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4 years ago

EASY QUESTION!! PLEASE HELP ME! Which of these surface features are formed when the acid in groundwater reacts with limestone?

Physics

2 answers:

Stolb23 [73]4 years ago

5 0

Answer: b. sinkholes and caves

Ground water is a source or reservoir of water that forms beneath the under surface of rocks and soil, when the water from sources like precipitation, river, lakes, agricultural irrigation seeps through the pores. The accumulated water from the pores is a ground water. The upper layers of soil above the groundwater contains carbon and limestone. The water being combined with carbon becomes acidic which erodes limestone this results in formation of sinkholes and caves.

Oxana [17]4 years ago

3 0

The correct answer should be b. sinkholes and caves

When limestone reacts with acids it creates CaOH and another acid. Eventually, when all limestone is dissolved, special caves are created that are called Karsts.

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What cloud makes hail

MArishka [77]

Answer:

Cumulonimbus

Hail development. Hail is a type of strong precipitation, which is shaped in rainstorms mists (Cumulonimbus). Tempests mists comprises of beads of fluid water (at temperatures lower than 0°с, the beads can be in a thermodynamically instable supercooled condition) and ice gems

Explanation:

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3 years ago

Digital thermometers often make use of thermistors, a type of resistor with resistance that varies with temperature more than st

Nezavi [6.7K]

Answer:

The temperature coefficient of resistivity for a linear thermistor is $1.38\times10^{-3}^{\circ}C^{-1}$

Explanation:

Given that,

Initial temperature = 0.00°C

Resistance = 75.0 Ω

Final temperature = 525°C

Resistance = 275 Ω

We need to calculate the temperature coefficient of resistivity for a linear thermistor

Using formula for a linear thermistor

$R=R_{0}(1+\alpha\Delta T)$

$R=R_{0}+R_{0}\alpha\Delta T$

$\alpha=\dfrac{R-R_{0}}{R_{0}\Delta T}$

Put the value into the formula

$\alpha=\dfrac{275-75}{275\times(525-0)}$

$\alpha=1.38\times10^{-3}^{\circ}C^{-1}$

Hence, The temperature coefficient of resistivity for a linear thermistor is $1.38\times10^{-3}^{\circ}C^{-1}$

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3 years ago

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7Which of the following terms describes how glaciers move?

tatuchka [14]

Answer:

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Explanation:

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iren2701 [21]

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3 years ago

How long would it take for 1.50 mol of water at 100.0 ∘c to be converted completely into steam if heat were added at a constant

Liula [17]

The total heat that is needed by the water to get converted to steam is calculated below through the equation,

H = (Hv)(n)

where H is the heat, Hv is the heat of vaporization (40.67 kJ/mol), and n is the number of mols. Substituting the known values,

H = (40.66 kJ/mol)(1.5 mol) = 60.99 kJ

Calculating for the time,

t = (60990 J) / (24 J/s)
t = 2541.25 s

Answer: 2541.25 s or approximately 42.35 minutes

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3 years ago

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