Jennifer lifts a 2.5-kg carton of cat litter from the floor to a height of 0.75 m.
Question:
(a) How much total work is done on the carton during this operation? Jennifer then pours 1.2 kg of the litter into the cat's litter box on the floor.
(b) How much work is done by gravity on the 1.2 kg of litter as it falls into the litter box?
Step by Step Answer:
a Strategy Consider the work done on the carton by Jennifer an...View the full answer
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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Origami helicopter is a simple toy that can be made by folding a piece of paper into a specific shape. When dropped from a height, the helicopter spins as it falls, due to the aerodynamic properties of its design. Origami helicopters rely on principles of aerodynamics and paper engineering to achieve flight. The helicopter blades are designed with a curved surface that creates lift when they rotate, while the weight of the paper and the design of the body create stability during flight. The angle of the blades and the speed of rotation also affect the lift and stability of the helicopter. The shape and size of the paper used in the origami design can impact the overall flight characteristics. In addition, the mass distribution of the helicopter affects its motion. The weight of the helicopter is concentrated in the bottom part of the design, which creates a stable center of gravity. This stability allows the helicopter to spin evenly and smoothly as it falls.
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