Mrs. adams' class decides to try an experiment. she rubs a blown up balloon on sandy's head. after this, she takes the balloon and places it on the side of the wall, where it sticks, instead of falling to the ground. also, sandy's hair is now sticking almost straight out. what is the reason the balloon is now sticking to the wall? a) the balloon has a static electric charge from rubbing sandy's hair. b) the wall has been electrically charged and so attracts the balloon. c) the balloon lost its static electric charge by rubbing sandy's hair. d) the balloon would have stuck to the wall whether or not it was rubbed on sandy's hair.
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Physics, 21.06.2019 14:50, justinb0829
Use the empirical rule. the mean speed of a sample of vehicles along a stretch of highway is 70 miles per hour, with a standard deviation of 4 miles per hour. estimate the percent of vehicles whose speeds are between 66 miles per hour and 74 miles per hour. (assume the data set has a bell-shaped distribution.)
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What part of the ear is names after tools, such as the hammer and the anvil?
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The energy equivalent of the rest mass of an electron is
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Physics, 22.06.2019 18:30, dbryrob2557
In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km. h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.
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Mrs. adams' class decides to try an experiment. she rubs a blown up balloon on sandy's head. after t...
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