We feel cool when we sit near the fan, this is because (1) fan gives cool air. (2) fan cools surrounding air. (3) air vapourises the sweat on our body. (4) we feel cool when air touches the body.

We feel cool when we sit near the fan, this is because (1) fan gives cool air. (2) fan cools surrounding air. (3) air vapourises the sweat on our body. (4) we feel cool when air touches the body.
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Answer :

air vapourises the sweat on our body.
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We feel cool when we sit near the fan, this is because – (1) fan gives cool air. (2) an cools surrounding air. (3) air vapourises the sweat on our body. (4) we feel cool when air touches the body.

Description : We feel cool when we sit near the fan, this is because – (1) fan gives cool air. (2) an cools surrounding air. (3) air vapourises the sweat on our body. (4) we feel cool when air touches the body.

Last Answer : (3) air vapourises the sweat on our body. Explanation: We feel comfortable sitting under a fan when we are perspiring because a fan increases the rate of evaporation of sweat (or moisture) from our body and makes us feel cool and comfortable.

During hot weather, the fan produces a feeling of comfort. This is because – (1) fan supplies cool air (2) fan cools the air (3) our perspiration evaporates rapidly (4) conductivity of air increases

Description : During hot weather, the fan produces a feeling of comfort. This is because – (1) fan supplies cool air (2) fan cools the air (3) our perspiration evaporates rapidly (4) conductivity of air increases

Last Answer : (3) our perspiration evaporates rapidly Explanation: Fans make the air more comfortable for two reasons: (1) by moving the air, they blow away body heat and evaporate sweat, cooling the body, and (2) they also mix the cooler air near the floor with the warmer air by people's faces.

During hot weather, the fan produces a feeling of comfort. This is because (1) fan supplies cool air (2) fan cools the air (3) our perspiration eva-porates rapidly (4) conductivity of air increases

Description : During hot weather, the fan produces a feeling of comfort. This is because (1) fan supplies cool air (2) fan cools the air (3) our perspiration eva-porates rapidly (4) conductivity of air increases 

Last Answer : our perspiration eva-porates rapidly

During summer, we feel comfortable under a fan because it (a) throws cool air on us (b) sets the air in motion, thereby increasing the evaporation of sweat (c) produces convection currents (d) produces air which carries heat away from the body

Description : During summer, we feel comfortable under a fan because it (a) throws cool air on us (b) sets the air in motion, thereby increasing the evaporation of sweat (c) produces convection currents (d) produces air which carries heat away from the body

Last Answer : Ans:(b)

A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. (A) 10 (B) > 10 (C) < 10 (D) Either (B) or (C), depends on the mass of the body

Description : A body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70° C to 65° C in __________ minutes. (A) 10 (B) > 10 (C) < 10 (D) Either (B) or (C), depends on the mass of the body

Last Answer : (B) > 10

In a cup, tea cools from 90°C to 80°C in exactly one minute. It will cool from 70°C to 60°C in (a) less than one minute (b) exactly one minute (c) nearly one minute (d) more than one minute

Description : In a cup, tea cools from 90°C to 80°C in exactly one minute. It will cool from 70°C to 60°C in (a) less than one minute (b) exactly one minute (c) nearly one minute (d) more than one minute

Last Answer : Ans:(d)

The basic underlying principle of using a mist propagation system is that it: a. Keeps the propagation medium uniformly moist and supplies moisture to the base of the cuttings b. Keeps the plant material cool c. Cools the propagation medium to promote root formation and development d. Increases humidity around the cutting and reduces transpiration

Description : The basic underlying principle of using a mist propagation system is that it: a. Keeps the propagation medium uniformly moist and supplies moisture to the base of the cuttings b. ... medium to promote root formation and development d. Increases humidity around the cutting and reduces transpiration

Last Answer : Increases humidity around the cutting and reduces transpiration

Explain ,why an organic liquid vapourises at a temperature below its boiling point in steam distillation?

Description : Explain ,why an organic liquid vapourises at a temperature below its boiling point in steam distillation?

Last Answer : Because for boiling to occur vapour pressure of organic compound & steam should be equal to atmospheric pressure. As vapour pressure of water is higher than organic liquid. Therefore, organic liquid vaporizes at a temperature below its boiling point in steam distillation .

Woollens keep us warm in winter because they (a) produce more warmth (b) are good absorbers of heat (c) do not allow our body heat to escape (d) do not allow cool air to enter

Description : Woollens keep us warm in winter because they (a) produce more warmth (b) are good absorbers of heat (c) do not allow our body heat to escape (d) do not allow cool air to enter

Last Answer : Ans:(c)

“Cool sweat on the face, especially around the mouth and nose” is a feature of Options: 1) Chamomilla 2) Rheum 3) Opium 4) Natrum mur.

Description : “Cool sweat on the face, especially around the mouth and nose” is a feature of Options: 1) Chamomilla 2) Rheum 3) Opium 4) Natrum mur.

Last Answer : Correct Answer: 2) Rheum

Spirit in contact with body gives cool sensation because it is – (1) liquid (2) transparent (3) highly volatile (4) a good conductor

Description : Spirit in contact with body gives cool sensation because it is – (1) liquid (2) transparent (3) highly volatile (4) a good conductor

Last Answer : (3) highly volatile Explanation: Spirit is very volatile. So when it is exposed, it evaporates rapidly to the air if released into the environment, producing a cool effect.

Spirit in contact with body gives cool sensation because it is : (1) liquid (2) transparent (3) highly volatile (4) a good conductor

Description : Spirit in contact with body gives cool sensation because it is : (1) liquid (2) transparent (3) highly volatile (4) a good conductor

Last Answer : highly volatile

Where can one find a portable fan (about 10" or so) that blows either warm or cool air?

Description : Where can one find a portable fan (about 10" or so) that blows either warm or cool air?

Last Answer : Why does it need to blow hot air also if you need it to cool?

When it's hotter than hades, and you don't have air (or your fan doesn't keep you cool), how do you sleep?

Description : When it's hotter than hades, and you don't have air (or your fan doesn't keep you cool), how do you sleep?

Last Answer : answer:Pretty much just like you described. We caved a few years ago and bought the window unit for the bedroom when the thermometer in our room started reading 109+. With the humidity around here, it was ... sheets with a mist of cool water or stick an ice pack in my pillow in the past, though.

We are three brothers, running behind each other. Always running round our mother: one after the other, yet no matter how fast we run, we never touches each other. What are we? -Riddles

Description : We are three brothers, running behind each other. Always running round our mother: one after the other, yet no matter how fast we run, we never touches each other. What are we? -Riddles

Last Answer : Fan blades.

What kind of change is it when water cools to ice ?

Description : What kind of change is it when water cools to ice ?

Last Answer : When water cools, it turns into ice. This is a physical change.

What happens to a liquid, when the vapour pressure equals the atmospheric pressure? (1) The liquid cools (2) The liquid boils (3) No change (4) The liquid evaporates

Description : What happens to a liquid, when the vapour pressure equals the atmospheric pressure? (1) The liquid cools (2) The liquid boils (3) No change (4) The liquid evaporates

Last Answer : (2) The liquid boils Explanation: Ordinary evaporation is a surface phenomenon -since the vapor pressure is low and since the pressure inside the liquid is equal to atmospheric pressure plus ... pressure is equal to atmospheric pressure, bubbles form, and the vaporization becomes a volume phenomena.

What happens to a liquid, when the vapour pressure equals the atmospheric pressure? (1) The liquid cools (2) The liquid boils (3) No change (4) The liquid evaporates

Description : What happens to a liquid, when the vapour pressure equals the atmospheric pressure? (1) The liquid cools (2) The liquid boils (3) No change (4) The liquid evaporates

Last Answer : The liquid boils

What number represents the ratio of speed of an object to the speed of sound in the surrounding air?

Description : What number represents the ratio of speed of an object to the speed of sound in the surrounding air?

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WHERE IS THE BEST PLACE TO CASH IN MY IRAQI DINARS. WITH THE LEAST AMOUNT OF FEES. NEAR NEW ORLEANS LA. AND THE SURROUNDING AREA.AM WILLING TO TRAVEL TO SURROUNDING STATES.?

Description : WHERE IS THE BEST PLACE TO CASH IN MY IRAQI DINARS. WITH THE LEAST AMOUNT OF FEES. NEAR NEW ORLEANS LA. AND THE SURROUNDING AREA.AM WILLING TO TRAVEL TO SURROUNDING STATES.?

Last Answer : This sounds like it's part of this scam http://bizcovering.com/investing/the-iraqi-dinar-scam

A hot air balloon has a volume of 2800 m^3 at 99°C. What is the volume if the air cools to 80°C?

Description : A hot air balloon has a volume of 2800 m^3 at 99°C. What is the volume if the air cools to 80°C?

Last Answer : A hot air balloon has a volume of 2800 m3 at 99°C. What is the volume if the air cools to 80°C?

What might happen next when an air mass cools to the point where it becomes saturated?

Description : What might happen next when an air mass cools to the point where it becomes saturated?

Last Answer : Precipitation

When air is warm, it rises and leaves an area of low pressure which becomes filled with sinking cold air. After a hot, sunny day, the land cools faster than the sea. What is likely to happen after a hot, sunny day on the sea shore?

Description : When air is warm, it rises and leaves an area of low pressure which becomes filled with sinking cold air. After a hot, sunny day, the land cools faster than the sea. What is likely to happen after a hot, sunny day on the sea shore?

Last Answer : When air is warm, it rises and leaves an area of low pressure which becomes filled with sinking cold air. After a hot, sunny day, the land cools faster than the sea. What is likely to happen after a hot, sunny day on the sea shore?

The first step in the generation of a sea breeze is . (a) air over land expands and builds a pressure gradient at the surface that pushes air offshore (b) air over land expands and builds a pressure gradient at the surface that pushes air onshore (c) hot air over land rises, cools and forms a cloud (d) air over land expands and builds a pressure gradient aloft that pushes air offshore

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Last Answer : air over land expands and builds a pressure gradient aloft that pushes air offshore

A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: (1) just after it is dropped (2) when it is just on the half-way (3) just before it touches the ground (4) when it touches the ground

Description : A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: (1) just after it is dropped (2) when it is just on the half-way (3) just before it touches the ground (4) when it touches the ground

Last Answer : (3) just before it touches the ground Explanation: When an object reaches the ground it has its maximum value of kinetic energy just before touching the ground. Since kinetic energy + potential energy ... energy of an object becomes zero (0). The kinetic energy on reaching ground becomes maximum.

A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: (1) just after it is dropped (2) when it is just on the half-way (3) just before it touches the ground (4) when it touches the ground

Description : A stone is dropped from the roof of a house towards the ground. The kinetic energy of the stone will be maximum: (1) just after it is dropped (2) when it is just on the half-way (3) just before it touches the ground (4) when it touches the ground

Last Answer : just before it touches the ground

Light coloured clothes are preferred in summer because (a) light colours are good radiators of heat (b) light colours are poor absorbers of heat (c) they soak sweat faster (d) they allow body heat to escape faster

Description : Light coloured clothes are preferred in summer because (a) light colours are good radiators of heat (b) light colours are poor absorbers of heat (c) they soak sweat faster (d) they allow body heat to escape faster

Last Answer : Ans:(b)

The freezer in a refrigerator is fitted near the top (a) to keep it away from the hot compressor which is near the bottom (b) because of convenience (c) so that it can cool the whole interior by setting up convection currents (d) without any specific purpose

Description : The freezer in a refrigerator is fitted near the top (a) to keep it away from the hot compressor which is near the bottom (b) because of convenience (c) so that it can cool the whole interior by setting up convection currents (d) without any specific purpose

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Compressed air should not be used to clean motor controller equipment because ________________. A. it may force metallic particles into coil insulation B. the surrounding area may need additional cleaning C. the air blast dries out insulation quickly D. a mask and respirator would be required

Description : Compressed air should not be used to clean motor controller equipment because ________________. A. it may force metallic particles into coil insulation B. the surrounding area may need additional cleaning C. the air blast dries out insulation quickly D. a mask and respirator would be required

Last Answer : Answer: A

Not far off shore a ship stands with a rope ladder hanging over her side. The rope has 10 rungs. The distance between each rung is 12 inches. The lowest rung touches the water. The ocean is calm. Because of the incoming tide, the surface of the water rises 4 inches per hour. How soon will the water cover the third rung from the top rung of the rope ladder? -Riddles

Description : Not far off shore a ship stands with a rope ladder hanging over her side. The rope has 10 rungs. The distance between each rung is 12 inches. The lowest rung touches the water. The ocean is calm. ... hour. How soon will the water cover the third rung from the top rung of the rope ladder? -Riddles

Last Answer : When a problem deals with a physical phenonmenon, the phenonmenon should be considered as well as the numbers given. As the water rises, so does the rope ladder. The water will never cover the rung.

Is it advisable to cool a fin fan by spraying demineralized water on it?

Description : Is it advisable to cool a fin fan by spraying demineralized water on it?

Last Answer : Fin fan has carbon steel tubes with aluminum fins RESPONSE In a similar service, the fin fan suffered external corrosion when spraying it with demin water. The salt and oxygen in the air ... , which should significantly lower the likelihood of cold ambient temperature causing the gas to condense.

Ventilators are provided near the ceiling of the room because – (1) the exhaled warmer air rises up and goes out (2) these provide cross ventilation in the room (3) these provide some sunlight in the room (4) these do not look nice in the lower part

Description : Ventilators are provided near the ceiling of the room because – (1) the exhaled warmer air rises up and goes out (2) these provide cross ventilation in the room (3) these provide some sunlight in the room (4) these do not look nice in the lower part

Last Answer : (1) the exhaled warmer air rises up and goes out Explanation: Ventilation is a room air distribution strategy where conditioned outdoor air is supplied at floor level and extracted above the occupied zone, ... to heat exchange with heat sources in the space (e.g., occupants, computers, lights).

Ventilators are provided near the ceiling of the room because (1) the exhaled warmer air rises up and goes out (2) these provide cross ventilation in the room (3) these provide some sunlight in the room (4) these do not look nice in the lower part

Description : Ventilators are provided near the ceiling of the room because (1) the exhaled warmer air rises up and goes out (2) these provide cross ventilation in the room (3) these provide some sunlight in the room (4) these do not look nice in the lower part

Last Answer : the exhaled warmer air rises up and goes out

Why does the body sweat when we are under stress, pain or extreme discomfort?

Description : Why does the body sweat when we are under stress, pain or extreme discomfort?

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Looking for something cool to do for my wife for her birthday this year. We have done the tree walk in Collingwood and we're not interested in ballooning or skydiving. Any fun ideas out there besides the obvious? I am hoping to stay in the Southern or near north regions of Ontario?

Description : Looking for something cool to do for my wife for her birthday this year. We have done the tree walk in Collingwood and we're not interested in ballooning or skydiving. Any fun ideas out there besides the obvious? I am hoping to stay in the Southern or near north regions of Ontario?

Last Answer : Do you mean Ontario the province in Canada?

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Description : When I sit by a campfire, how does its hot air heat me? -Physics

Last Answer : When you sit by a campfire, most of the heat you are receiving from the fire does not come from hot air. It comes from thermal radiation. Generally, there are three ways that heat can travel ... of your body facing away from the fire is literally in shadow and cannot receive the thermal radiation.

Why do our bodies sweat ?

Description : Why do our bodies sweat ?

Last Answer : Drinking less water releases excess heat and sweat to control body temperature. On the other hand, if you drink enough water, the temperature is controlled a lot and sweating is less.

The minimum number of judges to sit on the Constitutional Bench or on Bench which gives its advisory opinion on the reference by the President must be: (1) One half of the total strength of the Supreme Court (2) Seven (3) Three (4) One-third of the total strength of the court

Description : The minimum number of judges to sit on the Constitutional Bench or on Bench which gives its advisory opinion on the reference by the President must be: (1) One half of the total strength of the Supreme Court (2) Seven (3) Three (4) One-third of the total strength of the court

Last Answer : (1) One half of the total strength of the Supreme Court Explanation: Court's advisory jurisdiction may be sought by the President under Article 143 of the Constitution. This procedure is termed as " ... on the reference by the President must be one half of the total strength of the Supreme Court.

Dampers are located (A) Before the I.D fan (B) After the I.D. fan (C) Near the top of the chimney (D) Anywhere after the I.D. fan

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Processes which occur without the addition or withdrawal of heat from the surrounding are called what?

Description : Processes which occur without the addition or withdrawal of heat from the surrounding are called what?

Last Answer : ANSWER: ADIABATIC

What will happen when the earth's core cools?

Description : What will happen when the earth's core cools?

Last Answer : It’ll be a few billion years before this happens so I’ll keep my concern at a minimum… (thinks about how the recession is affecting her finances again)

What color cup of tea cools down quickly ?

Description : What color cup of tea cools down quickly ?

Last Answer : Tea in a black cup cools quickly.

The car cools the engine even after removing the key.

Description : Is it okay? This is a BMW

Last Answer : Yeah, it's okay after removing the key, the engine still has to cool down so that it doesn't get too hot and doesn't overheat, it takes about 1-3 minutes :-)

what cools a bottle of water faster ice or ice water

Description : what cools a bottle of water faster ice or ice water

Last Answer : Need Answer

What is smooth glassy rock that forms when lava cools so fast that there is no time for crystals to form?

Description : What is smooth glassy rock that forms when lava cools so fast that there is no time for crystals to form?

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How much heat energy will be lost by a 200 gram mass of water as it cools from 40 C to 35C?

Description : How much heat energy will be lost by a 200 gram mass of water as it cools from 40 C to 35C?

Last Answer : You need to multiply together all of the following:* The mass ingrams* The temperature difference* The specific heat of water

Do Volcanic necks and dikes form when magma cools and hardens into rock after reaching the surface?

Description : Do Volcanic necks and dikes form when magma cools and hardens into rock after reaching the surface?

Last Answer : No, these features form when magma cools into rocks BEFOREreaching the surface.

What is formed when the magma cools and solidifies?

Description : What is formed when the magma cools and solidifies?

Last Answer : When magma cools and solidifies, it forms igneous rock.

What type of volcano forms as lava spreads over a long distance and then cools and forms a hill that slopes gently?

Description : What type of volcano forms as lava spreads over a long distance and then cools and forms a hill that slopes gently?

Last Answer : What is the answer ?