What is the final temperature of 0.5 kg of water initially at 18 °c after 65 kj of
heat is added
a. 31 °c
b. 42 °c
c. 49 °c
d. 27 °c

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers total displacement?