Find the heat given out when 0.1kg of steam at 100°C condenses and cools to water at 50°C?

Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1

Which of the following are guidelines to follow for obtaining accurate observations

When electrons are added to the outermost shell of a carbon atom, it forms--an anion that has a larger anion that has a smaller cation that has a larger cation that has a smaller radius.