Consider two closed systems a and b. system a contains 3000kj of thermal energy at 20°c ,whereas system b contains 200kj of thermal energy at 50° c. now the system are brought into contact with each other . which one states the direction of any hear transfer between the two systems and how long does it takes?

Ascientist wants to find the radius in meters of his hemispherical dome he found that the surface area of the entire sphere containing the dome is 682 square meters which equation could he use to find the domes radius

Case # 51173878 weighs 814 pounds; case # 51173981 weighs 803 pounds; case # 51174058 weighs 817 pounds; case 51174178 weighs 815 pounds; case # 51174248 weighs 817 pounds; case # 51174495 weighs 781 pounds; case # 51174577 weighs 828 pounds. what are the case #'s of the two cases that weigh the same amount?

If you are in grade when should you start studying for exams