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3 years ago

What is one difference between water and ice?

2 answers:

6 0

Water atoms move more easily than ice
Ice is in a fixed crystal structure, it obviously has a lower temperature than liquid water, the state does not determine the charge, and when water freezes the crystalline structure actually makes it less dense than liquid because atoms are evenly spaced apart.

melisa1 [442]3 years ago

5 0

Answer: The correct answer is "Water atoms move more easily than ice atoms".

Explanation:

Three states of the matter are: Solid, liquid and gas.

Water is a liquid. The particles in the liquid state are loosely packed in comparison to the solid sate. They can be compressed easily. They do not have definite shape.

In the liquid state, the particles can move easily.

Ice is a solid state. The particles in the solid state are tightly packed. They cannot move. They cannot be compressed. They have fixed shape and volume.

Therefore, the difference between water and ice is "Water atoms move more easily than ice atoms".

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The gravitational force experienced by Earth due to the Moon is ________ the gravitational force experienced by the Moon due to

Vsevolod [243]

The gravitational force experienced by Earth due to the Moon is <u>equal to </u>the gravitational force experienced by the Moon due to Earth.

<u>Explanation</u>:

The force that attracts any two objects/bodies with mass towards each other is defined as gravitational force. Generally the gravitational force is attractive, as it always pulls the masses together and never pushes them apart.

The gravitational force can be calculated effectively using the following formula: F=GMmr^2

where “G” is the gravitational constant.

Though gravity has the ability to pull the masses together, it is the weakest force in the nature.

The mass of the Earth and moon varies, but still the gravitational force felt by the Earth and Moon are alike.

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3 years ago

QUESTION 1 The speed of sound in air is 340 m/s. What is the wavelength of a soundwave that has a frequency of 968 Hz?

Anton [14]

Answer:

Explanation:

340 m/s / 968 cyc/s = 0.3512396... ≈ 35.1 cm

7 0

3 years ago

Which description correctly explains the malleable property of metals? a Metals are malleable because they are shiny b Metals ar

dangina [55]

The correct answer would be D.

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3 years ago

14. The real risk-free rate of interest is 2%. Inflation is expected to be 3.5% the next 2 years and 6% during the next 3 years

Naddika [18.5K]

Answer:

3-year = 6.33%

5-year = 7%

Explanation:

Yield in security = Risk free rate + Maturity risk premium + Inflation premium + Liquidity premium + Default risk premium

Maturity risk premium is given as 0

Yield on 3-year treasury securities is 2 + [(3.5 + 3.5 + 6) / 3] + 0

= 6.33%

Yield on 5-year treasury securities is 2 + [(3.5 + 3.5 + 6 + 6 + 6) / 5] + 0

=7%

5 0

4 years ago

Your friend, Tim, is playing with his sled. He ties a rope to his sled and attaches it to Lar's snowmobile. Tim has a mass of 71

kykrilka [37]

The maximum speed of Tim is 16.95 m/s.

The given parameters:

Mass of the rope, m = 71 kg
Tension on the rope, T = 220 N
Coefficient of kinetic friction, = 0.1
Time of motion, t = 8 s

<h3>What is Newton's second law of motion?</h3>

Newton's second law of motion states that, the force applied to an object is directly proportional to the product of mass and acceleration of the object.

The net force on Tim is calculated by applying Newton's second law of motion as follows;

$T - \mu _k F_n = ma\\\\T - \mu _k F_n = m\frac{v}{t} \\\\T - \mu_k mg = m\frac{v}{t} \\\\t(\frac{T - \mu_k mg}{m} )= v\\\\8 (\frac{220 \ -\ 0.1 \times 71 \times 9.8}{71} ) =v \\\\ 16.95 \ m/s = v$

Thus, the maximum speed of Tim is 16.95 m/s.

Learn more about net horizontal force here: brainly.com/question/21684583

7 0

3 years ago