Search over 10,000 free study notes

Resonance is where a system is forced to oscillate at a frequency close or at its natural frequency. The result of the forced oscillation produces a maximum energy transfer and, therefore, a large increa...

What do we know (IN) dv/dt = o.4π(OUT) dv/dt = 0.2π(h)^0.5 Initial height of water in vessel is 2.25m Diameter = 4m a) Show that at time t minutes after that tap has been opened, the height h m...

First, multiply both sides of the equation by 'i' to remove the fraction: i(h-36) = 3h +18 Then, expand the bracket by multiplying 'i' by each of the terms inside (first h then '-36'). Make sure to keep t...

First, work out what number is a common factor of both terms - in other words what number 'goes into' both 27 and 3? 3 is a factor of both so put 3 outside the bracket. = 3( __ - __) Now work out what goe...

Both "ser" and "estar" mean "to be". However they both have different purposes in Spanish. "Ser" is the verb used to to denote a permanent state of being, whilst &q...