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A tank having a volume of 0.11 m3 contains helium gas at 170 atm. How many balloons can the tank completely fill if each filled balloon is a sphere 36 cm in diameter at an absolute pressure of 1.2 atm?
A 4.70 kg object on a horizontal frictionless surface is attached to a spring with spring constant 920 N/m. obtain the initial potential energy of the block-spring system
The two stars in a binary star system have masses 2.2x10^30kg and 5.9x10^30kg. They are separated by 1.8x10^12m. What is the speed of the lightest star
A 19-kg chandelier is suspended from the ceiling by four vertical steel wires. Each wire has an unloaded length of 4 m and a diameter of 7 mm
During spin-dry cycle of a washing machine, the motor slows from 90 rad/s to 30 rad/s while the turning the drum through an angle of 180 radians. What is the magnitude of the angular acceleration of the motor.
Calculate the buoyant force that would be exerted on a wood object that is 26g and has a volume of 31.6cm3 and a density of .82 g/mL if you held it under water. How much force must you exert
A resistor with 790? is connected to the plates of a charged capacitor with capacitance 4.26?F, What is the electrical power dissipated in the resistor just after the connection is made
What is the energy stored in the inductor after the switch has been closed for a very long time? Take V = 15 V, R = 1400 ? and L = 20 mH
A skin diver is 1.8 m below the surface of a lake. A bird flies overhead 7.6 m above the surface of the lake. how far above the diver does it appear to be
A spacecraft has a nonrelativistic (or classical) momentum whose magnitude is 7.0 1012 kg · m/s. Find the relativistic momentum of the spacecraft
An object moves in a circular path at a constant speed. What is the direction of the net force acting on the object?
Two very small spheres are initially neutral and separated by a distance of 0.66 m. What is the magnitude of the electrostatic force that acts on each sphere
A thin uniform rod has a length of 0.500m and is rotating in a circle on a frictionless table. The axis of rotation is perpendicular to the length of the rod at one end, What is the mass of the bug
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