A system may
a. be isolated.
b. have real boundaries.
c. have imaginary boundaries.
d. all of these
d
You might also like to view...
A scooter has wheels with a diameter of 120 mm. What is the angular speed of the wheels when the scooter is moving forward at 6.00 m/s?
A) 47.7 rpm B) 955 rpm C) 72.0 rpm D) 50.0 rpm E) 100 rpm
A concave mirror has a focal length of 20 cm. What is the position (in cm) of the object if the image is upright and is two times larger than the object?
a. 30 b. 20 c. 10 d. 40 e. 60
A Carnot engine
A. consists of zero heat flow and constant pressure processes. B. consists of only processes which do not involve heat flow. C. consists of only isothermal processes. D. absorbs heat at a single high temperature and rejects heat at a single low temperature. E. consists of constant temperature and constant volume processes.
When 50 g of a certain material at 100°C is mixed with 100 g of water at 0°C, the final temperature is 40°C. What is the specific heat of the material? The specific heat of water is 1.00 kcal/kg ? °C
A) 0.33 kcal/kg ? °C B) 0.75 kcal/kg ? °C C) 1.3 kcal/kg ? °C D) 7.5 kcal/kg ?°C