Physics, 05.03.2020 12:52 cesarcastellan9
Consider a projectile fired vertically in a constant gravitational field. l For the same initial velocities, compare the times required for the projectile to reach maximum height (a) for zero resistive force (b) for resistive force proportional to the instantaneous velocity of the particle.
Answers: 3
Physics, 22.06.2019 21:40
Ahair dryer is basically a duct in which a few layers of electric resistors are placed. a small fan pulls the air in and forces it through the resistors where it is heated. air enters a 1200 w hair dryer at 100 kpa and 22°c and leaves at 47°c. the cross-sectional area of the hair dryer at the exit is 60 cm2. neglecting the power consumed by the fan and the heat losses through the walls of the hair dryer, determine (a) the volume flow rate of air at the inlet and (b) the velocity of the air at the exit.
Answers: 1
Physics, 22.06.2019 23:30
Aball of mass 0.3kg is released from rest at a height of 8m.how fast is it going when it hits the ground? accleration due to gravity is g=9.8m/s
Answers: 2
Physics, 23.06.2019 00:30
What is the relationship between globular clusters and the milky way?
Answers: 1
Consider a projectile fired vertically in a constant gravitational field. l For the same initial vel...
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