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Answer:

VOLUME =BASE*length *height

Base*length=15cm (GIVEN)

Volume=15*2=30cm³

DENSITY =mass/volume

Density =50/30

=5/3

=1.66g/cm³

Answer:

RESISTANCE is a measure of the opposition to current flow in an electrical circuit that is measured in OHMS, SYMBOLIZED by the Greek letter omega (Ω).

It is used to reduce current flow, ADJUST signal levels, to divide voltages, bias active elements, and terminate TRANSMISSION lines.

Hope it helped you....

Answer:

Second STATEMENT is also false because displacement is less than or equal to the DISTANCE TRAVELLED by the object in case of motion in opposite DIRECTION. Speed is the distance travelled by an object in a given interval of time. Velocity is the displacement SHOWN by an object in a given interval of time.

Answer:

84×5/18=23.33m/s is ANS

Explanation:

bcs one FORCE directs downward that is mg

and just opposite to that,

there is REACTION force directs upward to BALANCE each other....

EXPLANATION:

LET £ be the WAVELENGTH, T be the temperature

as per weins LAW, for sun

4753*T =2898*10^4

T =2898*10^4 /4753

T = 6097 °k

for moon

14*T = 2898*10^4

T = 207 °k

option a is CORRECT

ANSWER:

NEWTON BEACAUSE WEIGHT is a FORCE.

If one atom of Ni has a magnetic MOMENT of 0.6 BOHR magnetons, deduce the SATURATION MAGNETIZATION Ms and the saturation magnetic induction BS for Ni. Answer: The saturation magnetization is given by Ms = 0.6µBN , where N is the number of atoms/m3. = , where ρ is the density and ANi is the atomic weight of Ni.

EXPLANATION:

COMPLETE it...........

Answer:

Sun: 99.85%

Planets: 0.135%

COMETS: 0.01% ?

Satellites: 0.00005%

MINOR Planets: 0.0000002% ?

METEOROIDS: 0.0000001% ?

Interplanetary Medium: 0.0000001% ?

EXPLANATION:

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EXPLANATION:

no.....................

ANSWER:

Newton's Third LAW of Motion

Explanation:

As the swimmer swims he/she pushes the water back(action force).

On the other side the water pushes the swimmer (REACTION force).

This helps the swimmer MOVE ahead.

Hope it helped...

ANSWER:

it DEPENDS UPON the SITUATION of PROBLEMS

Answer:

Explanation:

How to handle sewage dumps

Sewage disposal can be controlled via use of septic tanks and treatment plants.

1- Septic tanks are basically UNDERGROUND containers which can be used for getting rid off human waste.

Whatever waste exists get stuck to the BOTTOM of the septic tank and becomes sludge.

Solid waste breaks down and remaining material floating above in a layer, for example like oils, gets rid separately.

Next comes the,

Treatment Plant's which may be set up which can first break down and SECONDLY treat waste. After the septic tank does its job, the waste floats into the treatment plant. These plants come into use for the sake of handling liquids which have been disposed off.

How to handle sewage maintenance

To handle sewage maintenance, a professional works. There is a professional CONTRACTOR who regularly functions on how to pump out he septic system. This authoritative PERSON pumps out every two to three years.

ANSWER:

ARCHIMEDES. He DISCOVERED the LAW of BUOYANCY

Answer:

+6

Explanation:

Given:

f=5

v= -25

Applying the Lens formula

1/v -1/u = 1/f

1/(-25) -1/u = 1/5

or, 1/u = 1/(-25) - 1/5

1/u = -6/25

u = -25/6

Now, MAGNIFICATION M

M = v/u

= (-25) / (-25/6)

= +6

I don't KNOW SORRY ASK your TEACHER

Answer:

The distances between the SLIT and the biprism and between biprism and screen are 50 CM each. The angle of biprism is179° and its refractive INDEX is 1.5. If the distance between the SUCCESSIVE FRINGES is 0.0135cm, calculate the wavelength of light.

Explanation:

distances

ANSWER:

the GRAVITY which doesn't CHANGE at the MOMENT

Answer:

B and D is the right answer

AS OXALIC ACID is a weak acid and is therefore a weak electrolyte

Also, tap WATER is a weak electrolyte as it contains hydrogen and oxygen atoms which have weak ionization energy/power

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ANSWER:

I do not KNOW the answer PLEASE MARK me the brilanest

Answer:

Explanation: total time = 2MIN 20 sec=140s

Divide by 40s

You get 3.5 MEANS he got 3 and a half round

Distance = 3.5*200 = 700m

Displacent 0.5*200=100m

Hope you UNDERSTAND

Answer:

Momentum :-

Momentum  is the product of the mass and velocity of an object. It is a vector quantity, possessing a magnitude and a DIRECTION in three-dimensional space. If m is an object's mass and V is the velocity (also a vector), then the momentum is p=mv, In SI units, it is measured in KILOGRAM meters per second (kg⋅m/s).

There are four types of Momentum :-

Angular Momentum.

Linear Momentum.

Conceptual Momentum.

Inertia.

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Explanation:

The phenomenon of Electro-magnetic INDUCTION was

discovered by the Italian SCIENTIST, Alessandro volto is and plz FOLLOW me false

EXPLANATION:

ANSWER of this QUESTION is TRUE

ANSWER:

ELECTRONIC CONFIGURATION of SCANDIUM is

2,8,8,3

this is only CORRECT

EXPLANATION:

hope it's help you

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Lens manufacturers use the lens maker’s formula to manufacture lenses of the desired focal LENGTH. Lenses of different focal length are used for different optical instruments. The focal length of a lens depends on the refractive index of the lens and the radii of curvature. The lens maker’s equation is another formula used for lenses that give us a relationship between the focal length, refractive index, and radii of curvature of the two SPHERES used in lenses.

The lens maker’s equation for thin lenses is as given below as;

1f = (n−1)(1R1 − 1R2)

where,

f is the focal length (half the radius of curvature)

n is the refractive index of the material used

R1 is the radius of curvature of sphere 1

R2 is the radius of curvature of sphere 2

As previously mentioned, this equation can be used only for thin lenses. Lenses where the thickness is lesser, such that they are considered NEGLIGIBLE in comparison to the radius of curvature, are referred to as thin lenses.

If the thickness of lens has to be considered in comparison to the radius of curvature, the following lens formula for thick lenses can be used.

1f = (n−1)[1R1 − 1R2 + (n−1)dn×R1×R2]

where,

d is the thickness of the lens in consideration.

Another situation which has to be considered is the lens maker’s formula accounting for objects that are present in different media. The equation is as follows,

1f=[n1n2 − 1] × [R1 − R2R1 × R2]

where,

n1 is the refractive index of the lens in consideration

n2 is the refractive index of the medium outside

Have you asked yourself this question? “What is the significance of ignoring the thickness sometimes and considering it sometimes?”

Well, the answer to that is when the light ray travels from a medium of, SAY air, to the medium of the lens, it undergoes refraction. But when it travels from the medium of the lens to that of the air, it undergoes refraction again. The double refraction can be ignored if the lenses in optics are thin enough to make the assumption that light is refracted only once. This is done to make ray optics calculations simpler, but the first step would be to identify what constitutes thin and thick lenses.

Limitations of Lens Maker’s Formula

The lens needs to be thin. This is because the separation between the two refracting surfaces will also be small.

The medium on either side of the lens needs to be the same.

On violation of any of the limitation then the refraction at the curved surface formula is used for both the surfaces.

Helpful Sign Conventions

For a Convex (converging) Lens

R1 = positive

R2 = negative

f = positive

For a Concave (diverging) Lens

R1 = negative

R2 = positive

f = negative

EXPLANATION:

An intrinsic SEMICONDUCTOR, with equal numbers of mobile electrons and holes, is predicted to have a zero Hall COEFFICIENT. Several MANUFACTURERS make Hall Effect sensors in which a sensitive comparator detects the Hall VOLTAGE and provides a logic output.

Answer:

Medium is an online PUBLISHING platform developed by Evan Williams and LAUNCHED in August 2012. ... The platform is an example of social JOURNALISM, having a hybrid collection of amateur and professional people and publications, or EXCLUSIVE blogs or publishers on Medium, and is regularly regarded as a blog host.

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When a BALL is let free FALL from the top of the BUILDING then it's initial velocity will be 0 or it's ACCELERATION will be +9.8 m/s^2.

EXPLANATION:

Mass _ The amount of MATTER present in the substance.

Size_ These is MEASURED by height or LENGTH

Answer:

❤️❤️Updated Jul 10, 2018 · Author has 6.2k answers and 18.2m answer views. There is no upper BOUND to the range of gravity, including the gravity ASSOCIATED with EARTH. In Newtonian physics the acceleration DUE to gravity is inversely proportional to the square of the distance.❤️❤️

Explanation:

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ANSWER:

R2=R1(1+a(T2-T1))

R1=100

R2=117

T1=27+273=300k

117=100(1+1.7×10^-4(T2-300))

17=1.7×10^-2(T2-300)

T2-300=100

T2=1300k

T2=1300-273=1027C

Answer:

STATIC ELECTRICITY can be stored in a Leyden jar, Direct current (DC) electricity can be stored in a capacitor and a rechargeable battery. Unfortunately, there is no way to store ALTERNATING current (AC) electricity, although it can be obtained from stored DC power.

Explanation:

Hello dear

OHM's Law is a formula used to CALCULATE the relationship between voltage, current and resistance in an electrical circuit.

To students of electronics, Ohm's Law (E = IR) is as FUNDAMENTALLY important as Einstein's RELATIVITY equation (E = mc²) is to physicists.

E = I x R

When spelled out, it means voltage = current x resistance, or volts = amps x ohms, or V = A x Ω.

Named for German physicist Georg Ohm (1789-1854), Ohm's Law addresses the key quantities at work in circuits

thanks

ANSWER:

Because there is a GRAVITATIONAL force of EARTH is act and HENCE APPLE fell down

Answer:

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Answer:

make an PRINCIPAL axis , now from CENTRE make an arc of any radius and where ARCHIVE INTERSECTS NAME p and half of c and p name f

EXPLANATION:

average velocity = (60*40)/(60+40)

= 2400/100 = 24 km/hr

ANSWER:

I MIGHT be HELPFUL for you

3 : 5

intensity DIRECTLY PROPORTIONAL to AMPLITUDE ²

ANSWER:

Because it has no charge inside the spherical shell.

Explanation:

Gaussian surface ENCLOSES no charge.

Hence the field inside the spherical shell is ALWAYS zero .thus the electric field intensity inside a charge CONDUCTOR is zero .

ANSWER:

HENCE, at the centre of the circular loop, the field LINES will be nearly straight lines and the MAGNETIC field at the centre is uniform.

Explanation:

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DEFINITION :An object continues to remain at REST or in a state of uniform motion along a state line unless an EXTERNAL unbalanced force acts on it...

INERTIA IS THE TENDENCY OF AN OBJECT TO REMAIN AT REST OR IN A STATE OF UNIFORM MOTION ALONG A STRAIGHT LINE... SO HERE, MAIN FOCUS IS ON INERTIA... THIS LAW IS ALSO CALLED GALILEO'S LAW OF INERTIA...

IT DEFINES INERTIA... SO OPTION A...

ANSWER:

COMPLETE your QUESTION before ASKING it

ANSWER:

ELECTRIC feilf intensity=electric flux/area

Do HIGHLIGHTS only it's HELPS U to UNDERSTAND

EXPLANATION:

The above GIVEN ANSWER is PROVED