What is the frist thing you should do when making an individual decision

Find an expression for the electric field e⃗ at the center of the semicircle. hint: a small piece of arc length δs spans a small angle δθ=δs /r, where r is the radius. express your answer in terms of the variables q, l, unit vectors i^, j^, and appropriate constants.

Wich of yhe following is true a mass drpendent on gravity and weight is dependent on gravity

In an exothermic chemical reaction the energy gained by the surroundings must be the energy lost by the reaction