Physics, 07.10.2019 01:30, nourmaali

Which plot correctly shows the velocity of the two balls as a function of time?

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Physics, 21.06.2019 17:00, itzia00

Why is alternating current more effective at long–distance travel than direct current? a. the power lines are made out of conductors. b. transformers increase or decrease voltage as needed. c. the ac generator is more efficient. d. ac has lower voltage than dc.

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Physics, 21.06.2019 22:00, oliviaschmitt0

Which type of microscope would allow the viewer to see ribosomes inside a cell?

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Physics, 22.06.2019 05:00, bbygrl70

Aperson stands on a platform, initially at rest, that can rotate freely without friction. the moment of inertia of the person plus the platform is ip. the person holds a spinning bicycle wheel with its axis horizontal. the wheel has moment of inertia iw and angular velocity ωw. take the ωw direction counterclockwise when viewed from above. part a what will be the angular velocity ωp of the platform if the person moves the axis of the wheel so that it points vertically upward?

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Physics, 22.06.2019 14:30, gabriellam20

A10nc charge sits at a point in space where the magnitude of the electric field is 1500 n/c. what will the magnitude of the field be if the 10 nc charge is replaced by a 20 nc charge? assume the system is big enough to consider the charges as small test charges.