andrewjarrah05
30.03.2021 •
Physics
A 25.0 g sample of mercury is cooled from 50 °C to 10 °C. If the specific heat of mercury is 0.14 J/g x °C, calculate the amount of heat energy lost in the process.
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Ответ:
Explanation:
Given data
Radius R=6.80 m
Velocity v=18 km/h =5 m/s
First we need to set up for Force in vertical (y) and horizontal (x)
∑Fy=0=TCosα-W
∑Fx=ma=Fc=TSinα
Solve Vertical force equation for T,substituting mg for W
Substitute expression for Fc and T into horizontal force and simplify it we get