Physics, 01.03.2021 14:10 nforrestall
I need help with my physics, they’re just tick boxes
The magnet was placed on the top pan balance before the current was switched on. The balance then was zeroed. After the current was switched on the balance read 161g. The arrow shows the direction of the current in the circuit
Which direction was the force on the balance?
Choose one
1. In the same direction as the arrow (in the image)
2.down into the balance
3.up from the balance
4from the front of the balance to the back of the balance
Due to Newton‘s third law of motion, the force on the wire is in the opposite direction to the force on the balance which direction was the magnetic field. Choose one
1.in the sand direction as the arrow in the image
2.down into the balance
3. Up from the balance
4. From the front to the back of the balance
Answers: 1
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Asmall, positively charged ball is moved close to a large, positively charged ball. which describes how the small ball likely responds when it is released? it will move toward the large ball because like charges repel. it will move toward the large ball because like charges attract. it will move away from the large ball because like charges repel. it will move away from the large ball because like charges attract.
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Consider the growth of a 20-nm-diameter silicon nanowire onto a silicon wafer. the temperature of the wafer surface is maintained at 2400 k. assume the thermal conductivity of the silicon nanowire is 20 wm-1k-1 and all its surfaces including the tip are subjected to convection heat transfer with the coefficient h = 1×105 wm-2k-1 and t∞ = 8000 k. when the nanowire grows to l = 300 nm, what is the temperature of the nanowire tip (t (x =
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A10-kg isto a of 10 m at aa0.9 kg/m.30 kg of ,at aas10-m .. ( 9.8 m/s2 g.)
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I need help with my physics, they’re just tick boxes
The magnet was placed on the top pan balance b...
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