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A child having a mass of 18 kg is seated halfway between the ends of a small, 16-kg table as shown. The coefficient of static friction is 0.20 between the ends of the table and the floor. If a second child pushes on edge B of the table top at a point directly opposite to the first child with a force P lying in a vertical plane parallel to the ends of the table and having a magnitude of 66 N, determine the range of values of ? for which the table will
a) Tip,
b) Slide.
Two beams of planar wavefront, 633-nm coherent light, whose directions are 120o apart, strike a photographic emulsion of index 1.6. Sketch the arrangement, showing the orientation of the planes of constructive interference within the emulsion.
Two charged objects experience a mutual repulsive force of 0.86N. If the charge of one of the objects is reduced by half and the distance separating the objects istripled, what is the new force? (Enter the magnitude of the force.)
an uncharged 1.0-muf capacitor is connected in series with a 23-komega resistor an ideal 7.0-v battery and an open
It is common to see birds of prey rising upward on thermals. The paths they take may be spiral-like. You can model the spiral motion as uniform circular motion combined with a constant upward velocity. Assume a bird completes a circle of radius 6...
A 22.0 m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder of aluminum 3.50 cm in diameter. How far to the side does the top of the pole flex
The ideal gas law relates the temperature, pressure and volume of an ideal gas. How many molecules of gas are inside the balloon
a block is at rest on the incline shown in the figure. the coefficients of static and kinetic friction are mus 0.75
A circular pipe has a diameter of 3 cm and then narrows to 2 cm. When water (density= 1000kg/m^3) flows during at a certain rate, the pressure is 24.0 kPa in the smaller section and 32.0 kPa in the larger section. There is no height change. What is t..
An object is placed 5 cm in front of a concave lens of focal length 7 cm. Find the image location by drawing a ray tracing diagram to scale
two long vertical wires are separated by 2m. the one on the left carries a current of 8 a upward and the other carries
At a rock concert a dB meter registers 115 dB at a distance of 1.50 m from the stage, how far from the stage would you need to be to hear the concert at 90 dB
A 10-kg batch of a food product has a moisture content of 175% dry basis. Calculate the amount of water to be removed from the product to reduce the moisture content to 15% wet basis
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