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Two cords support a chandelier in the manner shown in fig 9-4 except that the upper cord makes an angle of 45 with the ceiling. If the cords can sustain a force of 1660N without breaking, what is the maximum chandelier weight that can be supported?
A planet with a radius of 6.68 ×107 m has a gravitational field of magnitude 34.2 m/s2 at the surface. What is the escape speed from the planet
a capacitor consists of two closely spaced metal conductors of large area separated by a thin insulating foil. it has a
In a supermarket, you place a 22.3 N (around 5 lb) bag of oranges on a scale, and the scale starts to oscillate at 2.7 Hz. What is the force constant (spring constant) of the spring of the scale
An electron moves to the right with a speed of 0.83c relative to the laboratory frame. Find the speed of the proton relative to the laboratory frame
What is the rate of heat flow into a system whose internal energy is increasing at the rate of 45 W, given that the system is doing work at the rate of 165 W
A pop bottle style instrument is played being open at one end closed at the other, if two successive frequencies, 350 Hz and 490 Hz, are produced, what is the fundamental frequency,
A coaxial cable has a capacitance of 3.0 pF. The inner conductor has a radius of 1.0 mm, Find the length of the cable
A car goes round a flat curve at a speed of 32 ms-1. If the radius of the curve is 200 m, find the minimum value for the coefficient of friction so that the car can go around the curve without skidding.
An electrical engineer constructs a cylindrical solenoid of area 6 cm2 and length 20 cm from 160 m of thin wire. How much energy can the inductor store
A mass attached to a spring is lifted 10cm and then let go at which point the mass bobs up and down completing 4 oscillations in 10 sec. When does the mass first reach its maximum speed and what is that speed?
A vector has an x component of -27.5 units and a y component of 35.8 units. Find the magnitude and direction of this vector
Using the liquid drop model, plot on the same graph, as a function of A, in units of MeV/nucleon (a) the bulk or volume binding energy per nucleon, (b) the negative of the surface binding energy per nucleon,
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