At time t = 0 a small ball is projected from point A with a velocity of 264 ft/sec at the angle 50°. Neglect atmospheric resistance and determine the two times t₁ and t2 when the velocity of the ball makes an angle of 28° with the horizontal x-axis. A t₁ = u= 264 ft/sec Answers: t₂ = 50° i i 3.510 9.114 sec sec

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Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.