(! match the sentence to the number down below! i'll give brainlist and points! ) a. a common penny will on molten lead because the penny has a lower density than the lead b. the scientist testified in the court trial and gave a explanation that the explosion would have been avoided if the employer had followed normal safety procedures. c. the scientist wanted to measure 100.0 ml of water accurately, so he used a instead of a beaker. d. one of water is about 20 drops from an eye dropper. e. once in a while, pranksters will try and get water banned as too dangerous to allow people to use by calling it dihydrogen monoxide with the formula f. a common metric unit for density is g. the pirate’s boat sank because so much gold was loaded on it that the force was less than the gravitational force on the boat. h. if we know the of sand we can calculate the amount of mass that will fit in the 2.0 cubic meter bed of a pickup truck and decide if it is safe to get a full load of the sand. i. the modern electronic balance could be with the empty weighing dish on it, so that it would directly measure “net mass.” j. is a common solvent which mixes so perfectly with water that when 50 ml of it is added to 50 ml of water it ends up only occupying 96 ml of volume. 1. density 2. buoyancy 3. plausible 4. tared 5. graduated cylinder 6. ethanol 7. ml 8. h2o 9. g/ml 10. float
Answers: 1
Physics, 22.06.2019 07:00
Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j
Answers: 1
Physics, 22.06.2019 12:30
Hydrogen atoms are excited by a laser to the =4n=4 state and then allowed to emit. what is the maximum number of distinct emission spectral lines (lines of different wavelengths) that can be observed from this system? 8 6 2 7 4 5 1 3 calculate the wavelength of the 4⟶14⟶1 transition. =λ=
Answers: 2
Physics, 23.06.2019 15:30
Acertain sound is recorded by a microphone. the same microphone then detects a second sound, which is identical to the first one except that the amplitude of the pressure fluctuations is larger. in addition to the larger amplitude, what distinguishes the second sound from the first one? it is perceived as higher in pitch. it is perceived as louder. it has a higher frequency. it has a longer wavelength.
Answers: 2
(! match the sentence to the number down below! i'll give brainlist and points! ) a. a common pe...
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