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A mass m1 of 250 g is on a table connected to a massless pulley. The coefficient of friction between m1 and the table is 0.228. What is the maximum value of m2 before m1 starts sliding across the table?
A concave makeup mirror is designed so the virtual image it produces is 4 times the size of the object when the distance among the object and the mirror is 10 cm. What is the radius of curvature of the mirror?
Computing the probability of reflection and transmission of a particle at walls of a barrier.
At what distance from a point charge of 8.0 x 10-6 C would the electrical potential be 4.2 x 104 V
A helicopter is ascending vertically with the speed of 8 m/s. At a height of 65m above the Earth, a package is dropped from a window.
Compute the linear momentum and angulat momentum of a Frisbee of mass 0.16 kg. if it has a linear speed 0f 2.0 m/s and an angular velocity of 50 rad/s
The work function of a certain metal is 3.00 eV. What is the kinetic energy of a photoelectric in both "J" and "eV" for an incident photon of wavelength 400.0 nm
Sketch a free-body diagram of the plank. How far can a painter of mass 70.0 kg walk on the overhanging part of the plank before it tips.
Two- people- are -talking at a distance of 3.0 m from where you are and you measure the sound intensity as 1.1 Ã- 10-7 W/m2. What sound intensity does the other student measure
A narrow beam containing 2000 mono energetic photons is reduced to 1000 photons with a slab of copper 10-2 m thick. What is the total linear attenuation coefficient of the copper slab for these photons? If the thickness of the copper slab doubled, do..
What is the final temperature of the water?
Miners are trapped at the bottom of a 500m deep shaft. You are located 50m away from the top of the shaft, At what angle down from the horizontal should you drill
With what speed in miles/hr (1 m/s = 2.23 mi/hr) must an object be thrown to reach a height of 91.5 m (equivalent to one football field)
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