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A stick of mass M is held by supports at each end, with each support providing a force of Mg/2. Put one support a distance "a" from the left and "b" from the right. What forces do the three support now provide?
A chemist uses a mass spectrometer to determine the amounts of specific kinds of air pollution in an air sample. What is the diameter of the circular path of NO (nitrous oxide) molecules
A shopper in a supermarket pushes a cart with a force of 33 N directed at an angle of 25° below the horizontal. Find the work done by the shopper as she moves down a 44 m length aisle
A converging lens produces a real image magnified 3 times that of an object. If the object is placed at 15 cm from the lens, calculate the focal length of the converging lens
Two protons (each with rest mass M=1.67×10?27kg) are initially moving with equal speeds in opposite directions. What is the kinetic energy of each proton
what horizontal force is required to move the crate. If the coefficient of kinetic friction between a 33 kg crate and the floor is 0.26, what horizontal force is required to move the crate at a steady speed across the floor? Which is 84 I just help..
How does the intensity change as position increases? What is the position value corresponding to the highest light intensity, What is the relationship between light intensity and position
Air is streaming horizontally past a small airplanes wings such that the speed is 50m/s over the top surface and 30 m/s past the bottom surface. the plane has a mass of 300 kg and a total wing area of 5 m^2(both wings).
When an air capacitor with a capacitance of 350 nF (1 nF = 10-9F) is connected to a power supply, the energy stored in the capacitor is 2.00×10-5J, What is the dielectric constant of the slab
A stone is thrown vertically downward from a cliff 186.0-m tall. During the last half second of its flight, Find the initial speed of the stone
The lenses of a particular set of binoculars have a coating with index of refraction n = 1.38, and the glass itself has n = 1.52. what is the minimum thickness of the coating
What value does this give for the speed of sound in air. What is the speed of the ball at that point.
Two kids of masses 45 kg and 30 kg sit on the opposite sides of a seesaw. The 45 kg kid sits in the left at a distance of 54 cm from a frictionless axle. determine The force that the axle must exert
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