A class is performing an experiment to keep an ice cube solid as long as possible.

Calculate the efficiency of an incandescent (old-style) light bulb. The bulb is supplied with 300 J of energy, of which 27J of energy is transferred usefully. V= E= S= A= U=

The first harmonic of a string tied down at both ends has a frequency of 26 Hz. the length of the string is 0.83 mwhat is the speed of wave the string ?

The very small 0.0000000567 is written as 5.59x10-4

Write a three- to four-paragraph essay in which you evaluate the growth of executive power.