PHYSICS:PRINCIPLES W/ APPLICATIONS
7th Edition
ISBN: 2818440037979
Author: GIANCOLI
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 1Q
Why does a child in a wagon seem to fall backward when you give the wagon a sharp pull forward?
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Chapter 4 Solutions
PHYSICS:PRINCIPLES W/ APPLICATIONS
Ch. 4 - A 150-kg football player collides head-on with a...Ch. 4 - A line by the poet T. S. Eliot (from Murder in the...Ch. 4 - Why does a child in a wagon seem to fall backward...Ch. 4 - A box rests on the (frictionless) bed of a truck....Ch. 4 - Prob. 3QCh. 4 - If the acceleration of an object is zero, are no...Ch. 4 - Prob. 5QCh. 4 - Prob. 6QCh. 4 - Prob. 7QCh. 4 - (a) Why do you push down harder on the pedals of a...
Ch. 4 - A stone hangs by a fine thread from the ceiling,...Ch. 4 - Prob. 10QCh. 4 - Prob. 11QCh. 4 - Prob. 12QCh. 4 - Prob. 13QCh. 4 - Prob. 14QCh. 4 - Prob. 15QCh. 4 - Prob. 16QCh. 4 - Prob. 17QCh. 4 - Prob. 18QCh. 4 - Prob. 19QCh. 4 - A block is given a brief push so that it slides up...Ch. 4 - Prob. 21QCh. 4 - Prob. 22QCh. 4 - A truck is traveling horizontally to the right...Ch. 4 - You are trying to push your stalled car. Although...Ch. 4 - Matt, in the foreground of Fig. 4-39, is able to...Ch. 4 - A bear sling, Fig. 4-40, is used in some national...Ch. 4 - What causes the boat in Fig. 4-41 to move forward?...Ch. 4 - A person stands on a scale in an elevator. His...Ch. 4 - When a skier skis down a hill, the normal force...Ch. 4 - A golf ball is hit with a golf club. While the...Ch. 4 - Suppose an object is accelerated by a force of 100...Ch. 4 - You are pushing a heavy box across a rough floor....Ch. 4 - Prob. 11MCQCh. 4 - The normal force on an extreme skier descending a...Ch. 4 - To pull an old stump out of the ground, you and a...Ch. 4 - What force is needed to accelerate a sled (mass =...Ch. 4 - Prob. 2PCh. 4 - How much tension must a rope withstand if it is...Ch. 4 - According to a simplified model of a mammalian...Ch. 4 - Superman must stop a 120-km/h train in 150 m to...Ch. 4 - A person has a reasonable chance of surviving an...Ch. 4 - What average force is required to stop a 950-kg...Ch. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - Prob. 10PCh. 4 - Prob. 11PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - A box weighing 77.0 N rests on a table. A rope...Ch. 4 - Figure 4-46
Problem 21.
21. (I) Draw the free-body...Ch. 4 - Prob. 22PCh. 4 - Arlene is to walk across a “high wire" strung...Ch. 4 - A window washer pulls herself upward using the...Ch. 4 - One 3.2-kg paint bucket is hanging by a massless...Ch. 4 - Prob. 26PCh. 4 - A train locomotive is pulling two cars of the same...Ch. 4 - Prob. 28PCh. 4 - At the instant a race began, a 65-kg sprinter...Ch. 4 - A 27-kg chandelier hangs from a ceiling on a...Ch. 4 - Prob. 31PCh. 4 - Figure 4-53 [shows a block (mass mA) on a smooth...Ch. 4 - Prob. 33PCh. 4 - Prob. 34PCh. 4 - 35. (Ill) Suppose the pulley in Fig. 4-55 is...Ch. 4 - Prob. 36PCh. 4 - A force of 35.0 N is required to start a 6.0-kg...Ch. 4 - Prob. 38PCh. 4 - Prob. 39PCh. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - A box is given a push so that it slides across the...Ch. 4 - Prob. 43PCh. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - 46. (II) For the system of Fig. 4-32 (Example...Ch. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - A person pushes a 14.0-kg lawn mower at constant...Ch. 4 - Prob. 51PCh. 4 - (a) A box sits at rest on a rough 33° inclined...Ch. 4 - Prob. 53PCh. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - A 25.0-kg box is released on a 27° incline and...Ch. 4 - Prob. 57PCh. 4 - Prob. 58PCh. 4 - The crate shown in Fig. 4-60 lies on a plane...Ch. 4 - A crate is given an initial speed of 3.0 m/s up...Ch. 4 - Prob. 61PCh. 4 - Prob. 62PCh. 4 - The coefficient of kinetic friction for a 22-kg...Ch. 4 - On an icy day, you worry about parking your car in...Ch. 4 - Two masses mA= 2.0 kg and mB= 5.0 kg are on...Ch. 4 - Prob. 66PCh. 4 - Prob. 67PCh. 4 - A 2.0-kg purse is dropped from the top of the...Ch. 4 - Prob. 69GPCh. 4 - 70. A 75.0-kg person stands on a scale in an...Ch. 4 - Prob. 71GPCh. 4 - Prob. 72GPCh. 4 - Prob. 73GPCh. 4 - Prob. 74GPCh. 4 - Prob. 75GPCh. 4 - (a) What minimum force F is needed to lift the...Ch. 4 - Prob. 77GPCh. 4 - A jet aircraft is accelerating at 3.8 m/s2 as it...Ch. 4 - Prob. 79GPCh. 4 - Prob. 80GPCh. 4 - Prob. 81GPCh. 4 - Prob. 82GPCh. 4 - Prob. 83GPCh. 4 - Prob. 84GPCh. 4 - Prob. 85GPCh. 4 - Prob. 86GPCh. 4 - Prob. 87GPCh. 4 - Prob. 88GPCh. 4 - Prob. 89GPCh. 4 - Prob. 90GPCh. 4 - A 72-kg water skier is being accelerated by a ski...Ch. 4 - Prob. 92GPCh. 4 - Prob. 93GPCh. 4 - Prob. 94GPCh. 4 - Prob. 95GPCh. 4 - Prob. 96GPCh. 4 - Prob. 97GP
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- 6. Is the true pendulum an example of SHM? Explain.arrow_forwardIn the circuit shown below & = 66.0 V, R5 = 4.00, R3 = 2.00, R₂ = 2.20 ₪, I5 = 11.41 A, I₁ = 10.17 A, and i̟ = 6.88 A. Find the current through R2 and R3, and the values of the resistors R₁ and R. (Due to the nature of this problem, do not use rounded intermediate values-including answers submitted in WebAssign-in your calculations.) 12 = 8.12 8.12 13 R₁₁ = RA = A Based on the known variables, which two junctions should you consider to find the current I3? A 6.9965 61.5123 Ω Which loop will give you an equation with just R4 as the unknown? Did you follow the sign convention for the potential difference across each element in the loop? R₁ www 11 R₂ www R4 www 14 8 15 www R5 www R3arrow_forwardA car traveling at 42 km/h hits a bridge abutment. A passenger in the car moves forward a distance of 53 cm (with respect to the road) while being brought to rest by an inflated air bag. What magnitude of force (assumed constant) acts on the passenger's upper torso, which has a mass of 43 kg? Number i Unitsarrow_forward
- Three resistors R₁ = 88.1 Q, R2 = 19.9 £2, R3 = 70.00, and two batteries & ₁ = 40.0 V, and ε2 = 353 V are connected as shown in the diagram below. R₁ www E₁ E2 R₂ ww ww R3 (a) What current flows through R₁, R2, and R3? 11 = 0.454 Did you choose directions for each of the three currents? Given that you have three unknowns to solve for, how many equations, at the least, will you need? A 12 = 1.759 Did you choose directions for each of the three currents? Given that you have three unknowns to solve for, how many equations, at the least, will you need? A 13 2.213 = Did you choose directions for each of the three currents? Given that you have three unknowns to solve for, how many equations, at the least, will you need? A (b) What is the absolute value of the potential difference across R1, R2, and R3? |AVR1 = 40.0 How is the potential difference related to the current and the resistance? V |AVR2 = 35.0 How is the potential difference related to the current and the resistance? V |AVR3 =…arrow_forwardIn the attached image is the circuit for what the net resistance of the circuit connected to the battery? Each resistance in the circuit is equal to 14.00 kΩ. Thanks.arrow_forwardDetermine the equivalent capacitance for the group of capacitors in the drawing. Assume that all capacitors be the same where C = 24.0 µF. Thank you.arrow_forward
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