Biology
General
Easy

Question

Systemic heart refers to

  1. RBC per ml of blood

  2. The heart that contracts under stimulation from nervous system

  3. Haemoglobin per ml of blood

  4. Nutrient per ml of blood

The correct answer is:

Haemoglobin per ml of blood

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Penicillin was discovered by -

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If fraction numerator b over denominator c plus a end fraction plus fraction numerator c over denominator a plus b end fraction equals 1 then

All three sides are equal. All three angles are congruent and are equal to 60 degrees. It is a regular polygon with three sides. The perpendicular drawn from vertex of the equilateral triangle to the opposite side bisects it into equal halves.

If fraction numerator b over denominator c plus a end fraction plus fraction numerator c over denominator a plus b end fraction equals 1 then

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All three sides are equal. All three angles are congruent and are equal to 60 degrees. It is a regular polygon with three sides. The perpendicular drawn from vertex of the equilateral triangle to the opposite side bisects it into equal halves.

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Two bodies of mass 1 kg and 3 kg have position vector left parenthesis straight i plus 2 straight j with not stretchy hat on top plus straight k right parenthesis times text  and  end text times left parenthesis negative 3 straight i minus 2 straight j plus straight k right parenthesis   respectively the center of mass of this system has a position vector.

Two bodies of mass 1 kg and 3 kg have position vector left parenthesis straight i plus 2 straight j with not stretchy hat on top plus straight k right parenthesis times text  and  end text times left parenthesis negative 3 straight i minus 2 straight j plus straight k right parenthesis   respectively the center of mass of this system has a position vector.

physics-General
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In straight triangle A B C comma left parenthesis a plus b plus c right parenthesis open parentheses tan A over 2 plus tan space B over 2 close parentheses equals

In straight triangle A B C comma left parenthesis a plus b plus c right parenthesis open parentheses tan A over 2 plus tan space B over 2 close parentheses equals

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physics-

In HCl macule the separation between the nuclei of the two atoms is about1.27 straight A open parentheses IA equals 10 to the power of negative 10 end exponent straight m close parentheses The approximate location of the center of mass of the molecule is - -A,i with respect of Hydrogen atom ( mass of  is 35.5 times of mass of Hydrogen)

In HCl macule the separation between the nuclei of the two atoms is about1.27 straight A open parentheses IA equals 10 to the power of negative 10 end exponent straight m close parentheses The approximate location of the center of mass of the molecule is - -A,i with respect of Hydrogen atom ( mass of  is 35.5 times of mass of Hydrogen)

physics-General
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General
chemistry-

Concrete is produced from a mixture of cement, water and small stones. Small amount of gypsum, C a S O subscript 4 times 2 H subscript 2 O is added in cement production to improve the subsequent hardening of concrete. The elevated temperature during the production of cement may lead to the formation of unwanted hemihydrate
C a S O subscript 4 times 1 half H subscript 2 O according to reaction,
C a S O subscript 4 times 2 H subscript 2 O open parentheses s close parentheses rightwards arrow C a S O subscript 4 times 1 half H subscript 2 O open parentheses s close parentheses plus 3 over 2 H subscript 2 O left parenthesis g right parenthesis
The increment subscript f end subscript H to the power of ⊖ end exponentofC a S O subscript 4 times 2 H subscript 2 O open parentheses s close parentheses comma blank C a S O subscript 4 times 1 half H subscript 2 O open parentheses s close parentheses comma H subscript 2 O left parenthesis g right parenthesis are negative 2021.0 blank k J blank m o l to the power of negative 1 end exponent comma blank minus 1575.0 k J blank m o l to the power of negative 1 end exponent and negative 241.8 blank k J blank m o l to the power of negative 1 end exponent respectively. The respective values of their standard entropies are 194.0, 130.0 and 188.0 blank J blank K to the power of negative 1 end exponent blank m o l to the power of negative 1 end exponent. The values of R equals 8.314 blank J blank K to the power of negative 1 end exponent m o l to the power of negative 1 end exponent equals 0.0831 blank L blank b a r blank m o l to the power of negative 1 end exponent K to the power of negative 1 end exponent
Answer the following questions on the basis of above information
Heat change occurring during conversion of 1 kg of C a S O subscript 4 times 2 H subscript 2 O left parenthesis s right parenthesis (molar mass 172 g m o l to the power of negative 1 end exponent) of C a S O subscript 4 times 1 half H subscript 2 O left parenthesis s right parenthesis is equal to

Concrete is produced from a mixture of cement, water and small stones. Small amount of gypsum, C a S O subscript 4 times 2 H subscript 2 O is added in cement production to improve the subsequent hardening of concrete. The elevated temperature during the production of cement may lead to the formation of unwanted hemihydrate
C a S O subscript 4 times 1 half H subscript 2 O according to reaction,
C a S O subscript 4 times 2 H subscript 2 O open parentheses s close parentheses rightwards arrow C a S O subscript 4 times 1 half H subscript 2 O open parentheses s close parentheses plus 3 over 2 H subscript 2 O left parenthesis g right parenthesis
The increment subscript f end subscript H to the power of ⊖ end exponentofC a S O subscript 4 times 2 H subscript 2 O open parentheses s close parentheses comma blank C a S O subscript 4 times 1 half H subscript 2 O open parentheses s close parentheses comma H subscript 2 O left parenthesis g right parenthesis are negative 2021.0 blank k J blank m o l to the power of negative 1 end exponent comma blank minus 1575.0 k J blank m o l to the power of negative 1 end exponent and negative 241.8 blank k J blank m o l to the power of negative 1 end exponent respectively. The respective values of their standard entropies are 194.0, 130.0 and 188.0 blank J blank K to the power of negative 1 end exponent blank m o l to the power of negative 1 end exponent. The values of R equals 8.314 blank J blank K to the power of negative 1 end exponent m o l to the power of negative 1 end exponent equals 0.0831 blank L blank b a r blank m o l to the power of negative 1 end exponent K to the power of negative 1 end exponent
Answer the following questions on the basis of above information
Heat change occurring during conversion of 1 kg of C a S O subscript 4 times 2 H subscript 2 O left parenthesis s right parenthesis (molar mass 172 g m o l to the power of negative 1 end exponent) of C a S O subscript 4 times 1 half H subscript 2 O left parenthesis s right parenthesis is equal to

chemistry-General
General
chemistry-

For an ideal gas, an illustration of three different paths A comma blank open parentheses B plus C close parentheses and left parenthesis D plus E right parenthesis from an initial state P subscript 1 end subscript comma V subscript 1 end subscript comma T subscript 1 end subscript to a final state P subscript 2 end subscript comma blank V subscript 2 end subscript comma blank T subscript 1 end subscript is shown in the given figure

Path A represents a reversible isothermal expansion from P subscript 1 end subscript comma V subscript 1 end subscriptto P subscript 2 end subscript comma V subscript 2 end subscript. Path left parenthesis B plus C right parenthesis represents a reversible adiabatic expansion (B) from P subscript 1 end subscript V subscript 1 end subscript comma blank T subscript 1 end subscript toP subscript 3 end subscript comma V subscript 2 end subscript comma blank T subscript 2 end subscript followed by reversible heating the gas at constant volume (C) from P subscript 3 end subscript comma blank V subscript 2 end subscript comma blank T subscript 2 end subscriptto P subscript 2 end subscript comma blank V subscript 2 end subscript comma blank T subscript 1 end subscript. Path left parenthesis D plus E right parenthesis represents a reversible expansion at constant pressure P subscript 1 end subscript left parenthesis D right parenthesis from P subscript 1 end subscript comma blank V subscript 1 end subscript comma blank T subscript 1 end subscript to P subscript 1 end subscript comma blank V subscript 2 end subscript comma blank T subscript 3 end subscript followed by a reversible cooling at constant volume V subscript 2 end subscript left parenthesis E right parenthesis from P subscript 1 end subscript comma blank V subscript 2 end subscript comma blank T subscript 3 end subscript to P subscript 2 end subscript comma blank V subscript 2 end subscript comma blank T subscript 1 end subscript
What is q subscript r e v end subscript , for path left parenthesis A right parenthesis?

For an ideal gas, an illustration of three different paths A comma blank open parentheses B plus C close parentheses and left parenthesis D plus E right parenthesis from an initial state P subscript 1 end subscript comma V subscript 1 end subscript comma T subscript 1 end subscript to a final state P subscript 2 end subscript comma blank V subscript 2 end subscript comma blank T subscript 1 end subscript is shown in the given figure

Path A represents a reversible isothermal expansion from P subscript 1 end subscript comma V subscript 1 end subscriptto P subscript 2 end subscript comma V subscript 2 end subscript. Path left parenthesis B plus C right parenthesis represents a reversible adiabatic expansion (B) from P subscript 1 end subscript V subscript 1 end subscript comma blank T subscript 1 end subscript toP subscript 3 end subscript comma V subscript 2 end subscript comma blank T subscript 2 end subscript followed by reversible heating the gas at constant volume (C) from P subscript 3 end subscript comma blank V subscript 2 end subscript comma blank T subscript 2 end subscriptto P subscript 2 end subscript comma blank V subscript 2 end subscript comma blank T subscript 1 end subscript. Path left parenthesis D plus E right parenthesis represents a reversible expansion at constant pressure P subscript 1 end subscript left parenthesis D right parenthesis from P subscript 1 end subscript comma blank V subscript 1 end subscript comma blank T subscript 1 end subscript to P subscript 1 end subscript comma blank V subscript 2 end subscript comma blank T subscript 3 end subscript followed by a reversible cooling at constant volume V subscript 2 end subscript left parenthesis E right parenthesis from P subscript 1 end subscript comma blank V subscript 2 end subscript comma blank T subscript 3 end subscript to P subscript 2 end subscript comma blank V subscript 2 end subscript comma blank T subscript 1 end subscript
What is q subscript r e v end subscript , for path left parenthesis A right parenthesis?

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If t is parameter, A = (aSec t, bTan t) and B = (-aTan t, bSec t), O = (0, 0) then the locus of the centroid of straight capital delta OAB is

If t is parameter, A = (aSec t, bTan t) and B = (-aTan t, bSec t), O = (0, 0) then the locus of the centroid of straight capital delta OAB is

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A straight line of length 9 units slides with its ends A, B always on x and y axes respectively. Locus of centroid of straight capital delta OAB is

A straight line of length 9 units slides with its ends A, B always on x and y axes respectively. Locus of centroid of straight capital delta OAB is

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If the earth were to suddenly contract so that its radius become half of it present radius, without any change in its mass, the duration of the new day will be....

If the earth were to suddenly contract so that its radius become half of it present radius, without any change in its mass, the duration of the new day will be....

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If the angles of the Δ ABC are in A.P then 3R2=1

s denotes the semi-perimeter of the triangle ABC, ∆ its area and R the radius of the circle circumscribing the triangle ABC i.e., R is the circum-radius.

If the angles of the Δ ABC are in A.P then 3R2=1

Maths-General

s denotes the semi-perimeter of the triangle ABC, ∆ its area and R the radius of the circle circumscribing the triangle ABC i.e., R is the circum-radius.

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Two circular loop A & B of radius rA and  rrespectively are made from a uniform wire. The ratio of their moment of inertia about axes passing through their center and perpendicular to their planes is I subscript B over I subscript A equals 8 times text  then  end text fraction numerator r b over denominator r a end fraction  is equal to...

Two circular loop A & B of radius rA and  rrespectively are made from a uniform wire. The ratio of their moment of inertia about axes passing through their center and perpendicular to their planes is I subscript B over I subscript A equals 8 times text  then  end text fraction numerator r b over denominator r a end fraction  is equal to...

physics-General
General
Maths-

In straight capital delta A B C comma c left parenthesis a cos space B minus b cos space A right parenthesis equals

s denotes the semi-perimeter of the triangle ABC, ∆ its area and R the radius of the circle circumscribing the triangle ABC i.e., R is the circum-radius.

In straight capital delta A B C comma c left parenthesis a cos space B minus b cos space A right parenthesis equals

Maths-General

s denotes the semi-perimeter of the triangle ABC, ∆ its area and R the radius of the circle circumscribing the triangle ABC i.e., R is the circum-radius.

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In straight triangle A B C comma sum fraction numerator a squared sin space left parenthesis B minus C right parenthesis over denominator sin begin display style space end style A end fraction equals

In straight triangle A B C comma sum fraction numerator a squared sin space left parenthesis B minus C right parenthesis over denominator sin begin display style space end style A end fraction equals

maths-General
parallel

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