Billy did an investigation to learn whether bean plants will grow if they are given salt water. billy repeated his experiment three different times. each time, he used the same kind of been seeds, and he made the salt water by adding exactly 20 grams of salt to 1 liter of water. what is billy doing by using the same beans and making the salt water exactly the same way each time?
a. using consistency and precision
b. making hypotheses and inferences
c. using safety and observation
d. making predictions and conclusions
Answers: 2
Physics, 21.06.2019 19:30
Molten iron fills a mould, which has a volume of 200 cm cubed. calculate the volume when the iron cools and solidifies. molten iron has a density of 7.0g/cm cubed. in its solid state, iron has a density of 8.0g/cm cubed.
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Physics, 22.06.2019 02:40
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Aracecar driver has to hold on tightly when going around a banked curve. approximately what is the centripetal force on a 2220.0 kg car going around a circle with a diameter of 190.0 meters at 25.0 m/s?
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Physics, 22.06.2019 20:30
Ahockey player of mass 82 kg is traveling north with a velocity of 4.1 meters per second he collides with the 76 kg player traveling east at 3.4 meters per second if the two players locked together momentarily in what direction will they be going immediately after the collision how fast will they be moving
Answers: 2
Billy did an investigation to learn whether bean plants will grow if they are given salt water. bill...
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