Answer:
its on wheels and they are supposed to make it eas
Explanation:
Calorimeters can be improved by impeding the loss of heat to the surroundings. A few things can improve this:
better insulation
less surface area to the surroundings
accurate heating
better stirring/mixing mechanism
Answer:
Explanation:
To get the person Moving you have to overcome the static (means not moving) friction coefficient. U(static)
To get the person going at the same speed you have to overcome the kinetic friction coefficient. U(Kinetic)
Force to get him moving is 198 N. Force = ma = U(static)Mg
combining the 2 equations you get 198N = U(static)* 55kg *9.8m/s^2 Solve for U(static)
Same equation to keep him moving except with the dynamic force and the dynamic U
175N= U(kinetic)*55kg*9.8m/s^2 Solve (U dynamic)