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A 230 kilogram crate rests on a surface that is inclined above the horizontal at an angle of 19.4 degree. A horizontal force (magnitude = 516 Newton and parallel to the ground, not the incline) is needed to start the crate moving down the incline. Find coefficient of static friction between crate and incline?
A house is 53.0 ft long and 48 ft wide, and has 8.0-ft-high ceilings. What is the volume of the interior of the house in cubic meters and cubic centimeter.
A uranium atom is ionized seven times, losing seven electrons inthe process. Its resulting mass is 3.90×10−25 kgand it is given a kinetic energy of 3000 eV. If it circles ina magnetic field at a radius of 4.00 m, what is the strength of the magnetic ..
An oversimpliefied model of the hydrogen atom has the electron orbiting the nucleus's proton at a distance of approximately 5.29x10^-11 m. how much force is needed to keep the electron in a circular orbit
a 0.420-nm photon collides with a stationary electron. after the collision the electron moves forward and the photon
Two electrons in the same atom have n=3 and l = 1, How many states wouldbe possible if the exclusion principle did notapply to the atom
A 1.02 kg mass is suspended from a wire changes the length of the wire by 1.20 mm. find the stress in the wire due to the suspended mass
A balloon is filled with helium gas at 20.0 degrees Celsius at 1.0 atm (1 atm = 1.01 x 10^5 N/m^2). What is he heat flow into the gas
a pencil 15.7 cm long is released from a vertical position with the eraser end resting on a table. the eraser does not
The pilot of an aircraft wishes to fly due west in a 30.50 km/h wind blowing toward the south. The speed of the aircraft in the absence of a wind is 190km/h. What should its speed relative to the ground be.
Suppose that a high-energy particle accelerator accelerates an electron to such great speed that its relativistic mass becomes as large as the rest mass of a proton. Calculate the speed of this electron
Two shuffleboard disks of equal mass, one orange and the other yellow, are involved in an elastic, glancing collision. The yellow disk is initially at rest and is struck by the orange disk moving with a speed of 5.00 m/s.
a parallel-plate capacitor has an area of 5.40 cm2 and the plates are separated by 1.20 mm. the capacitor stores a
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