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A 75.0-kg person is riding in a car moving at 20.0 m/s when the car runs into a bridge abutment (a) calculate the average force on the person if he is stopped by a padded dashboard that compresses an average of 1.00 cm (b) Calculate the average force on the person if he is stopped by an airbag that compresses an average of 15.0 cm.
Explain, using thermodynamically sound principles, what each of the following temperatures represents: actual temperature, virtual temperature, dewpoint temperature,
if a car traveled at an average speed of 80 km per hour for 20 minutes and then slowed to an average speed of 50 lm per
Two satellites, A and B, are in different circular orbits about the earth. The orbital speed of satellite A is thirty-six times that of satellite B
The figure below shows a resistor of resistance R =6.33 Ω connected to an ideal battery of emf = 14.0 V by means of two copper wires. Each wire has length23.3 cm and radius 4.10 mm. In dealing with such circuits in thischapter, we generally neglec..
What effect does temperature have upon surface tension? Is it better to wash clothes in hot water or cold water?
What must be the distance in meters between point charge q1 = 19.7 µC and point charge q2 = -36.7 µC for the electrostatic force between them to have a magnitude of 4.37 N
Name the scientist who receives the major credit for the development of the periodic table. In what year was his work published? What characteristics of the elements are periodic? There are at least five.
Two football players are initially 2m apart. At the same instant they accelerate towards each other, Draw a picture. Define your coordinate system
An amount of an ideal monatomic gas has an initial pressure of 210 kPa, an initial volume of 1.2x10-3 m3, at an initial temperature of 350 K. The gas now undergoes three processes:
A group of particles is traveling in a magnetic field of unknown magnitude and direction. What is the direction of the magnetic field
A wheel of R=.20 m is mounted on a frictionless, horizontal axis,as shown in the figure. A light cord wrapped around the wheelsupports a m=0.50 kg box. What is the moment of inertia I of the wheel
Light of wavelength 600 nm in air is incident on the surface of a block of plastic at an angle of 62.7 degrees to the normal and is bent so that it makes a 48.1 degree angle by the normal in the plastic. Discover the speed and the wavelength of light..
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