Pedro took a timed vocabulary test multiple times over the course of a month. Each time, he got faster at completing the test. Which memory improvement technique did Pedro use to achieve this progress? A.
priming
B.
self-referent encoding
C.
retrieval cues
D.
visual imagery

An object in mechanical equilibrium is an object

An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2

What are known as the properties of substances that describe a substance et does not change that substances?