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Answer:

55m

Explanation:

a=v-u/t

t=v-u/a

substituting the VALUES,

25-20/2= 2.5 s

DISTANCE travelled=ut+ 1/2*at^2

20*2.5+1/2*2*(2.5)^2

=50+5 m

=55 m

Answer:

3890 m= 3.89 KM & 3890m = 389000 cm

1 km= 1000M. Hence, 1 m = 1/1000 km.

1 m = 100 cm . Hence, 1CM= 1/100m.

Answer:

The International System of Units (SI, abbreviated from the French Système international (d'unités)) is the modern form of the metric system, and is the most widely used system of measurement. It comprises a coherent system of units of measurement built on seven base units, which are the second, metre, kilogram, ampere, kelvin, mole, candela, and a set of twenty prefixes to the unit names and unit symbols that may be used when SPECIFYING multiples and fractions of the units. The system also SPECIFIES names for 22 derived units, such as lumen and WATT, for other COMMON physical quantities.

Answer:

EXPLANATION:

It's too simple... Answered by an IIT JEE ASPIRANT... And all India mathematics OLYMPIAD TOPPER in 10TH...

ANSWER:

this is DUE to RELATIVE VELOCITY

ANSWER:

Hope this helps you.................

Explanation:

Electric field at CENTER of the cube will be ZERO, this is because diagonally opposite charges PRODUCES equal and opposite fields which CANCELS out each other

****

Rheostat Is a device USED to CONTROL and change the flow of electric current through a MACHINE

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ANSWER:

T1......

HOPE it HELPS.....

ANSWER:

what I COULD not UNDERSTAND

Answer:

Explanation:By definition, the specific gravity (or RELATIVE DENSITY) of a material is a ratio of the density of that material to the density of water at  

4  degree celsius.

which is the temperature at which water has its maximum density.

So if COPPER has a relative density of 8.9, it MEANS that at  

4

, copper is 8.9 times more DENSE than water.

ANSWER:

The HANDWRITTEN answer that I WROTE YESTERDAY.

EXPLANATION:

HOPE it will HELP you

ANSWER:

AREA under the graph represents the distance covered by the given particle so here

• we can see that area = area of rectangle + area of the TWO triangles
• then
• distance = 20*30=600 (area of rec)
• area of the triangle = 1/2 *10*30 = 150
• area of another triangle = 225

Explanation:

sum up these areas nd u got the your distance traversed

600 + 150 + 225 =975

MARK IT BRAINLIEST:)

Answer:

motion is the MOVEMENT of a BODY from 1 POINT to another

ANSWER:

MERK me as BRAINLIEAST.....PLZZ

Answer:

The image is likely to be VIRTUAL and ERECT.

Explanation:

The positive sign in front of the magnification denotes that the image is larger than the object. Also, we can conclude that the image is standing upright. HENCE, it STATES that the image is erect as well as virtual.

I HOPE IT HELPED YOU!

Answer:

Its NATURE gift.

EXPLANATION:

No one DISCOVERED it

ANSWER:

T2 > T1

Explanation:

Asteroids are minor planets, especially of the inner Solar System. Larger asteroids have also been called planetoids. These terms have historically been applied to any astronomical object orbiting the Sun that did not resemble a planet-like disc and was not observed to have characteristics of an active comet such as a tail. As minor planets in the outer Solar System were discovered they were typically found to have volatile-rich surfaces similar to comets. As a result, they were often distinguished from OBJECTS found in the main asteroid belt.[1] In this article, the term "asteroid" refers to the minor planets of the inner Solar System including those co-orbital with Jupiter.

There exist millions of asteroids, many thought to be the shattered remnants of planetesimals, bodies within the young Sun's solar nebula that never grew LARGE enough to become planets.[2] The vast majority of known asteroids orbit within the main asteroid belt located between the orbits of Mars and Jupiter, or are co-orbital with Jupiter (the Jupiter trojans). HOWEVER, other orbital families exist with SIGNIFICANT populations, including the near-Earth objects. Individual asteroids are classified by their characteristic spectra, with the majority falling into three main groups: C-type, M-type, and S-type. These were named after and are generally identified with carbon-rich, metallic, and silicate (stony) compositions, respectively. The sizes of asteroids varies greatly; the largest, Ceres, is almost 1,000 km (625 mi) across.

Asteroids are differentiated from comets and meteoroids. In the case of comets, the difference is one of composition: while asteroids are mainly composed of mineral and rock, comets are primarily composed of dust and ice. Furthermore, asteroids formed closer to the sun, preventing the development of cometary ice.[3] The difference between asteroids and meteoroids is mainly one of size: meteoroids have a diameter of one meter or less, whereas asteroids have a diameter of greater than one meter.[4] Finally, meteoroids can be composed of either cometary or asteroidal materials.[5]

Only one asteroid, 4 Vesta, which has a relatively reflective surface, is normally visible to the naked eye, and this only in very dark skies when it is favorably positioned. Rarely, small asteroids passing close to Earth may be visible to the naked eye for a short time.[6] As of October 2017, the Minor Planet Center had data on almost 745,000 objects in the inner and outer Solar System, of which almost 504,000 had enough information to be given numbered designations.[7]

The United Nations declared 30 June as International Asteroid Day to educate the public about asteroids. The date of International Asteroid Day commemorates the anniversary of the Tunguska asteroid impact over Siberia, Russian Federation, on 30 June 1908.[8][9]

In April 2018, the B612 Foundation reported "It's 100 percent certain we'll be hit [by a devastating asteroid], but we're not 100 percent sure when."[10][11] Also in 2018, physicist Stephen Hawking, in his final book Brief Answers to the Big Questions, considered an asteroid collision to be the biggest threat to the planet.[12][13][14] In June 2018, the US National Science and TECHNOLOGY Council warned that America is unprepared for an asteroid impact event, and has developed and released the "National Near-Earth Object Preparedness Strategy Action Plan" to better prepare.[15][16][17][18][19] According to expert testimony in the United States Congress in 2013, NASA would require at least five years of preparation before a mission to intercept an asteroid could be launched.[20]

ANSWER:

EXPLANATION:

RETARDATION

Answer:

A SLANT LINE

Explanation:

Hey, since velocity is a straight that is a constant let velocity be c

Then DISTANCE =velocity X time

Distance =ct

Therefore distance time GRAPH will be a slant line PASSING through ORIGIN

1 /

1 /

1 /

1 /

1 /

1/___________________

IF YOU LIKE MY ANSWER THEN PLEASE BRAINLIEST IT :)

Answer:

Because MEASURING time we can't FIND any object speed and not develop any INSTRUMENT.

Answer:

The value of ELECTROSTATIC force constant is DEPENDENT upon the medium in which the CHARGED objects are immersed. In the case of AIR, the value is APPROXIMATELY 9×109 N.

Answer:

I think it's 24m/s...

Explanation:

LET HALF the DISTANCE be x

total distance= x+x=2x

first time interval=x/20 s

second time interval=x/30 s

av velocity= total distance/ total time

= 2x/x/20+x/30

simplify and you'll GET 24m/ s

Answer:

2:1ratio

Explanation:

because if it will 10 km in full speed so it will cover 800KM but it TRAVELS 400KM only so 800:400 so 2:1

Answer:

Velocity

EXPLANATION:

velocity is the physical quantity which CHANGES during uniform CIRCULAR motion

(ucm).

ANSWER:

if u know about kirchhoff LAW then u can solve itself

ANSWER:

Rent=R1+R2+R3

Rnet=3+6+4=13

ANSWER:

#Initial VELOCITY , u =80km/h

#Final velocity, v =50km/h

#Time taken ,t=4 SEC

We know that ,

ACCELERATION, a=V-u/t

a= 50 - 80 /4

a=-30/4

a=7.5m/s^2.✔️

Hope it helps

please mark brainliest ✌️✌️✌️

@physicsgirl57♥️♥️

the BALL STRIKE the GROUND with 20 m/s.

when angle is at straight line it's 0° as shown in figure 1 and in figure 2 you can SEE how a 45° angle appears

plzzz MARK this as a brainlist answer!!!!

ANSWER:

EMF of SOURCE is not GIVEN here....

ANSWER:

Your answer is in FULL DETAIL in the PHOTO.

Answer:

IDK about the PAST but there is an estimation that after a couple of years pluto can BANG with uranus as there is point where both can meet and there an estimation..

Answer:

no

Explanation:

it is huge BODY of fibre to SLOW down the speed

if it were a STREAMLINE body , all the parachuters would have DIED

F hathon MUFFIN hisab LBJ SEEM gundam

EXPLANATION:

DERIVE an EXPRESSION for electric field due to electric dipole along its equatorial axis at a PERPENDICULAR distance r from its centre. ... In this case we determine the electric field at a point P which is located on the perpendicular BISECTOR of the line joining the two charges. Let the distance of P from this line be y.

Answer:

LENGTH= 60 m

Breadth= 35 m

Area of a RECTANGLE= Length×breadth

= 60 m×35 m

= 2100 m^2

Thus, the area of the rectangle is 2100 m^2.

there is no any TOUGH QUESTIONS PHY is a EASY SUB

Answer:

here u go

Explanation:

nth term of go = ar^N-1

SUM of n terms = a(r^n -1)/r-1 (if r >1)

a(1-r^n)/1-r. (if r<1)

sum of infinite terms of gp = a/1-r

geometric mean = √ab

if n geometric means are INSERTED between a and B the

r = (b/a)^1/n+1

sum of all geometric means between a and b = ( √ab )^n

hope this helps u ....

mark me as BRAINLIEST.....

FOLLOW ME.....

ANSWER:

DISTANCE = πr and DISPLACEMENT =πr

ANSWER:

PLEASE REFER to the ATTACHMENT

Answer:

Acceleration = 324 km/hr^2

Distance TRAVELLED = 18 km

Explanation:

given:- U = 0 (INITIAL velocity)

,v = 108km/hr (final velocity)

and ,t = 20min. = (1/3)hr. (time TAKEN)

So, by applying v = u + a x t

where, a = acceleration

=> 108 = 0 + a x (1/3)

=> a = 108 x 3

=> a = 324 km/hr^2

Now, by applying

S = u x t + (1/2) x a x t^2

where , S = distance travelled

=> S = 0 + (1/2) x 324 x (1/3)^2

=> S = 324/18

=> S = 18 km ....

Answer:

MANURE

Explanation:

1)It is obtained by the nature/natural substances formed by the decomposition of plant and animal remains.

2)It Increases plant nutrients and also maintains the fertility of soil for long time.

3)Manure cannot provide specific type of

3)Manure cannot provide specific type ofmicronutrients instead it provides nutrients like NITROGEN (N), phosphorus (P) and potassium (K) and humus.

In addition, manure returns organic matter and other nutrients such as calcium, magnesium and sulfur to the soil, building soil fertility and quality.

4)Microbes are needed for the formation of manure. (for the decomposition of plant and animal remains)

5)manure improves water retention of soil, ensures proper and aeration.

6) Manures are absorbed slowly by plants.

7)There are no side effects of manure.

8)They are need to be supplied in large amount as they contain relatively less nutrients.

9)Manure is inconvenient to STORE.

10)Manure is relatively cheaper than fertilizers and can be prepared in fields.

FERTILIZER

1)Fertilizers are manufactured in factories through chemical procedure.

2)Increases soil fertility in short time but It is harmful for the soil in long run.

3)manure can provide specific nutrients but

cannot provide humus to the soil.

4)Microbes are not needed for the formation of fertilizers

5)After the continuous use of fertilizers, soil loses water retention and proper aeration capacity and thus LEADS to soil pollution.

6)fertilizer is absorbed very fastly by plants.

7)There are some side effects of fertilizers.

8)fertilizers are need to be supplied in less amount as it contains very high amount of nutrients and may pollute the soil.

9)fertilizer is convenient to store.

10)fertilizer are very costly and cannot be prepared in fields.

<STRONG>Answer:

Quantum gravity(QG) is a field of theoretical physics that seeks to describe gravity according to the PRINCIPLES of quantum MECHANICS. Here, quantum effects cannot be ignored, such as near compact astrophysical OBJECTS where the effects of gravity are strong.

Answer:

AIR has weight and a column of air extending vertically over a given area on earth’s surface exerts pressure. The atmospheric pressure is measured as a force per unit of area and most common unit of measuring the air pressure is millibar. The instrument used for measuring pressure is Barometer. Some barometers are calibrated to show pressure in MERCURY inches. At constant temperature of 0°C and latitude of 45°, 1049 millibar is equal to 31 inches of mercury. Barograph is used to take continuous readings of air pressure.

Measuring Atmospheric Pressure

Bar is a unit of pressure equal to 100 kilopascals and roughly equal to the atmospheric pressure on Earth at sea level. Other units derived from the bar are the megabar (symbol: Mbar), kilobar (symbol: kbar), decibar (symbol: DBAR), centibar (symbol: cbar), and millibar (symbol: mbar or mb). Bar is NEITHER an SI unit nor a CGS unit. 1 bar is 1% smaller than the atmosphere (symbol: atm), which now is defined to be 1.01325 bar exactly. One millibar is also equal to 1000 dynes per cm².

ANSWER:

NEGATIVE ACCELERATION is KNOWN as Retradation.