Calculate the heat added to 3kg of water if the temperature increases from 30 C to 60 C. A. 376.74 J

B. 376.74 kJ

C. 753.48 J

D. 753.48 kJ

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.

What is the role of lenses in microscopy?

The frequency of the fundamental of the guitar string is 320 hz. at what speed v do waves move along that string?