Physics, 12.07.2019 23:30 Mattorth512345
An electric teapot has a heating element that operates at 120 v and with a current of 2.00 a. assuming the water absorbs all the energy delivered to the heating element, calculate the time interval (in s) during which the temperature of 0.891 kg of water rises from room temperature (23.0°c) to the boiling point. (the specific heat f water is 4,186 j/(kg°
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Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to:
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An electric teapot has a heating element that operates at 120 v and with a current of 2.00 a. assumi...
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