemicals React 21 Two Types Of Chemical Reactions 22 Organic Compounds 23 The Nutrients Of Life 24 Medicinal Chemistry 25 Rocks And Minerals 26 The Architecture Of Earth 27 Plate Tectonics - A Unifying Theory 28 Shaping Earth's Surface 29 Geologic Time - Reading The Rock Record 30 The Atmospheres, The Oceans And Their Interactions 31 Weather 32 The Solar System 33 Stars 34 Galaxies And Cosmos Appendix A On Measurement And Unit Conversion Appendix B Linear And Rotational Motion Appendix C Working With Vector Components Appendix D Exponential Growth And Doubling Time Appendix E Safety expand_more
Chapter Questions expand_more
Problem 1RQ: Which has a greater momentum, a heavy truck at rest or a moving automobile? Problem 2RQ: How can a supertanker have a huge momentum when it moves relatively slowly? Problem 3RQ: Why is it incorrect to say that impulse equals momentum? Problem 4RQ: To impart the greatest momentum to an object, what should you do in addition to exerting the largest... Problem 5RQ: For the same force, which cannon imparts the greater speed to a cannonball-a long cannon or a short... Problem 6RQ: If youre in a car with faulty brakes and you have to hit something to stop, the momentum will change... Problem 7RQ: Why is it less damaging if you fall on a mat than if you fall on a solid floor? Problem 8RQ: Why is it a good idea to extend your hand forward when catching a fast-moving baseball with your... Problem 9RQ Problem 10RQ: In karate, why is a short time for the applied force advantageous? Problem 11RQ: Which is the greater change in momentum, stopping something dead in its track or stopping it and... Problem 12RQ: Which requires the greater impulse, stopping something dead in its tracks or stopping it and then... Problem 13RQ: When can the momentum of two moving objects be canceled? Problem 14RQ: What does it mean to say that momentum (or any quantity) is conserved? Problem 15RQ: When a cannonball is fired, its momentum does change. Is momentum conserved for the cannonball? Problem 16RQ: When a cannonball is fired, the cannon recoils. Is momentum conserved for the cannon? Problem 17RQ: When a cannonball is fired, is momentum conserved for the cannon-cannonball system as a whole? (Why... Problem 18RQ: Distinguish between an elastic collision and an inelastic collision. For which type of collision is... Problem 19RQ: Railroad car A rolls at a certain speed and makes perfectly elastic collision with car B of the same... Problem 20RQ: If the equally massive cars of the previous question stick together after colliding inelastically,... Problem 1PC: Calculate the momentum of a 10kg bowling ball rolling at 3m/s. Problem 2PC: Calculate the momentum of a 50-kg carton that slides at 3m/s across an icy surface. Problem 3PC: Calculate the impulse that occurs when an average force of 10N is exerted on a cart for 5s. Problem 4PC: Calculate the impulse that occurs when the same force of 10N acts on the cart for twice the time. Problem 1TC: The balls have different masses and speeds. (a) Rank them in terms of momentum, from greatest to... Problem 2TC: Evan pushes crate starting at rest across a floor for 4seconds with a net force as shown (including... Problem 1TE: When rollerblading, why is a fall less harmful on a wooden floor than on a concrete floor that has... Problem 2TE: In terms of impulse and momentum, why do air bags in cars reduce the chances of injury in accidents? Problem 3TE Problem 4TE: In terms of impulse and momentum, why are nylon ropes (which stretch considerably under tension)... Problem 5TE: If you throw an egg against a wall, the egg will break. But if you throw it at the same speed into a... Problem 6TE: A lunar vehicle is tested on Earth at a speed of 10km/h. When it travels as fast on the Moon, is its... Problem 7TE: Which has the greater momentum when they move at the same speed-an automobile or a skateboard? Which... Problem 8TE: In answering the preceding exercise, perhaps you stated that the automobile requires more stopping... Problem 10TE: Why do 6-ounce boxing gloves hit harder than 16-ounce gloves? Problem 11TE: Which undergoes the greatest change in momentum: (1) a baseball that is caught, (2) a baseball that... Problem 12TE: In the preceding question, in which case is the greatest impulse required? Problem 13TE: If a fully loaded shopping cart and an empty one travelling at the same speed have a head-on... Problem 14TE: A fully dressed person is at rest in the middle of a pond on perfectly frictionless ice and must get... Problem 15TE: Michael throws a ball horizontally while standing on roller skates. He rolls backward with a... Problem 16TE: Two football players have a head-on collision and both stop short in their paths. If one player is... Problem 17TE: In the previous chapter, rocket propulsion was explained in terms of Newton's third law. That is,... Problem 18TE: When you are travelling in a car at highway speed, the momentum of a grasshopper is suddenly changed... Problem 19TE: If an 18-wheeler tractor-trailer and a sports car have an head-on collision, which vehicle will... Problem 20TE: Your friend says that law of momentum conservation is violated when a ball rolls down a hill and... Problem 1TS: How much impulse is needed to stop a 10kg bowling ball moving at 6m/s? Problem 2TS: A car with a mass of 1000kg moves at 20m/s. Show that the braking force needed to bring the car to a... Problem 3TS: A car carrying a 75kg test dummy crashes into a wall at 25m/s and is brought to rest in 0.1s. Show... Problem 4TS: Jane (mass 40.0kg), standing on the slippery ice, catches her leaping dog (mass 15kg) moving... Problem 5TS: A 2kg ball of putty moving to the right has a head-on inelastic collision with a 1kg putty ball... Problem 6TS: A railroad diesel engine weighs four times as much as a freight car. If the diesel engine coasts at... Problem 7TS Problem 8TS: A 1kg ostrich egg is thrown at 2m/s at a bedsheet and is brought to rest in 0.2s. Show that the... Problem 1RAT: If fast Freddy doubles his running speed, what else doubles? (a) His momentum (b) His inertia (c)... Problem 2RAT: A 1kg ball has the same speed as a 10kg ball. Compared with 1kg ball, the 10kg ball has (a)... Problem 3RAT: Two iron, balls, one twice the mass of other, are dropped from rest from the top of a one- story... Problem 4RAT: If the mass of a cart full of groceries decreases to half and its speed doubles, the momentum of the... Problem 5RAT: Your friend says that the impulse equals momentum. You disagree and say the friend is missing an... Problem 6RAT: The impulse-momentum relationship is a direct result of Newton's (a) first law. (b) second law. (c)... Problem 7RAT: Which of the following equations best illustrates the usefulness of automobile air bags? (a) a=F/m... Problem 8RAT: When you jump from an elevated position to the ground below, the force your experience when landing... Problem 9RAT: Standing on a stakeboard, you toss a ball horizontally away from you. The mass of the ball is... Problem 10RAT: A big fish swims upon and swallows a small fish at rest. After lunch, the momentum of the big fish... format_list_bulleted