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Fed [463]
3 years ago
6

What is latent heat? A. energy released or absorbed to change the kinetic energy of a substance B. energy released or absorbed t

o change the pressure of a substance C. energy released or absorbed to change the temperature of a substance D. energy released or absorbed to change the phase of a substance
Physics
2 answers:
kkurt [141]3 years ago
6 0

the heat required to convert a solid into a liquid or vapor, or a liquid into a vapor, without change of temperature. hope this helps

Dmitrij [34]3 years ago
5 0

The correct choice is

D. energy released or absorbed to change the phase of a substance.

By definition, latent heat is the amount of heat required by an object to change from one state to another. for example : heat required for 1 g of ice at 0 °C converts to water at 0 °C is 334 J.  heat required for 1 g of water at 100 °C to vaporize is 2230 J.

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What is acceleration of a body moving with uniform velocity? (convert 50km/hr into m/s)​
gregori [183]

Answer:

answer will be 0

Explanation:

5 0
2 years ago
A race car travels 44.3 m/s around a banked (45° with the horizontal) circular (radius = 200 m) track. What is the magnitude of
djverab [1.8K]

The magnitude of the resultant force is given by the centripetal force, since the car is under a circular motion. So, we have:

F_c=ma_c

The centripetal acceleration is given by:

a_c=\frac{v^2}{r}

Where v is the linear speed and r the radius of the circular motion. Replacing this and solving:

F=m\frac{v^2}{r}\\F=80kg\frac{(44.3\frac{m}{s})^2}{200m}\\F=785N*\frac{1kN}{1000N}\\F=0.785kN

3 0
3 years ago
Find the energy u of the capacitor in terms of c and q by using the definition of capacitance and the formula for the energy in
gtnhenbr [62]

The formula for the energy in a capacitor , u in terms of q and c is q²/2c

<h3>What is the energy of a capacitor?</h3>

The energy of a capacitor u = 1/2qv where

  • q = charge on capacitor and
  • v = voltage across capacitor.

<h3>What is the capacitance of a capacitor?</h3>

Also, the capacitance of a capacitor c = q/v where

  • q = charge on capacitor and
  • v = voltage across capacitor.

So, v = q/c

<h3>The formula for energy of the capacitor in terms of q and c</h3>

Substituting v into u, we have

u = 1/2qv

= 1/2q(q/c)

= q²/2c

So, the formula for the energy in a capacitor , u in terms of q and c is q²/2c

Learn more about energy in a capacitor here:

brainly.com/question/10705986

#SPJ12

3 0
2 years ago
Explain how the information from the stimuli is communicated to the brain.
irakobra [83]

Answer:

Answer:Neurons communicate through an electrochemical process. Sensory receptors interact with stimuli such as light, sound, temperature, and pain which is transformed into a code that is carried to the brain by a chain of neurons. Then systems of neurons in the brain interpret this information.

Answer:Neurons communicate through an electrochemical process. Sensory receptors interact with stimuli such as light, sound, temperature, and pain which is transformed into a code that is carried to the brain by a chain of neurons. Then systems of neurons in the brain interpret this information.Explanation:

bro edit it yrself

6 0
3 years ago
Read 2 more answers
3 An un calibrated mercury in glass thermometer immersed in melting ice. The length of the mercury thread is 25 mm when the ther
sammy [17]

Answer:

25 mm = 0 deg C

200 mm = 100 deg C

200 - 25 = 175 = change in thread per 100 deg C

95 - 25 = 70 mm - change in thread from 0 deg C

70 / 175 * 100 = 40 deg C    final temperature at 95 mm

5 0
3 years ago
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