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Two bodies A and B of equal masses m lie on a smooth frictionless horizontal table. They are initially separated by a distance 2l and are connected by a thread of length 2l. The thread is pulled at its midpoint O by a constant force F at right angle to AB. Find the acceleration of A and B in the direction at right angles to the direction of F as a function of the displacement(x) of the midpoint O
A mass on a spring vibrates in simple harmonic motion at a frequency of 0.75 Hz and amplitude of 4.0 cm. what is the speed of the mass when t = 1.0 s
Elements in the sixth representative group tend to (lose one, lose two, gain one, gain two) when they participate in the ionic bonding
A stone is thrown with an initial speed of 15 m/s at an angle of 53degrees above the horizontal from the top of a 35m building. what is the speed of the rock as it hits the ground
If you move at 11 m/s toward a 2300 Hertz source that is moving toward you with a ground speed of 36 m/s, compute what frequency do you hear
A disk with a mass of 37.5kg and a radius of 38.3cm is mounted on a frictionless horizontal axle. A string is wound many times around the disk and then attached to a 56.4kg block. Find the acceleration of the block, assuming that the string does n..
A long hollow cylinder has an inside radius a, an outside radius band is uniformly charged with a uniform charge density ρ. What is the electric field as a function of radius r? Includeanswers for r b.
a particle moves in the xy plane with constant acceleration. at time zero the particle is at x 7.0 m y 7.0 m and has
In the figure a block slides along a path that is with outfriction until the block reaches the section of lengthL = 0.710 m, which begins at heighth = 1.70 m on a ramp of angleθ = 35.0 °.
A 51.0-kg woman wearing high-heeled shoes is invited into a home in which the kitchen has vinyl floor covering. If the woman balances on one heel, what pressure does she exert on the floor
A certain microwave oven produces microwaves of frequency 2450 MHz with a power of 500 W. How long must it take to heat 519 g of water, initially at room temperature, to the boiling point? Suppose that all the microwave energy is absorbed by the wate..
A motorcycle rider moving with an initial velocity of 6.8 m/s uniformly accelerates to a speed of 19.4 m/s in a distance of 30.0m. What is the acceleration? How long does it take?
When you look down into a swimming pool or lake, are youlikely to underestimate or overestimate its depth? Explain. How does the apparent depth vary with the viewing angle
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