Physics, 15.02.2020 03:44, bluetigerbird4745
A toaster using a Nichrome heating element operates on 120 V. When it is switched on at 28 ∘С, the heating element carries an initial current of 1.36 A. A few seconds later the current reaches the steady value of 1.23 A. (a) What is the final temperature of the element? The average value of the temperature coefficient of resistivity for Nichrome over the relevant temperature range is 4.5×10−4(∘C−1). (b) What is the power dissipated in the heating element initially and when the current reaches 1.23 A?
Answers: 3
Physics, 21.06.2019 16:00, avalonr2003
Study the diagram showing the range of temperature in the earth’s layers. which temperature most likely corresponds to the asthenosphere? 1,613°c 2,521°c 3,628°c 6,217°c
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At an oceanside nuclear power plant, seawater is used as part of the cooling system. this raises the temperature of the water that is discharged back into the ocean. the amount that the water temperature is raised has a uniform distribution over the interval from 10° to 25° c. what is the standard deviation of the temperature increase?
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Physics, 22.06.2019 10:00, Calirose
Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
Answers: 2
A toaster using a Nichrome heating element operates on 120 V. When it is switched on at 28 ∘С, the h...
Mathematics, 02.04.2020 15:39