3 years ago

Where are the two lenses located in a compound microscope use in most classrooms today?

1 answer:

8 0

They stay with the microscope as it moves around to different schools, and they are always located in the same classroom where the rest of the microscope is being used.

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Why do slippery fluids such as oil reduce sliding friction

Gwar [14]

fluid friction occurs when an object moves through a liquid or gas. the force needed to overcome fluid friction is usually less then that needed to overcome sliding friction. the fluid keeps the surface from making direct contact and thus reducing friction.

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3 years ago

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Paul [167]

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3 years ago

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10) If the mass 2m, the left mass

Romashka-Z-Leto [24]

Answer:

F = $\frac{-Gm_{1}m_{2} }{r^{2} }$ .

Explanation:

Gravitational force between two objects of masses $m_{1}, m_{2}$ kept at a distance r is given by the formula

F = $\frac{-Gm_{1}m_{2} }{r^{2} }$

Here , $m_{1}$ = 2m

$m_{2}$ = $\frac{m}{2}$

Thus , F = $\frac{-G.2m.\frac{m}{2} }{r^{2} }$

F = $\frac{-Gm_{1}m_{2} }{r^{2} }$ .

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3 years ago

Why are atoms of lithium, sodium, and potassium almost never found alone together in nature?

nikdorinn [45]

atoms of lithium, sodium, and potassium almost never found alone in nature because they have only one electron in their outer most shell which makes them very reactive and they react with other atoms thats why. I hope this can help you

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3 years ago

A player kicks a football from ground level with an initial velocity of 27.0 30.0 above the horizontal Find the ball's maximum h

stepladder [879]

Answer:

Given

initial velocity (u) =27.030

Force of gravidity g) =9.8

Rtc maximum height Hmix =?

$sln \\ \ hmix = u {}^{2} \div 2g \\ 27.030 \div 2 \times 9 \\ \\ hmix = 38.025m$

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2 years ago