Recent content by Moon_tm
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Power to drive rollers in a machine
Hi, I've attempted to solve the first part (see file Position 1) in mathcad, but have no idea if it's correct, at least for the first part, as I am assuming, that the steps will be the same for the rollers in the remaining positions. So if I can manage to calculate the first one correctly, I...- Moon_tm
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- Drive Machine Power
- Replies: 2
- Forum: Engineering and Comp Sci Homework Help
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AC, 2 appliances in parallel, one of them is disconnected
Can you explain why it is not correct? As I said, I'm kind of lost. P/V = I R=V/I R=V^2/P But doesn't this assume, that all of the 230Vrms gets to the cooker and the bulb? Or the rating is independent of the actual Voltage, that gets to them? Formatting got copied from the sub-title...- Moon_tm
- Post #3
- Forum: Introductory Physics Homework Help
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AC, 2 appliances in parallel, one of them is disconnected
Homework Statement A light bulb (L1) and a cooker (R1) are connected to the same wire. The wire consists of two copper conductors with a cross section of 1.5 mm2 and a length of 22.3 m. When SW1 is closed the heating element of the cooker will be turned on. It has a power dissipation of 2300 W...- Moon_tm
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- Ac Parallel
- Replies: 3
- Forum: Introductory Physics Homework Help
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Water and Ice mixture, Find original temperature of water
values from google or specific tables cwater= 4180 J/KgK Lfice= 334E3 J/Kg Working? Like substituting in the numbers? I mentioned the results I got after having substituted. One was negative, close to -1 and the other was 5 after swapping the final and initial in Can you please focus on the...- Moon_tm
- Post #4
- Forum: Introductory Physics Homework Help
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Water and Ice mixture, Find original temperature of water
Homework Statement An 8 cm3 ice cube (temperature = 0.00 °C) is dropped into a glass with 3 dL juice which results in the ice cube being melted. By doing this, the juice drops to a temperature of 3.00 °C. What was the temperature of the juice before the ice cube was added? (Treat juice as water...- Moon_tm
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- Ice Mixture Temperature Water
- Replies: 4
- Forum: Introductory Physics Homework Help