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##E/L=b/a## ##Effort-load-fulcrum## ##a: distance between effort and fulcrum## ##b:distance between load and fulcrum## ##E:Effort## ##L:Load## ##E*a=L*b## ##E/L=b/a##

is the force acting on an unit area It can be given as a formula it’s . ##F## = Net force acting on the body . […]

My weight would decrease by 3 times than when I stand on the Earth’s surface. The force of gravity##(F)## of earth is given by## (GMm)/r^2 ## […]

##170m=66929 inch## ##1 inch=254 cm=00254 m## ##170 m=17/(00254)## ##170m=66929 inch##

14.91290861 miles 1 mile = 1.609344 kilometers (google) ##24 km((1 mi) / 1.609344km)##

The answer is: ##33.4kJ## To answer to this question it is sufficient to use this equation: ##Q=Lm## where ##Q## is the amount of heat needed to […]

The definition of the index of refraction is ##n = c / v## where ##c## is the speed of light in a vacuum (##3 xx 10^ […]

##0.0335## ##(km)/h## We need to convert ##75## ##(mi)/h## into ##(km)/h## Cancel the hours in the denominator ##rarr75 (mi)/h*(1h)/(3600s)## (as ##1## hour is ##3600s##) ##rarr75 (mi)/cancelh*cancel(1h)/(3600s)## ##rarr75 […]

The lenght of the railroad at 40C is: ##30014.4m## The formula that we need is the thermal dilatation formula: ##l_2=l_1(1+lambdaDeltaT)## where ##l_1## is the initial lenght […]