It requires a force of 100 n to stretch a spring of negligible mass by a distance of 0.1 m. if the spring instead stretches a distance of 0.25 m, how much force was applied to it? answer choices1. 200 n 2. 300 n 3. 250 n 4. 100 n 5. 175 n 6. 325 n 7. 150 n 8. 225 n 9. 275 n

What is the type of the reaction below? bacl2 + h2so4 → 2 hci + baso4 double replacement synthesis single replacement decomposition

The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.

Convection currents are caused by differences in what two things?