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A 10cm x 10 cm x 10cm block of steel (steel = 7900 kg/m3) is suspended from a spring scale. The scale is in Newton’s.
1) What is the scale reading if the block is in air?
2) What is the scale reading after the block has been lowered into a beaker of water and is totally submerged?
The pressure in a constant-volume gas thermometer is 0.700 atm at 100°C and 0.512 atm at 0°C. Obtain the temperature when the pressure is 0.0570 atm
A 22-L sample of air at 298K contains 0.10 grams of water vapor. What is the relative humidity of the air
A point charge of 9 µC is located at x = -3.0 cm, and a second point charge of -13 µC is located at x = +4.0 cm. Where should a third charge of +6.0 µC be placed
suppose we measure the resistance from one hand to the other and find it to be 2 kilo ohms. What is the resistivity of skin
a guitar string with a linear density of 2.0 gm is stretched between supports that are 61 cm apart. the string is
The average intensity of sunlight reaching the earth is 1390W/m2. What is the magnitude of the maximum electric force that the charge experiences
An electron has an initial, vertical velocity v0, y=.0001 c when it enters a uniform, horizontal electric field, E=0.5 x (x hat). how far will the electron be deflected
Lasers are classified according to the eye-damage danger they pose. Find the peak electric field in the laser beam
Consider a free electron gas model for noninteracting electrons ina two-dimentional infinite square well. Calculate the Fermi energyEf of the system. Let σ be the number of freeelectrons per unit area(i.e ,σ =Nq/A, where A is the area ofsquare wel..
A patient is having a magnetic resonance imaging scan (an MRI) and has neglected to remove a circular, metallic bracelet. the resistance of the bracelet is .0123 ohm. what is the area of the opening of the circular bracelet
A satellite has a mass of 6076 kg and is in a circular orbit 4.65 × 105 m above the surface of a planet. What would be the true weight of the satellite if it were at rest on the planet's surface
In a Young's double-slit experiment, two rays of monochromaticlight emerge from the slits and meet at a point on a distantscreen, as in the figure below. The point on the screen where thesetwo rays meet is the eighth-order bright fringe.
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