Check your answers
Given mv = Ft, where m is mass, v is speed, F is force, and t is time,
what are the dimensions of each side of the equation? Is the equation dimensionally
Given H = mCDT, where H is in joules, m in kilograms,
and DT in kelvin, what are the SI units and
dimensions of C?
Given P = kADT/l,
where A is the area, DT is difference in temperature,
is length, and k is a constant with SI units of watts per (metre·kelvin),
what are the SI units for P (rate of thermal energy flow)?
Given E = a sin (bt), where E is
energy, is length and t is time:
(a) What are the dimensions and SI units of b?
(b) What are the dimensions and SI units of a?