Physics, 15.11.2019 20:31 ellisc7044
Consider two particles a and b. the angular position of particle a, with constant angular acceleration, depends on time according to \theta_{\rm a}(t)=\theta_0+\omega_0t+\frac{_1}{ ^2}\alpha t^2. at time t=t_1, particle b, which also undergoes constant angular acceleration, has twice the angular acceleration, half the angular velocity, and the same angular position that particle a had at time t=0.which of the following equations describes the angular position of particle b? a) theta_{\rm b}(t)=\theta_0+2\omega_0t+\frac{1}{ 4}\alpha t^2b) theta_{\rm b}(t)=\theta_0+\frac{1}{2}\omega_0t +\alpha t^2c) theta_{\rm b}(t)=\theta_0+2\omega_0(t-t_1) +\frac{1}{4}\alpha (t-t_1)^2d) theta_{\rm b}(t)=\theta_0+\frac{1}{2}\omega_0( t-t_1)+\alpha (t-t_1)^2e) theta_{\rm b}(t)=\theta_0+2\omega_0(t+t_1) +\frac{1}{4}\alpha (t+t_1)^2f) theta_{\rm b}(t)=\theta_0+\frac{1}{2}\omega_0( t+t_1)+\alpha (t+t_1)^2
Answers: 3
Physics, 22.06.2019 10:00, yasminlockser6
Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.
Answers: 2
Physics, 22.06.2019 18:30, Jasten
Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.
Answers: 1
Physics, 22.06.2019 19:30, QueenNerdy889
Refrigerant-134a flows through a carnot heat pump cycle at 0.5 kg/s. it is known that the maximum absolute temperature in the cycle is 1.1 times the minimum absolute temperature, and the net power input to the cycle is 2.5 kw. if the refrigerant changes from a saturated vapor to a saturated liquid during the heat rejection process, determine the maximum magnitude of the enthalpy of vaporization for this process in kj/kg (with 3 significant figures).
Answers: 3
Consider two particles a and b. the angular position of particle a, with constant angular accelerati...
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