Light of 600.0 nm is incident upon a single slit. The resulting diffraction pattern isobserved on a screen that is 0.50 m from the slit. The distance between the first and thirdminima of the diffraction pattern is 0.80 mm. Find the width of the slit.

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

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