Recent content by smarties

Homework Statement What force is needed to make a 1200kg vehicle accelerate from rest to 108km/hr in 100m Homework Equations aceleration = Velocity/time Force = Mass x Acceleration Time = Distance/Velocity The Attempt at a Solution M = 1200kg D = 100m V = 108 km/hr /...

What about if take the 21.8kg convert it to grams 21800g minus the total mass of ice 15778g Will that mean 21800-15778 = 6022g is the mass of the Fossil ? Surely it can't be that simple? Have I missed a step ?

Homework Statement A rectangular block of ice containing a fossil measures 426mm x 264mm x 153mm with a total mass of 21.8kg Density of ice = 0.917g/cm3 Density of Fossil = 3.64g/cm3 What percentage of the block's mass is the fossil? Homework Equations Density = Mass/Volume...

I was just doing some further reading on the formula would that be; ERROR/DISTANCE or TIME x 100 ?? Longest Distance = +4m divided by 800m multiply by 100 = +0.5% Longest Time = +2s divided by 192s multiply by 100 = +1.041% or +1.05% Have I got my calculations correct ? Rounding to 1...

I calculated these figures... Largest average speed 804/190 = 4.23m/s Smallest average speed 796/194 = 4.10m/s Now what formula should I use to calculate the percentage errors?

1. A person travels 800m +/-4m in a time of 3 minutes 12 seconds +/-2sec I have to work out the largest and smallest possible values for the speed along with the percentage error for the speed and distance travelled. 2. Homework Equations = Distance/Time = Speed 3. The Attempt at a...

Hi everyone I am about to start my first year of engineering and would like to know if civil engineering is harder than electrical engineering in regards to the maths and physics work load? Which specialty offers better job prospects for the future? Thanks in advance