Conceptual Integrated Science
3rd Edition
ISBN: 9780135197394
Author: Hewitt, Paul G., LYONS, Suzanne, (science Teacher), Suchocki, John, Yeh, Jennifer (jennifer Jean)
Publisher: PEARSON EDUCATION (COLLEGE)
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Textbook Question
Chapter 2, Problem 14RCQ
How much rope tension holds a 20-N bag of apples at rest?
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Chapter 2 Solutions
Conceptual Integrated Science
Ch. 2 - What were Aristotles two main classifications of...Ch. 2 - Did Aristotle believe that forces are necessary to...Ch. 2 - What two main ideas of Aristotle did Galileo...Ch. 2 - Which dominated Galileos way of extending...Ch. 2 - What is the name of the property of objects to...Ch. 2 - Which depends on gravity: weight or mass?Ch. 2 - Where would your weight be greater: on Earth or on...Ch. 2 - What are the units of measurement for weight and...Ch. 2 - One kg weighs 10 N on Earth. Would it weigh more...Ch. 2 - Which has the greater density: 1 kg of water or 10...
Ch. 2 - What is the net force on a box that is being...Ch. 2 - What two quantities are necessary to determine a...Ch. 2 - What is the name given to a force that occurs in a...Ch. 2 - How much rope tension holds a 20-N bag of apples...Ch. 2 - What is the meaning of F=0?Ch. 2 - What test tells us whether or not a moving object...Ch. 2 - One bowling ball sits at rest and another rolls at...Ch. 2 - Why is the support force on an object often called...Ch. 2 - When you weigh yourself, how does the support...Ch. 2 - How does the direction of a friction force compare...Ch. 2 - If you push on a heavy crate to the right and it...Ch. 2 - Suppose you push on a heavy crate, but not hard...Ch. 2 - What equation shows the relationship among speed,...Ch. 2 - Why do we say that velocity is a vector and speed...Ch. 2 - Does the speedometer on a vehicle show the average...Ch. 2 - How can you be at rest and also moving at 100,000...Ch. 2 - What equation shows the relationship among...Ch. 2 - What is the acceleration of an object in free fall...Ch. 2 - Why does the unit of time appear twice in the...Ch. 2 - When you toss a ball upward, by how much does its...Ch. 2 - Joints are places where bones meet. Many of them,...Ch. 2 - In what way does friction affect an earthquake?Ch. 2 - When during a standing jump is your speed zero?Ch. 2 - What is the record-breaking height for a standing...Ch. 2 - What are some anatomical features that affect an...Ch. 2 - Show that the average speed of a rabbit that runs...Ch. 2 - Calculate your average walking speed when you step...Ch. 2 - Show that the acceleration of a hamster is 5m/s2...Ch. 2 - Show that the acceleration of a car that can go...Ch. 2 - Show that the acceleration of a rock that reaches...Ch. 2 - Show that Careless Cary who slips from the rung of...Ch. 2 - Show that a basketball player who jumps vertically...Ch. 2 - The weights of Burl, Paul, and the scaffold...Ch. 2 - Rank the net forces on the block from greatest to...Ch. 2 - Different materials, A, B, C, and D, rest on a...Ch. 2 - Three pucks, A, B, and C, are sliding across ice...Ch. 2 - Find the strength of the net force on a crate that...Ch. 2 - Lucy Lightfoot stands with one foot on one...Ch. 2 - A ball is thrown straight up with an initial speed...Ch. 2 - The sketch shows a painters scaffold in mechanical...Ch. 2 - A different scaffold that weighs 400 N supports...Ch. 2 - A vehicle changes its velocity from 90km/h to a...Ch. 2 - Extend Table 2.2 which gives values from 0 to 5 s...Ch. 2 - An airplane starting from rest on a runway...Ch. 2 - Knowledge can be gained by philosophical logic and...Ch. 2 - Which of Aristotles ideas did Galileo discredit...Ch. 2 - Your friend says that a ball rolling down a flat...Ch. 2 - A ball at the end of a string makes a pendulum. If...Ch. 2 - Which has more mass, a 2-kg fluffy pillow or a...Ch. 2 - Gravitational force on the Moon is merely 1/6 that...Ch. 2 - A monkey hangs stationary at the end of a vertical...Ch. 2 - Suppose the monkey weighs 100 N and the vine...Ch. 2 - Nellie hangs suspended at rest from the ends of...Ch. 2 - Nellie Newton stands at rest on a bathroom scale....Ch. 2 - Can a basketball player halfway through a jump in...Ch. 2 - Little Hudson as shown in the opening photo of...Ch. 2 - An empty 50-N jug rests on a table. What is the...Ch. 2 - A book that weighs 15 N is at rest on a table. How...Ch. 2 - The falling speedometer of Figure 2.24 shows...Ch. 2 - In Figure 2.13, we see Marie pushing horizontally...Ch. 2 - Suppose that a free-falling object were somehow...Ch. 2 - For a free-falling object dropped from rest, what...Ch. 2 - What is the acceleration of a car that moves at a...Ch. 2 - Correct your friend who says, Japans bullet trains...Ch. 2 - An airplane flies horizontally at a constant...Ch. 2 - You toss a coin vertically upward in the air....Ch. 2 - Does a person on a diet more accurately lose mass...Ch. 2 - Gracie says acceleration is how fast you go. Alex...Ch. 2 - Your friend says that a ball in free fall...Ch. 2 - Harry the painter swings year after year from his...Ch. 2 - When a ballplayer throws a ball straight up, by...Ch. 2 - Someone standing on the edge of a cliff as in...Ch. 2 - For a freely falling object dropped from rest,...Ch. 2 - Two balls, A and B, are released simultaneously...Ch. 2 - According to Galileo, inertia is a a force like...Ch. 2 - An object with a very small mass must also have a...Ch. 2 - The equilibrium rule F=0 applies to a objects or...Ch. 2 - A man weighing 800 N stands at rest on two...Ch. 2 - If an object moves along a straight-line path at...Ch. 2 - What is the net force on a box of chocolates when...Ch. 2 - Neglecting air resistance, when you toss a rock...Ch. 2 - During each second of free fall, the speed of an...Ch. 2 - A freely falling object has a speed of 40 m/s at...Ch. 2 - The vertical height attained by a basketball...
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- A bag of cement whose weight is Fg hangs in equilibrium from three wires as shown in Figure P5.18. Two of the wires make angles 1 and 2 with the horizontal. Assuming the system is in equilibrium, show that the tension in the left-hand wire is T1=Fgcos2sin(1+2) Figure P5.18arrow_forwardA car is stuck in the mud. A tow truck pulls on the car with the arrangement shown in Figure P5.24. The tow cable is under a tension of 2 500 N and pulls downward and to the left on the pin at its upper end. The light pin is held in equilibrium by forces exerted by the two bars A and B. Each bar is a strut; that is, each is a bar whose weight is small compared to the forces it exerts and which exerts forces only through hinge pins at its ends. Each strut exerts a force directed parallel to its length. Determine the force of tension or compression in each strut. Proceed as follows. Make a guess as to which way (pushing or pulling) each force acts on the top pin. Draw a free-body diagram of the pin. Use the condition for equilibrium of the pin to translate the free-body diagram into equations. From the equations calculate the forces exerted by struts A and B. If you obtain a positive answer, you correctly guessed the direction of the force. A negative answer means that the direction should be reversed, but the absolute value correctly gives the magnitude of the force. If a strut pulls on a pin. it is in tension. If it pushes, the strut is in compression. Identify whether each strut is in tension or in compression.arrow_forwardA body hangs from a spring balance supported from the roof of an elevator. If the elevator has an upward acceleration of 4 m/s2 the balance reads 45N, what is the true weight of the body?arrow_forward
- A 22 kg loudspeaker is suspended 2.4 m below the ceiling by two 2.70 m long cables that angle outward at equal angles. What is the tension in each of the cables?arrow_forwardA rope 17 cm is suspended between two hooks, 13 cm apart and at the same level. What is the pull on each hook, if a weight of 450 N is hanging 5 cm from the right hook? I didn't understand the previous answer so i had to submit again, please explain it well. Thank youarrow_forwardA person is pushing a box across a floor. Can the frictional force on the box ever exceed its own weight? Can the frictional force ever exceed the applied force?arrow_forward
- A 314 kg elevator accelerates upward 4.7 m/s/s. What is the tension in the cable supporting it?arrow_forwardA 75 kg climber is hanging on an anchor with anchor angle equals to 60 degree, the tension on each anchor arm is: Question 4 options: 735 N 520 N 852 N 424 Narrow_forwardA 75 kg man stands on on a scale in an elevator. When the elevator begins to rise, the scale reads 100 kg. What was the acceleration in factors of g?arrow_forward
- A vendor pulls a 250 N cart filled with pop cases so that it rolls along a level floor where the force of friction is 43 N. If the worker exerts a force of 80 N @ 25⁰ on the handle of the cart, what is the acceleration of the cart?arrow_forwardA 314 kg elevator accelerates downward at 2.7 m/s/s. What is the tension in the cable supporting it?arrow_forwardYou want to hang an object from the ceiling of an elevator that has a maximum acceleration of 4.0 m/s^2 . If you hang The object with a fishing line that supports 45 N of force, what is the maximum mess the object can have if the line is not to break? Please answer in kgarrow_forward
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