A bat is using echolocation in a cave that is 15.5 degrees Celsius. a. What is the speed of sound in the cave?
b. If one of the cave walls was 25m away from the bat, how long would it take for the sound’s echo to return to the bat?

To find the mass defect for uranium-238 several calculations must be made. which is the calculation that should be made first? assume atomic number for uranium-238 is 92. a. 92(1.0073) x 92(1.0087) = b. 92(1.0073) x 146(1.0087) = c. 146(1.0073) x 238(1.0087) = d. 238(1.0073) x 238(1.0087) =