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Question: A 1-m3 rigid tank initially contains air whose density is 1.18 kg/m3. The tank is connected to a high-pressure supply line through a valve. The valve is opened, and air is allowed to enter the tank until the density in the tank rises to 7.20 kg/m3. Determine the mass of air that has entered the tank.
A 4 kg block rest against one end of a horizontal spring which is compressed by 20 cm. Calculate the constant of kinetic friction Mk between the block and the table
determine the frequency of small oscillations of the system when the weight is given a small vertical displacement and released.
Find out the friction force on the box
a ball is thrown vertically upward with a speed of 14.0 ms.a how high does it rise?b how long does it take to reach its
The length of a beam increases by 1.26mm when its temperature is raised from 29.87oC to 71.49 oC. What is the length of the beam at the initial temperature
for sound waves in air with frequency 1000 hz a displacement amplitude of 1.210-8 m produces a pressure amplitude of
If Tarzans arms are capable of exerting a force of 1500 Newton on the rope, find what is the maximum speed he can tolerate at the lowest point of his swing
In a hydraulic lift, the maximum gauge pressure is 18.5 atm. If the diameter of the output line is 18.7 cm, what is the heaviest vehicle that can be lifted
three equal point charges each with charge 1.75mc are placed at the vertices of an equilateral triangle whose sides
A spring k=600N/m is placed in a vertical position with its lower end supported by a horizontal surface. What is the kinetic energy of the block at the instant it has fallen 0.50m (compressing the spring0.10m)
Consider an electron in hydrogen having total energy - 0.850 eV. What are the possible values of its orbital angular momentum
A straight 10-cm wire bent at its midpoint so as to form an angle of 90 degrees carries a current of 10 A. What is the magnitude of the magnetic force on this wire
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