Concept explainers
Laptop computers are equipped with accelerometers that sense when the device is dropped and then put the hard drive into a protective mode. Your computer geek friend has written a program that reads the accelerometer and calculates the laptop’s apparent weight. You’re amusing yourself with this program on a long plane flight. Your laptop weighs just 5 pounds, and for a long time that’s what the program reports. But then the “Fasten Seatbelt” light comes on as the plane encounters turbulence. For the next 12 seconds, your laptop reports rapid changes in apparent weight, as shown in Fig. 4.29.
FIGURE 4.29 The laptop’s apparent weight (Passage Problems 76-79).
The magnitude of the greatest vertical acceleration the plane undergoes during the time shown on the graph is approximately
- a. 0.5 m/s2.
- b. 1 m/s2.
- c. 5 m/s2.
- d. 10 m/s2.
Want to see the full answer?
Check out a sample textbook solutionChapter 4 Solutions
Essential University Physics: Volume 1 (3rd Edition)
Additional Science Textbook Solutions
An Introduction to Thermal Physics
University Physics Volume 2
College Physics: A Strategic Approach (3rd Edition)
Physics: Principles with Applications
Lecture- Tutorials for Introductory Astronomy
- If a man weighs 860 N on the Earth, what would he weigh on Jupiter, where the free-fall acceleration is 25.9 m/s2?arrow_forwardA 82.2-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is (a) accelerating upward with an acceleration of 1.92 m/s2, (b) moving upward at a constant speed, and (c) accelerating downward with an acceleration of 1.44 m/s2?arrow_forwardOn Jupiter, the acceleration due to gravity is 26.7 m/s^2. What is the weight of a box of potatoes of 25.2 X 10^4 on Jupiter? A) 2270N B) 6.67N C) 6730N D) 833garrow_forward
- At the surface of Jupiter’s moon Io, the acceleration due to gravity is 1.81 m/s2. If a piece of ice weighs 44.0 N at the surface of the earth, what is its mass (in kg) on the earth’s surface?arrow_forwardCompute the weight of a 75 kg space ranger (a) on Earth, (b) on Mars, where g = 3.7 m/s2, and (c) in interplanetary space, where g = 0. (d) What is the ranger’s mass at each location?arrow_forwardIf a man weighs 900N on the Earth, what would he weigh on Jupiter, where the free-fall acceleration is 25.9m/s2?arrow_forward
- As part of an attempt to combine physics and biology in the sameclass, an instructor asks students to weigh a 5.2-kg salmon byhanging it from a fish scale attached to the ceiling of an elevator.What is the apparent weight of the salmon, W>a, if the elevator (a)is at rest, (b) moves with an upward acceleration of 3.5 m>s2, or (c)moves with a downward acceleration of 2.3 m>s2?arrow_forwardA heavy chandelier with mass 125 kg is hung by chains in equilibrium from the ceiling of a concert hall as shown in Figure P5.77, with 1 = 37.0 and 2 = 64.0. Assuming the chains are massless, what are the tensions FT1, FT2, and FT3 in the three chains? FIGURE P5.77arrow_forwardThe starship Enterprise has its tractor beam locked onto some valuable debris and is trying to pull it toward the ship. A Klingon battle cruiser and a Romulan warbird are also trying to recover the item by pulling the debris with their tractor beams as shown in Figure P5.25. a. Given the following magnitudes of the tractor beam forces, find the net force experienced by the debris: FEnt = 7.59 106 N, FRom = 2.53 106 N, and FKling = 8.97 105 N. b. If the debris has a mass of 2549 kg, what is the net acceleration of the debris? FIGURE P5.25arrow_forward
- A lunar excursion module (LEM) weights 1500 kg, on earth where g =9.75 mps2. What will be its weight on the moon where gm = 1.70 mps2. On the surface of the moon, what will be the force in kg, and in newton required to accelerate the module at 9.5 mps2?arrow_forwardAn astronaut lifts off in a rocket from the surface of the moon, where g = 1.6 m/s2. What vertical acceleration should his rocket have so that his apparent weight is equal to his true weight on earth?arrow_forwardWhy is it so much harder to get a heavy table to move than it is to keep it moving? For objects at rest, the normal force is greater. μs < μk μs = μk μs = 0 μs > μkarrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning