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ratelena [41]
3 years ago
5

The same 100-cm 3 lead block is carefully submerged in a container of mercury. One cm 3 of

Physics
1 answer:
omeli [17]3 years ago
8 0

Answer:

100cm^3

Explanation:

Using the Displacement \ Method:-

If a solid mass of a known volume is submerged in a container of a fluid, the volume of the fluid displaced is equal to the volume of the solid mass.

Hence volume of mercury displaced is 100cm^3

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A team of bicyclists are on bikes that require 512 J of work to ride. It takes 432 J of work for the bike to turn the gears. Wha
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Answer:

84.4 %

Explanation:

Mechanical efficiency = output work/input work × 100 %

output work = 432 J of work for the bike to turn the gears

input work = 512 J of work to ride.

Mechanical efficiency =  432 J/512 J × 100 %

= 0.844 × 100%

= 84.4 %

8 0
3 years ago
Recall: earth applies _____________ on Earth or equivalently
Olin [163]

Answer:

gravitational attraction

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In creating an accurate scale model of our solar system, Lana placed Earth 1 foot from the Sun. The actual distance from Earth t
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Pluto would be placed 39.74 feet far from the Sun.

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3 0
2 years ago
Answers are ONLY allowed to be ionic, polar covalent, and nonpolar covalent.
Luba_88 [7]
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8 0
2 years ago
A planet has a surface temperature of 95.0 K and an atmospheric pressure of 1.60 atm. If 4.87 L of atmosphere has a mass of 28.6
mr Goodwill [35]

Answer:

M=28.88 gm/mol

Explanation:

Given that

T= 95 K

P= 1.6 atm

V= 4.87 L

m = 28.6 g

R=0.08206L atm .mol .K

We know that gas equation for ideal gas

P V = n R T

P=Pressure , V=Volume ,n=Moles,T= Temperature ,R=gas constant

Now by putting the values

P V = n R T

1.6 x 4.87  = n x 0.08206 x 95

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We know that number of moles given as

n=\dfrac{m}{M}

M=Molar mass

n=\dfrac{m}{M}

0.99=\dfrac{28.6}{M}

M=28.88 gm/mol

3 0
3 years ago
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