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Suppose an airline allows a maximum of 32 kilogram for each suitcase a passenger brings along.
a. Determine the weight of a 32 kilogram suitcase? in Newton
b. Determine the weight in pounds?
A uniform meter stick is at rotational equilibrium when a mass 200 g is suspended at the 5 cm mark, a mass of 150 g is suspended at the 80 cm mark and the support is placed at the 40 cm mark. What is the mass of the meter ?
a bridge is made with segments of concrete 94 m long at the original temperature. if the linear expansion coefficient
the intensity of the sound from a certain source is measured at two points along a line from the source. the points are
A beach ball filled with air is pushed about 1 m below the surface of a swimming pool and released from rest. Which of the following statements are valid, assuming the size of the ball remains the same?
A parallel-plate capacitor in air has a plate separation of 1.49 cm and a plate area of 25.0 cm2. The plates are charged to a potential difference of 255 V and disconnected from the source.
Two spheres are mounted on identical horizontal springs and rest ona frictionless table, as in the drawing. When the spheres areuncharged, the spacing between them is dx =0.05 m, and the springs are unstrained.
a skier starts down a frictionless 33 degree slope. after a vertical drop of 30m the slope temporarily levels out and
Electrons are used in a single-slit diffraction experiment. Such an experiment works well if the slit has a width of 10 times the wavelength. what is the electron energy
A thin film with index of refraction n = 1.29 is placed in one arm of a Michelson interferometer, perpendicular to the optical path. If this causes a shift of 8.0 bright fringes of the pattern produced by light of wavelength 693nm, what is the film t..
A child slides across a floor in a pair of rubber-soled shoes. Thefriction force acting on each foot is 20.0 N. The footprint area ofeach shoe sole is 14 cm2, and the thickness of eachsole is 5 mm. Find the horizontal distance by which the upper a..
An object attached to a horizontal spring is oscillating back and forth along a frictionless surface. The maximum speed of the object is 1.25m/s.
q1. as part of a safety investigation two 1300kg cars traveling at 18ms are crashed into different barriers. find out
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