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A gas expands from a volume of 100L to 250L while the pressure changes according to the relation P=aV^2, where a = 2.00 N/m^8. How much work is done by the gas during the expansion?
A cube floats in water. The length of each side is 8 cm. The cube is 3/4 submerged. find the weight of the cube in air
liquid water at 453 k and 1002 kpa has an internal energy of 762 kjkg and a density of 890 kgm3.a what is the enthalpy
an electric dipole consists of charges 2e and -2e separated by 1.0 nm. it is in an electric field of strength 4.0 x 106
A charged particle of mass 1.56 g is moving at a speed of 1.39 104 m/s. the particle moves by a distance of 0.150 m in a direction perpendicular to the velocity. Find the charge on the particle
a motor starts from rest with an angular acceleration of 12. rad/s ^2 what is the motor angular speed 4.0s later? how many revolutions does it make in this period of time
In astronomy, a parsec ( pc) is dened as the distance at which an object with a size of 1 astro-nomical unit (AU) would subtend an angle of 1 arc-second. Find the conversion factor between parsecs and astronomical units.
a car traveling east at 41.9 ms passes a trooper hiding at the roadside. the driver uniformly reduces his speed to 25.0
A 3.4 k and a 2.4 k resistor are connected in parallel; this combination is connected in series with a 1.8 k resistor. If each resistor is rated at 1/2 W (maximum without overheating), what is the least voltage that can be applied across the whole..
Excluding fine and hyperfine transitions, do all transitions that end up in the ground state of hydrogen give ultraviolet light? Why? A brief explanation would be greatly appreciated
A satellite is in a circular orbit about the earth (ME = 5.98 1024 kg). The period of the satellite is 4.40 104 s. What is the speed at which the satellite travels
A block of mass m = 3.20 kg is pushed a distance d = 6.40 m along a frictionless, Determine the work done by the net force on the block
The average density of the planet Venus is 5219 kg/m3. The acceleration of gravity on its surface is 8.84 m/s2. Calculate the average radius of Venus
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