pleaes help A trebuchet throws a 6 lb (26.7 N) printer straight up into the air
ID: 818160 • Letter: P
Question
pleaes help
A trebuchet throws a 6 lb (26.7 N) printer straight up into the air 12 m after it slipped out of the sling. How much work was done on the printer (in J) and how fast was it travelling (in m s) when it landed. Neglect aerodynamic drag.Air is being held at a pressure of 2 atm and a temperature of 100dergeeF. What is the density of the air assuming it is behaving as an ideal gas?After watching the movie in lecture about temperature, you are inspired to bake a cake. The cake batter has an average mass of 0.5 kg (between before and after baking) and the pyrex cake pan has a mass of 0.9 kg. The cake and the pan both stait at a room temperature of 25degreeC and the oven temperature is held at 180degreeC. If the average specific heat of the cake is 4.6 kJ/kg-K and the average specific heat of the pyrex cake pan is 0.835 kJ/kg-K, determine the amount of heat that needs to be added to bring the cake and the pan to the oven temperature (when it is fully baked). If the cake takes 20 minutes to bake, what is the average power transferred during that timel.Explanation / Answer
The molecular mass of methyl methacrylate = 100.12 mL Thus, mass of the polymer when n = 270 = 270 * 100.12 =27032.4 g OR 27.0324 kg
The horizontal axis represants the distance between the centres of the two interacting nucleii; and the vertical distance denotes the potential energy of the system of 2 charges.
The solid is most stable when the bonding energy is LOWEST.....(SORRY, couldn't circle.)
The graph would be similar to that shown in figure above.
When the solid is stretched, the distance increases and coulombic forces act in the opposite direction.
And as they come closer than their equilibrium distance, repulsive nuclear forces act on them.
THANK YOU. DO RATE.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.