An engine develops 10 kW of power. How much time will it take to lift a mass of 250 kg to a height of 40m? A. 10 s
B. 5 s
C. 0.2 s
D. 0.1 s

Work = force × a. work b. energy c. distance d. momentum

What changes occur in the brain during the teenage years? 25 points, someone me out!a.) thinking becomes slower as the brain grows larger. b.) connections between neurons become stronger and faster. c.) unused neurons fuse together to form larger, better functioning neurons. d.) more neurons are developed.

Apotter's wheel moves uniformly from rest to an angular speed of 0.20 rev/s in 32.0 s. (a) find its angular acceleration in radians per second per second. rad/s2 (b) would doubling the angular acceleration during the given period have doubled final angular speed?