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a) In a 36 s interval, 511 hailstones strike a glass window of area 1.476 m^2...

a)

In a 36 s interval, 511 hailstones strike a glass window of area 1.476 m^2 at an angle 36 degrees to the window surface. Each hailstone has a mass of 8g and speed of 13.1 m/s. If the collisions are elastic, find the average force on the window. Answer in units of N.

b)

Find the pressure on the window. Answer in units of N/m^2 .

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