Which sources would be the most useful when researching the rising cost of higher education? check all that apply.
a graph on tuition at state universities
a 2002 law that increased student aid
statistics on high school graduation rates
teacher and principal expense reports
a journal article on college administration
recall the equation relating an object's change in thermal energy to its change in temperature:
δq = mcδt
δq is the change in thermal energy.
m is the mass of the object.
c is the object's specific heat.
δt is the object's change in temperature.
m = 0.5 kg = 500g
δt = (7-0)⁰c = 7°c
online sources say the specific heat of silver is 0.240 j/g⁰c
substitute the terms in the equation with the given values and solve for δq:
δq = 500×0.240×7δq = 840 j
we only need to look at newton's 2nd law of motion:
net force = (mass) x (acceleration)
if the net force on an object is zero, then either its mass or its acceleration must be zero. if it's called an "object", then its mass isn't zero, so its acceleration is zero.