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The chlorophyll-a molecule, C55H72MgN4O5, is important in photosynthesis.
(a) Determine its molecular mass (in atomic mass units).
(b) What is the mass (in grams) of 3.00 moles of chlorophyll-a molecules?
q1. an object 0.600 cm tall is placed 16.5 cm to the left of the vertex of a concave spherical curvature of 22.0 cm.a.
a horizontal beam of electrons initially moving at 3.3 107 ms is deflected vertically by the vertical electric field
A hypodermic syringe contains a medicine with the density of water. The barrel of the syringe has a cross-sectional area A = 2.60 10-5 m2, and the needle has a cross-sectional area a = 1.00 10-8 m2. In the absence of a force on the plunger, the pr..
Determine the magnitude of the total initial momentum of the two-block system. Find , the magnitude of the final velocity of the two-block system. What is the change in the system's kinetic energy due to the collision?.
A spaceship of mass 2.20 × 106 kilogram is cruising at a speed of 4.70 × 106 m/s when the antimatter reactor fails, blowing the ship into three pieces. Evaluate the speed of the third piece
a small sphere that carries a charge q is whirled in a circle at the end of an insulating string. the angular frequency
One end of a metal rod is in contact with a thermal reservoir at 691 K, and the other end is in contact with a thermal reservoir at 105 K. what is the change in entropy of the rod
Determine the volume of the piece of gold.
a proton is moving parallel to a uniform electric field. the electric field accelerates the proton and increases its
An object with mass 5.0 kg originally moves with 4 m/s in the S direction on a horizontal surface and suddenly breaks into two pieces. What is the magnitude of the velocity of the second piece
A charged belt, 60 cm wide,travels at 40 m/s between asource of charge and a sphere. The belt carries charge into thesphere at a rate corresponding to 100 µA. Compute the surface charge densityon the belt.
For a demonstration, a professor uses a razor blade to cut a thin slit in a piece of aluminum foil, What is the width of the slit
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