Astretched cable of length 2 m has a fundamental frequency of 6,000 hz. 9.1 the frequency of 1st mode is: (rad/s) a)-37699.1 b)-6000 c)-975.67 d)-0.9887 e)-9.2
the frequency of 3rd mode is: (rad/s) a)-97687.5 b)-113097.3 c)-0.8887 d)-159050.3

In which situation has the independent variable for the experiment been changed? check all that apply. changed from counting the number of duckweed at day 0 and day 14 to counting them every day changed from testing duckweed growth in beakers to testing duckweed growth in large outdoor tanks changed from testing the effect of ph on duckweed growth to testing the effect of light levels on duckweed growth changed from testing the effect of acid ph on duckweed growth to testing the effect of basic ph on duckweed growth

Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.

Three charge are arranged as shown in the diagram. the magnitude of the net electrical force acting on the +6 uc charge, rounded to the tenths place, is .