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, 21.06.2019 23:30
The pressure, volume, and temperature of a mole of an ideal gas are related by the equation pv = 8.31t, where p is measured in kilopascals, v in liters, and t in kelvins. use differentials to find the approximate change in the pressure if the volume increases from 14 l to 14.6 l and the temperature decreases from 375 k to 370 k. (round the answer to two decimal places.)
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Physics, 22.06.2019 00:30
During spring semester at mit, residents of the parallel buildings of the east campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. a balloon filled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. assume that the stretching of the hose obeys hooke's law with a spring constant of 89.0 n/m. if the hose is stretched by 5.80 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? unitst 3 number-1497 the tolerance is +/-5% open show work click if you would like to show work for this question:
Answers: 2
Physics, 22.06.2019 02:50
20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.
Answers: 3
Physics, 22.06.2019 04:00
If steel is more dense that lake water, why can a boat float
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Consider two particles a and b. the angular position of particle a, with constant angular accelerati...
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