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3 years ago

15

Match these items and the phrases with which they are associated.

1 answer:

amid [387]3 years ago

4 0

Amount of matter in object is mass.density is mass/volume.h2o is water.drew first picture of atom is Neil's Bohr.l* w* h is volume.basic unit of matter is atom.mixture is concrete.n=1 is inner shell.upward force of a liquid on an object is buoyancy.

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Which machine can create images of atoms?

Svetradugi [14.3K]

Answer: Scanning Tunneling Microscope

Explanation:

The answer is, of course, the greatest Star Trek fan art imaginable: images literally built out of individual atoms. The images are the work of IBM scientists who created the unique artwork with a two-ton machine called the Scanning Tunneling Microscope that moves single atoms across a tiny piece of copper.

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2 years ago

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gayaneshka [121]

Explanation:

Below is an attachment containing the solution.

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3 years ago

Mars has twice the mass of Mercury and is 4 times further away from the Sun. Calculate theratio of the gravitational force from

svetoff [14.1K]

Answer:

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2 years ago

Joe the house painter stands on a uniform oak board weighing 600 N and held up by vertical ropes at each end. Joe has been dieti

Mamont248 [21]

Answer

given,

weight of the oak board = 600 N

Weight of Joe = 844 N

length of board = 4 m

Joe is standing at 1 m from left side

vertical wire is supporting at the end.

Assuming the system is in equilibrium

T₁ and T₂ be the tension at the ends of the wire

equating all the vertical force

T₁ + T₂ = 600 + 844

T₁ + T₂ = 1444...........(1)

taking moment about T₂

T₁ x 4 - 844 x 3 - 600 x 2 = 0

T₁ x 4 = 3732

T₁ = 933 N

from equation (1)

T₂ = 1444 - 933

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3 years ago

On your drive home from school, you travel 1200 m in 80 s, then 400 min 20 s.

Mama L [17]

Average speed = Total distance/total time taken

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$= \frac{16}{1}$

$= 16 \: ms {}^{ - 1}$

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3 years ago