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A bubble with a volume of 1.00 cm3 forms at the bottom of a lake that is 40.0 m deep. The temperature at the bottom of the lake is 20.0° C. The bubble rises to the surface where the water temperature is 31.0° C. Assume that the bubble is small enough that its temperature always matches that of its surroundings. What is the volume of the bubble just before it breaks the surface of the water? Ignore surface tension.
cm3
A piece of a wire, with the cross-sectional area of 0.5176 mm2 and 2.50 m long, has the resistance 1.28×10-1 ohms. What is the resistivity of the material of the wire
A thin metallic spherical shell of radius 0.377 m has a total charge of 5.03 × 10-6 C placed on it, What is the electric field at a distance of 0.785 m from the center of the spherical shell
An angstrom (symbol A) is a unit of length, defined as 10^-10, which is on the order of the diameter of an atom. How many angstroms are in 5.5 light-year
A 31-kg girl is bouncing on a trampoline. During a certain interval after she leaves the surface of the trampoline, How high does she rise during this interval
An inventor claims that he has designed an engine which will produce a power output of 170kW while burning a unique fuel which releases 21,000kJ of heat in a minute. He states the upper and lower temperatures of the engine are 670K and 330K, respecti..
During 0.12 s, a wheel rotates through an angle of 2.34 rad as a point on the periphery of the wheel moves with a constant speed of 2.29 m/s
During the supine bicycle exercise, analysis the shoulder, the hip, and the knee during the movement phase: What motions are occurring at the joint, What are the planes and axes of the movement
Discover the horizontal and vertical displacement
The pressure gauge on a tank registers the gauge pressure, which isthe difference between the interior and exterior pressure. When thetank is full of oxygen (O2), it contains 15.0 kg of the gas at a gauge pressure of 35.0 atm.
The emissivity of the human skin is 97.0 percent. Use 35.0 °C for the skin temperature and approximate the human body by a rectangular block with a height of 1.66 m, How much energy does our body lose in one second
The magnetic force on a straight 0.31 m segment of wire carrying a current of 4.5 A is 1.5 N. What is the magnitude of the component of the magnetic field that is perpendicular to the wire? Answer in units of T.
If the player hears the sound of the splash 3.19 s later, illustrate what was the initial speed given to the rock? Assume the speed of sound in air to be 343 m/s.
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