Part 1. Specific heat, heat transfer, and calorimetry. 1. Specific Heat: You have 10.0 kg of water and 10.0 kg of liquid Hg. Given that Cwater = 4180
J/kg°C and Cmercury = 140 J/kg°C, how much more energy do you need to put in to water to increase its
temperature by 1.00 °C?

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.

Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?

Avector of magnitude 2 cannot be added to a vector of magnitude 3 so that the magnitude of the resultant is a. zero b. 1 c. 3 d. 5 e. 7