Aball that has a mass of 0.25 kg spins in a circle at the end of a 1.6 m rope. the ball moves at a tangential speed of 12.2 m/s. what is the centripetal force acting on the ball? a 1.9 n b 23 n c 59 n d 93 n

Aresearcher plans to conduct a test of hypotheses at the 1% significance level. she designs her study to have a power of 0.90 at a particular alternative value of the parameter of interest. the probability that the researcher will commit a type ii error for the particular alternative value of the parameter at which she computed the power is: a. 0.90. b. 0.01. c. 0.10. d. equal to 1

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

If the speed of a particle triples ,by what factor does its kinetic energy increase?