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A typical scuba tank has a volume V of 10 liters. When fully charged, it contains compressed air at a pressure of 200 bars, or 2.0 x 10^7 Pa.
a) What is the uncompressed volume of the air if the ambient pressure is 1000hPa and the temperature is 293K for both the compressed and uncompressed air?
b) How much mechanical work in joules is required to fill the tank, if the process is isothermal? Hint: Recall that the pressure p will be a function of V, and consider the starting and ending volumes as your limits of integration.
c) If the compressor is able to deliver 1000W of average power, how long does it take to fill the tank?
If that angular acceleration is 1.8 rad/s^2, illustrate what is the total moment of inertia about the axis of you and the chair?
You have been instructed to calculate the amount of time it would take to drain 3/4 of a full, open tank in the shape of a octagon. Water flows from the tank at a rate (Q) that decreases with time.
A 2-m3 vessel contains air at 40oC and 236 kPa. The vessel is fed with fresh air until the air inside the vessel reaches 93oC and 1 MPa. Calculate how much air was added to the vessel
An electron starts from rest 36.5cm from a fixed point charge with Q = -0.105?C. How fast will the electron be moving when it is very far away
A point moves along the x-axis with its position, x, at time t given by x(t) = t3 - 3t2 + 2t - 1. Which of the following is the acceleration when t = 2?
A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. how fast is the student going at the bottom of the slide
A charged particle is moving horizontally westward with a velocity of 3.5 x 10^6 m/s in a region, What is the charge on the particle
A car of mass 1450 kg traveling at 26 m/s is at the foot of a hill that rises 140 m in 2.4 km. Find the average power delivered by the car's engine
The speed of sound in a different fluid is 1360 m/s. What is the bulk modulus for this fluid? The density of this fluid is 13500 kg/m3
A small 15{rm g} bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. The other end of the bar pivots about a nail driven into the table and can rotate freely, without friction.
A solid, uniform sphere of mass 2.0 kg and radius 1.7 m rolls without slipping down an inclined plane of height 6.7 m. What is the angular velocity of the sphere
A woman passes through a revolving door with a tangential speed of 1.6m/s if she Is 70 m from the center door, what is the door angular speed
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