Physics, 18.03.2020 01:51 lololol270
What is the force F⃗ on the 1.0 nC charge in the middle of (Figure 1) due to the four other charges? Give your answer in component form. (The figure shows two -2.0 NC charges on the left corners and two 2nC charges on the right. The middle charge is surrounded by the four charges connected in a 1.0x1.0cm square.)
Answers: 2
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Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?
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Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.
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The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).
Answers: 3
What is the force F⃗ on the 1.0 nC charge in the middle of (Figure 1) due to the four other charges?...
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