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A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 56.11 diopters, and the lens-to-retina distance is 1.791 cm. (a) How far is the blackboard from her eyes? (b) If the writing on the blackboard is 6.44 cm high, what is the height of the image on her retina?
A jet flying at 104 m/s banks to make a horizontal turn of radius 4000 m. The mass of the jet is 1.5 x 105. Calculate the magnitude of the necessary lift force
Find the energy released in the fusion reaction 2/1H+ 3/1H? 4/2He+n. The mass of 2/1H is 2.014102 u
0.60mol of argon gas is admitted to an evacuated 70cm3 container at 10 ?C. The gas then undergoes an isochoric heating to a temperature of 500 ?C. compute the final pressure of the gas
A 425 kg bear grasping a vertical tree slides down at constant velocity. What is friction force that acts on the bear.
A cylinder with a height of 1.30 and an inside diameter of 0.110 is used to hold propane gas (molar mass 44.1 ) for use in a barbecue. It is initially filled with gas until the gauge pressure reads 1.80×106 and the temperature is 22.0. The temperatur..
A 9.05 kg projectile is fired vertically upward. Air drag decreases the mechanical energy of the projectile-Earth system by 77.5 kJ throughout the projectile's ascent. How much higher would the projectile have gone were air drag negligible.
A 2.00kg mass is pushed against a horizontal spring of force constant 28.0N/cm on a frictionless air table. find the greatest speed the mass reaches
The two stick together and move off with a speed of 4.0 m/s. Evaluate what is the mass of the second car?
a railroad car o.f mass 2.25 x 10^4 kg is traveling east 5.50 m/s and collides with a railroad car of mass 3.00 x 10^4 kg traveling west 1.50 m/s, find the velocity of the railroad cars
A tetherball leans against the smooth, frictionless post to which it is attached. what is the force the pole exerts on the ball
Calculate the de Broglie wavelength for a proton moving with a speed of 6.3 × 106 m/s. The mass of a proton is 1.67262 × 10-27 kg and Planck's constant is 6.62607 × 10-34 J · s
Expand Lagrangian to second order about equilibrium coordinates, r_0, phi = wt and find the condition for stability against small oscillations.
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