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(a) WATER at ROOM temperature is liquid because at this temperature (i)it has fixed volume and (ii)it can flow. (B) An iron ALMIRAH is solid at room temperature because at this temperature (i) it has definite shape ALONG with fixed volume and (ii) It can not flow like water and hence does not possess fluidity.

An ELECTRIC current flows when electrons move through a conductor, such as a metal wire. The moving electrons can collide with the IONS in the metal. This makes it more difficult for the current to flow, and causes resistance.Explanation:i think it MAY help you

tion:the net force due to current carrying wire on ad and bc is 0reason is they are at same distance to the wireab and dc are parallel to the current carrying wireforce between two parallel or ANTIPARALLEL WIRES is uo/4π × 2i1i2/d there is no induced currentso apply direct formulathe force on ab is acted towards the wire and on bc is away from the wirefind resultant force and directionnote 1CM = .01 m

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concave mirrorExplanation:as the will be VIRTUAL and also GET diminisherplease FOLLOW me and mark me as BRAINLIST

9090Explanation:. Determine the FREQUENCY, TIME PERIOD, WAVELENGTH and wave speed of the represented wave.

tion:- Resistance is DIRECTLY PROPORTIONAL to the length of the wire, and inversely proportional to the cross sectional area of the wire. ... As a wire gets LONGER its resistance INCREASES, and as it gets thinner its resistance also increases because its cross sectional area decreases.

Reflection of LIGHT (and other forms of ELECTROMAGNETIC radiation) occurs when the waves encounter a surface or other BOUNDARY that does not absorb the ENERGY of the radiation and bounces the waves away from the surface.hope this HELPS ♥️

Suppose an object is placed u CM in front of a SPHERICAL mirror of focal length f such that the image is formed v cm from the mirror, then u, v and f are related by the EQUATION; 1/f= 1/u + 1/v. This equation is REFERRED to as the mirror formula. The formula holds for both concave and convex mirrors.

ve mirror is used as the reflector in SEARCH LIGHTS, head lights of motor vehicles, solar cookers, TORCHES and in table lamps. A CONVEX mirror is used in automobiles such as scooters, trucks and buses as rear view mirror to SEE the traffic behind the vehicle.

hyExplanation:MYOPIA or NEARSHIGHTED. Myopia occurs when the EYEBALL is too long, relative to the focusing POWER of the cornea and lens of the eye. ... HYPEROPIA or FARESIGHTED. This vision problem occurs when light rays entering the eye focus behind the retina, rather than DIRECTLY on it. ... ASTIGMATISM. ... PRESBYOPIA....Myopia can be corrected by wearing glasses/contacts with concave lenses these HELP to focus the image on the retina. Hyperopia: (farsightedness) This is a defect of vision in which there is difficulty with near vision but far objects can be seen easily. The image is focused behind the retina rather than upon it..

The pressure in a liquid is different at different depths. Pressure INCREASES as the DEPTH increases. The pressure in a liquid is due to the weight of the COLUMN of water above. Since the PARTICLES in a liquid are tightly PACKED, this pressure acts in all directions.Explanation:

The golden RULES of First AidThe golden rules of First AidUse a systematic approach in all medical emergencies.Identify and avoid RISKS to yourself, the person affected and THIRD parties.Request support EARLY (first aiders, AED, EMERGENCY number 144).Be “suspicious” and primarily assume it is something serious.Deal quickly with any chaos and cope with the situation.

A convex LENS is used for correction. So READING glasses is made up of convex lens. OBJECT is placed a normal distance from EYE which is approxiamately 25cm for normal vision.

e of DEVICE that measures P.D is VOLTMETER. No we can't connect it in SERIES because it won't be able to give correct measureMARK ME AS BRAINLIEST

On stretching the forefinger, middle FINGER, and thumb of the left HAND PERPENDICULAR to one another, the forefinger points in the direction of magnetic field, the middle finger points in the direction of current, and the direction in which the thumb points GIVES the direction of force.Sorry but can't SHOW a diagramHope it helpsExplanation:Please mark me as brainliest and also follow me

tion:A cut DIAMOND sparkles because of its HIGH refractive INDEX. Because of the high refractive index, the light SUFFERS total internal REFLECTIONS many times. That is why it sparkles.

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yes... resistance ALSO DEPENDS upon temperature. As temperature raises the resistance of conductor also raise and VISE VERA....

A PUSH or PULL is CALLED FORCE and it is a VECTOR why.

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Reflection in the mirror is the BEST EXAMPLE of a virtual image. By the intersecting rays, the real images are produced, and by DIVERGING rays, the virtual images are produced.

tion:The RADIUS of the circle= r(i) When it completes half circle:-(REFER to Image 1)Distance= 2circumference = 22πr Distance= πrDisplacement= r+r=2r(ii) When it completes 3/4 th of the circle:-The distance covered= 43 (circumference)⇒ 43 (2πr)= 23 πrThe displacement= AB (Refer to Image 2)By USING pythagoras theoremAB 2 =r 2 +r 2 ⇒AB 2 =2r 2 ⇒AB= 2 rDisplacement= 2 rDistance= 23 πr

tion:Let T be the temperature of the ice-cream (in ∘C) after t minutes out of the freezer. Then Newton's law givesdTdt=−k(T−32)=−kT+32k.Remembering that k is a CONSTANT, solving this DIFFERENTIAL equation gives a general solution ofT=Ce−kt+32.Since T=−18 when t=0, we OBTAIN −18=C+32, so C=−50. Since T=−8 when t=1, we have −8=−50e−k+32, which gives k=loge54. We obtainT=−50e−(loge54)t+32=−50(45)t+32.(Here we used some INDEX laws.) Hence, when t=5, we haveT=−50(45)5+32=1952125≈15.6 ∘C.Your ice-cream has well and truly melted! Note that we have effectively assumed that the ice-cream is a block of a single temperature — not very realistic.

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A FOOTBALL of mass 0.4kg, initially at REST is kicked by a force of magnitude 1000N for 10s. To Find : the VELOCITY of the ball after the kick Solution:F = 1000Nm = 0.4 kgF = ma=> 1000N = 0.4 (a)=> a = 2500 m/s²initially at rest u = 0a =  2500 m/s²t = 10 secV = u + at => V = 0  + 2500(10)=> V = 25000 m/s velocity of the ball after the kick expressed as an integer in m/s is = 25000Learn More: 3) Consider a car being driven along a straight road. The velocity of ... brainly.in/question/18501709 In one dimensional motion, can an object has zero velocity and non ... brainly.in/question/11911818

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tion:An ultrasound scan uses high-frequency sound waves to MAKE an image of a person's internal body structures. Doctors commonly use ultrasound to STUDY a developing fetus (unborn baby), a person's abdominal and PELVIC organs, muscles and TENDONS, or their heart and BLOOD vessels.

F=1/T F=20/40=1/2Hz T=1/F T=1/1/2=2sExplanation:

Common EXAMPLES include sodium HYDROXIDE, magnesium hydroxide, sodium hydrogen carbonate (sodium bicarbonate), sodium hypochlorite and ammonia. NEUTRALISATION is a reaction between an acid and an ALKALI that forms a salt and water.I hope this answer help you!

Kink in the clinical THERMOMETER helps to PROHIBIT the FALLING of mercury present in the capillary tube into the bulb ENSURING that a person should get the correct reading even after taking the thermometer out from his/her MOUTH.

posure: Ways the Body Loses HeatTopic OverviewThe body loses heat through:Evaporation of water from your skin if it is wet (sweating). If your clothing is wet, you will also LOSE some body heat through evaporation and through respiration (breathing) when the body temperature is higher than 99°F (37°C). During intense exercise, the body loses 85% of its heat through sweating.Radiation (similar to heat leaving a woodstove). This normal process of heat moving away from the body usually occurs in air temperatures lower than 68°F (20°C). The body loses 65% of its heat through radiation.Conduction (such as heat loss from SLEEPING on the cold ground). Heat is lost in air temperatures lower than 68°F (20°C). The body loses about 2% of its heat through air conduction. However, water causes more heat loss from the body than air does, so heat can be lost from the body very QUICKLY when it is placed in cold water.Convection (similar to sitting in front of a fan or having the wind BLOW on you). The body loses 10% to 15% of its heat through convection.Heat loss through evaporation and respiration increases in dry, windy weather conditions.Wet clothing greatly increases heat loss through conduction and evaporation.Heat loss in cold, wet weather increases the risk for hypothermia and cold injury. Heat loss can occur in warm temperatures through conduction. Swimming or sitting in cool or cold water can cause the body to lose heat very quickly and increase the risk for hypothermia.Hypothermia can occur quickly (within a few HOURS) or gradually over days and weeks depending on a person's age, overall health, and environmental conditions.

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