A 0.3-kg mass is connected to the top of a 50-cm vertical shaft by a 30-cm string, and to the bottom of the shaft by a 40-cm string. The shaft rotates 3.0 times per second. Find the tension in each string.

The radiation of the fire causes the saucepan to heat up. the conduction of the saucepan then to distribute the heat over the saucepan and to give heat to the water. the convection of the water distributing the heat within the water, till all the water is boiling

Answerapplying a direct current to a non magnetic material in order to create a electromagnetic field; plz check first good luck;

Answerthe force between the charges will be  f/9 (one-ninth of force f)explanationcoulomb's law relates the magnitudes  two point charges q₁ and q₂, the distance, r, between the charges, and the electrostatic force, f, between the two charges:     k represents coulomb's constant, k = 8.99×10⁹ n·m²/c².note that if we have r = 3r, then   

From my calculation, i got 3.655moles