Physics, 06.12.2019 21:31 catherine51
Auniform stick 1.0 m long with a total mass of 270 g is pivoted at its center. a 3.0 g bullet is shot through the stick midway between the pivot and one end. the bullet approaches at 250 m/s and leaves at 140 m/s. with what angular speed is the stick spinning after the collision
Answers: 3
Physics, 22.06.2019 19:20
Two kilograms of air within a piston–cylinder assembly executes a carnot power cycle with maximum and minimum temperatures of 800 k and 300 k, respectively. the heat transfer to the air during the isothermal expansion is 60 kj. at the end of the isothermal expansion the volume is 0.4 m3. assume the ideal gas model for the air. determine the thermal efficiency, the volume at the beginning of the isothermal expansion, in m3, and the work during the adiabatic expansion, in kj.
Answers: 1
Physics, 22.06.2019 23:20
Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction
Answers: 3
Physics, 23.06.2019 00:50
Mark creates a graphic organizer to review his notes aboutelectrical force.which labels belong in the regions marked x and y?
Answers: 1
Auniform stick 1.0 m long with a total mass of 270 g is pivoted at its center. a 3.0 g bullet is sho...
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