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Sucrose is allowed to diffuse along a 10 centimeter length of tubing filled with water. The tube is 6.5 cm2 in cross-sectional area. The diffusion coefficient is equal to 5.0 x 10-10 m2/s, and 8.0 x 10-14 kilogram is transported along the tube in 12 seconds. Find the difference in the concentration levels of sucrose at the two ends of the tube?
___________kg/m3
Steel train rails are laid in 12.2m -long segments placed end to end. The rails are laid on a winter day when their temperature is -2.00 oC. what is the stress in them on a summer day when their temperature is 33.0 oC
Suppose there are two transformers between your house and the high-voltage transmission line that distributes the power. In addition, assume that your house is the only one using electric power. At a substation the primary coil of a step-down tran..
A string trimmer is a tool for cutting grass and weeds; it utilizes a length of nylon "string" that rotates about an axis perpendicular to one end of the string. what is the length of the rotating string
At high noon, the Sun delivers 1.10-kW to each square meter of a blacktop road. If the hot asphalt loses energy only by radiation, what is its equilibrium temperature?
Two narrow parallel slits illuminated by yellow sodium light (λ= 589 nanometer) are found to produce fringes with a separation of 0.5 centimeter on a screen 2.25 meter away. Determine what is the distance between the slits
During exercise, a person may give off 182 kcal of heat in 30 min by evaporation of water from the skin. How much water has been lost
Assume that you hear a clap of thunder 16.9 s after seeing the associated lightning stroke. The speed of sound waves in air is 343 m/s and the speed of light is 3.00 X 10 8 m/s. How far are you from the lightning stroke?
The m1 = 1.4 kg block at rest on a horizontal frictionless surface is connected to an unstretched spring (k = 200 N/m) whose other end is fixed. (See Fig. 10-36.) The m2 = 2.5 kg block whose speed is 4.0 m/s collides with the 1.4 kg block. Assume tha..
What is the minimum photon energy needed to create an electron - positron pair when a photon collides (a) with a free electron at rest and (b) with a free proton at rest?
A coil has an inductance of 0.45 H and a resistance of 42 ohms. The coil is connected to a 5.6 V ideal battery. At what rate is the energy being dissipated
The vector A s 3.50cm long and is directed into this page, In the right-handed coordinate system, where the +x-axis directed to the right, the +y-axis toward the top of the page
Water flows straight down from an open faucet. The cross-sectional area of the faucet is 2.00 x10-4 m2, and the speed of the water is 0.87m/s as it leaves the faucet.
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