Physics
If the system is in static equilibrium, there is no motion for any of the items. So the tension of the string holding the pulley is Σmass*acceleration due to gravity =(0.5kg+2.0kg+0kg(string)+mass of pulley)*g =(2.5kg+mass of pulley)*g
chemistry 101
How many grams of NaCl are dissolved in 250 grams of normal saline solution
economics
Every year Christmas tree vendors bring tens of thousands of trees from the forests of New England to New York City and Boston. During the last two years, the market has been very competitive; as a result, price has fallen by 10 percent. If the price elasticity of demand was &...
Physics
Two objects attract each other gravitationally with a force of 2.1×10−10 N when they are 0.21 M apart. Their total mass is 4.00 KG Find their individual masses. .
Physics
A light ray strikes a flat, L = 3.7 cm thick block of glass of refractive index 1.47 in the attached figure, at an angle of È = 340 with the normal. Calculate the lateral shift of the light ray, d.
Physics
A light ray strikes a flat, L = 3.7 cm thick block of glass of refractive index 1.47 in the attached figure, at an angle of È = 340 with the normal. Calculate the lateral shift of the light ray, d.
Physics
A small fish is inside a spherical bowl filled with water (n=1.33). The bowl has a diameter of 30cm and the fish is at a distance of 5cm from the surface that separates water and air (ignore the effects of the glass of the bowl). The image of the fish is ... a. Real (forms in ...
Physics
oh k. got it. thanks
Physics
A converging thin lens made out of crown glass (n=1.52) has a focal length f=1.0m An identical lens (same radius for the spherical surfaces), made out of a high-index plastic with n=1.70 will be ... A. Converging with a focal length smaller than 1.0 m B. Diverging with a foca...
Physics
sorry, another question. what would f be in the len makers equation?
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