Physics, 31.07.2019 09:30, marinsaul2424
One student did an experiment with sand, rocks, pebbles, and water. the steps of the experiment are shown below. cut out the bottom of a two liter plastic bottle. remove the cap of the bottle and fix a loosely woven cotton cloth on the mouth of the bottle with the of a tape. fix the cap tightly on the cotton cloth. put a cup of sand into the bottle through the opening cut out at the bottom. pour water slowly into the bottle. open the cap and observe how the water flows out of the bottle through the cotton cloth. empty the bottle and replace the cap. repeat the experiment by putting a layer of rocks, pebbles and sand in the bottle. what does the student's experiment most likely demonstrate? select one: a. groundwater reacts with sand, rocks, and pebbles b. groundwater corrodes sand, rocks, and pebbles to form caverns c. groundwater causes layers of sand to collapse and form sinkholes d. groundwater moves at different rates through different layers of the earth
Answers: 1
Physics, 22.06.2019 00:30, tdyson3p6xvtu
Asap time is ! best answer gets compose at least one well-developed paragraph on the following: define the term concurrent powers, and give an example of a concurrent power of government.
Answers: 1
Physics, 22.06.2019 03:10, joho38
Athin plate moves between two parallel, horizontal, stationary flat surfaces at a constant velocity of v = 7.5 m/s. the two stationary surfaces are spaced 4 cm apart, and the medium between them is filled with oil whose viscosity is 0.9 n·s/m2. the part of the plate immersed in oil at any given time is 2 m long and 0.5 m wide. if the plate moves through the mid-plane between the surfaces, determine the force required to maintain this motion. what would your response be if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top surface (h1)? if the plate moves through the mid-plane between the surfaces, the force required to maintain the motion will be n. if the plate was 1 cm from the bottom surface (h2) and 3 cm from the top (h1) surface, the force required to maintain the motion would be n.
Answers: 2
One student did an experiment with sand, rocks, pebbles, and water. the steps of the experiment are...
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