Physics, 31.07.2019 22:20, hebibova2016
The temperature at a point (x, y) on a flat metal plate is given by t(x, y) = 54/(7 + x2 + y2), where t is measured in °c and x, y in meters. find the rate of change of temperature with respect to distance at the point (1, 3) in the x-direction and the y-direction.
Answers: 1
Physics, 21.06.2019 19:10, shazanah95
Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.
Answers: 1
Physics, 22.06.2019 16:00, ggdvj9gggsc
Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.
Answers: 2
The temperature at a point (x, y) on a flat metal plate is given by t(x, y) = 54/(7 + x2 + y2), wher...
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