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Two litres of mixture in which there is 2/5 of water and the rest spirit is mixed with five litres of mixture in which there is 1/3 of water and the rest spirit. What is the ratio of water and spirit in the new mixture?
A container of cross-sectional area 102 cm2 contains liquid of density 1.95 g/cm3 to a height of 6.60 cm above a small hole of area 1.00 cm2 in the side. Find the speed of the fluid as it leaves the hole
A conical pendulum is formed by attaching a 0.400kg ball to a 1.00m -long string, then allowing the mass to move in a horizontal circle of radius 40.0cm, What is the ball's angular velocity, in rpm
n undamped 1.47-kg horizontal spring oscillator has a spring constant of 25.1 N/m, What is the oscillator\'s total mechanical energy as it passes through a position that is 0.651 of the amplitude
A 1500 kg elevator starts from rest and moves upward with constant acceleration for 4.0 s until it reaches its operating speed of 2.0 m/s. Calculate the power required by the elevator motor while the elevator is operating at its operating speed
An unstable particle with a mass equal to 3.34*10-27 kg is initially at rest. Find the masses of the fragments
which is basically a diskshaped grindstone of mass 1.2 kg and radius 7.30 cm which operates at 700 rev/min. When the power is shut off, you time the grindstone and find out it takes 39.0 s for it to stop rotating.
Two small insulating spheres with radius 9×10-2 are separated by a large center-to-center distance of 0.52. One sphere is negatively charged.
A small airplane needs to reach a speed of 300 km/h to take off. What is the minimum length of a runway in m that can allow the plane to takeoff if it accelerates at the rate of 4.0 m/s2
If one shines a laser with wavelength ? = 650 nm through a single slit of width a = 0.04 mm, How far apart are the minima
A box is dropped from a spacecraft moving horizontally at 27.0 m/s at a distance of 155 m above the surface of a moon. The rate of freefall acceleration on this airless moon is 2.79 m/s2.
The motion of a very massive object is hardly affected by what would seem to be a substantial force. Consider a supertanker, with a mass of 2.7×10^8 kg. find what will be the magnitude of its acceleration
This question requires four answers. A15 Ω resistor, a 0.30 μF capacitor and a16.0 mH inductor are in a series, What is the rms voltage across the inductor
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