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2 years ago

Which of the following best describes a property of water?

Physics

2 answers:

Snezhnost [94]2 years ago

5 0

Answer: C. Remaining liquid over a wide temperature range

Explanation: Water has a high specific heat i.e it requires a large amount of heat to raise the temperature of 1 gram of water through $1^0C$ . This is because the molecules of water are associated through strong hydrogen bonds.

It is also an universal solvent as it can dissolve most of the substances in it due to its high dielectric constant.

The freezing point of water is $0^0C$ , that is liquid water converts to solid form at $0^0C$ and the boiling point of water is $100^0C$ , that is liquid water converts to gaseous form at $100^0C$ . Thus it can remain in liquid form over the temperature range of $0^0C$ to $100^0C.$

Water has a high surface tension as the molecules of water are held together by strong hydrogen bonds.

stiks02 [169]2 years ago

3 0

Correct answer is option C.

Remaining liquid over a wide temperature range

Other options are invalid.

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5. A bus starting from rest accelerates in a straight line at a constant rate of 3m/s2 for 8s. Calculate the distance travelled

mojhsa [17]

Answer:

d = 96 meters

Explanation:

a = acceleration

t = time

d = distance

$d = \frac{1}{2} \times a \times {t}^{2}$

$d = \frac{1}{2} \times 3 \times {8}^{2}$

$d = 96$

8 0

2 years ago

Six members of a synchronized swim team wear earplugs to protect themselves against water pressure at depths, but they can still

tangare [24]

Answer:

The sound travels differently in different medium according the density of the medium.

Explanation:

The sound travels faster in dense medium and can be heard by the vibration of the bone present in the ear. The ear plugs reduce the sound intensity in both medium water and on land (air).

In air the sound is not heard properly due to the earplugs that stops the as the vibration are not able to produce as sound is not able to reach to middle ear, but Navy researchers have discovered that sound under water is heard by the bone present behind the ear, vibrations mastoid.

3 0

3 years ago

What were the two different alleles for height in the pea plants that Mendel studied?

natta225 [31]

You might want to go to this website, http://www.indiana.edu/~p1013447/dictionary/mendel.htm
Welcome, And i hope this helps :P

8 0

2 years ago

Which one of the statements below is true about mechanical waves?

TEA [102]

They require a medium to travel through

5 0

2 years ago

A bungee jumper starts with 1000 J in their GPE store. After they jump they fall and are brought to a stop with the bungee cord.

pochemuha

Answer:

energy is equal to 1000 J

Explanation:

When the jumper is in the tent, he has a given height, this height gives him a gravitational potential energy, which forms his initial mechanical energy of 1000 J. After jumping, this energy is converted into elastic energy of the rope plus a remainder of potential energy gravitational, it does not reach the ground, but as the friction is negligible the total mechanical energy is conserved, therefore its energy is equal to 1000 J

This is a case of energy transformation, but the total value of mechanical energy does not change

8 0

2 years ago