Physics, 30.05.2020 19:01, joseaguilaroux4zh
A physics professor in a lab releases a 1.44-m long simple pendulum (with a 590 g mass attached) at an angle of 15° to the vertical. Assuming that the pendulum undergoes simple harmonic motion: (a) what is the frequency of the pendulum’s oscillations? (b) What is the pendulum bob’s speed at the lowest point of its motion?
Answers: 2
Physics, 22.06.2019 14:40, sherlinejules1
You throw a small rock straight up from the edge of a highway bridge that crosses a river. the rock passes you on its way down, 7.00 s after it was thrown. what is the speed of the rock just before it reaches the water 28.0 m below the point where the rock left your hand? ignore air resistance.
Answers: 2
Physics, 22.06.2019 17:00, davinedmcneal
If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.
Answers: 1
Physics, 22.06.2019 21:00, thanitoast84
Ais a machine that makes work easier when a single force is applied. a simple machine b compound machine c endangered machine d complex machine
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Physics, 22.06.2019 21:40, iancuteodora30
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
A physics professor in a lab releases a 1.44-m long simple pendulum (with a 590 g mass attached) at...
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