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3 years ago

A sample of a substance has a high density, yet a low particle motion. This sample must be a

Physics

2 answers:

Gnoma [55]3 years ago

7 0

Answer: The correct answer is option (D).

Explanation:

In solid state there is strong inter molecular forces of attraction between particles therefore the motion of particles are completely restricted where as in liquids and gases, the inter molecular forces are comparatively weak and thus the motion of particles are not restricted.

A sample of a substance has a high density which means that volume of occupied by the substance is less .This is because volume is inversely proportional to the density of a substance. High density means that large numbers of particles are present in a unit volume of that substance and that is state of substance is a solid state.

Hence, the correct answer is option (D).

avanturin [10]3 years ago

3 0

The most possible answer is letter B) Liquid.
If we are going to base the answer to the motion of particles, liquid is the best answer since solid's particle cannot move for they are tightly packed while the particles of gas and plasma (ionized gas) are free and move at high speeds.

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The vertical height of an ocean wave from a crest to a trough is 10 meters. What is the amplitude of the ocean wave?

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A student forms the following hypothesis if people wear bright colors, they will be happier. What is/are the problems with this

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3 years ago

What must be the length of a simple pendulum if its oscillation frequency is to be equal to that of an air-track glider of mass

Anvisha [2.4K]

Answer:

the length of the simple pendulum is 0.25 m.

Explanation:

Given;

mass of the air-track glider, m = 0.25 kg

spring constant, k = 9.75 N/m

let the length of the simple pendulum = L

let the frequency of the air-track glider which is equal to frequency of simple pendulum = F

The oscillation frequency of air-track glider is calculated as;

$F = \frac{1}{2\pi } \sqrt{\frac{k}{m} } \\\\F = \frac{1}{2\pi } \sqrt{\frac{9.75}{0.25} } \\\\F = 0.994 \ Hz$

The frequency of the simple pendulum is given as;

$F = \frac{1}{2\pi} \sqrt{\frac{g}{l} } \\\\2\pi(F) = \sqrt{\frac{g}{l} } \\\\2\pi (0.994) = \sqrt{\frac{9.8}{l} } \\\\6.2455 = \sqrt{\frac{9.8}{l} } \\\\(6.2455)2 = \frac{9.8}{l} \\\\39.006 = \frac{9.8}{l} \\\\l = \frac{9.8}{39.006} \\\\l = 0.25 \ m$

Thus, the length of the simple pendulum is 0.25 m.

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3 years ago

How long do molecules of groundwater stay in the ground?

Brilliant_brown [7]

CORRECT ANSWER:

d. Anywhere from days to thousands of years.

STEP-BY-STEP EXPLANATION:

The whole question from book is

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A balloon filled with helium gas at 20°C occupies 4.91 L at 1.00 atm. The balloon is immersed in liquid nitrogen at -196°C, whil

mrs_skeptik [129]

Answer:

0.25 L

Explanation:

$P_1$ = Initial pressure = 1 atm

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$V_2$ = Final volume

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The pressure experienced by the balloon is 0.25 L

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3 years ago