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Here your answer
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icap + jcap + kcap is the AREA vector.
I is on the X axis.
j is on the y axis.
k is on the z axis.

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Hope it HELPS you

Speed is the scalar QUANTITY and VELOCITY is VECTOR quantity... also speed is distance per TIME and velocity is DISPLACEMENT per time..mark me as brainlest pls

Given :-

Horizontal distance = 1.6 m

As we KNOW that, Horizontal distance is called as Range.

R = u²/g = 1.6 m

u²/g = 1.6

u² = 16

U = √16

u = 4 m/s

UY = u sin45° (Range is maximum when Ø = 45°).

uy = 4/√2

T = 2uy/g

T = 2(4/√2)/10

T = 4/5√2 s

Total distance travelled in 10 s = 1.6 × 10 × 5√2/4

D = 4 × 5√2

D = 20√2 m. Answer.......

If the HALF JOURNEY of BALL is 0.5 secs , so 0.5 + 0.5 = 1
so the total height of the tower is 1 meter ....

Milk will. by PASSING a torch LIGHT through it , it will SHOW the path of light in milk

.

A sharp knife has a very THIN edge to its blade. A sharp knife cuts objects better because due to its very thin edge, the FORCE of our hand falls over very small area of the OBJECT producing a LARGE pressure. And this large pressure cuts the object easily. On the other hand, a blunt knife has a THICKER edge. A blunt knife does not cut an object easily because due to its thicker edge, the force of our hand falls over a larger area of the object and produces lesser pressure. This lesser pressure cuts the object with difficulty.
hope it is helpful pls mark as brainliest

Chill !

No need to worry at all. And FIRST you don't have to Learn the dimensions here at all. Because Rattufication(mugging) doesn't work here.

So Dimensions are the very BASICS of measurements in physics. You need to CALCULATE them. The very best METHOD to calculate them is from the SI units.

For Eg :. We will be calculating the Dimensions of Acceleration.

The SI UNIT of Acceleration is m/s^2

Hence it's Dimensions would be L^1T^-2

Hope this is helpful to you!!!

The ANSWER is theta=cos INVERSE -17/18.

No it will not FORM a REAL IMAGE

Colloidal refers to ITEMS of a SMALL size that are floating in a medium of ONE of three substances: a solid, a LIQUID, or a gas. Colloidal particles can be suspended in a substance just like their own make-up or a different substance with the exception of gases. Gas particles will not suspend in another gas.

Colloids can be expressed in a word which is ‘colloid’ or by the phrase colloidal solution. When using the word ‘colloid’ for the purpose of chemistry and the different elements that make up the field the word colloid can be used as either an ADJECTIVE, thereby stating that the item in question has the correct properties to be considered colloidal, or, a noun to mean the object in question is a colloidal solution.

As DIPLACEMENT is the shortest distance between the FINAL and the INITIAL POINTS.

P=I^2*R
I^2=P/R
=18/3
=6
I^2=6
I=root6 AMPERE

We have just seen that a long straight wire carrying current i1  PRODUCES a B field which forms concentric circles around the wire whose magnitude a distance "d" from the wire is given by 



with direction given by "the" right-hand-rule.

If a second parallel wire carrying a current i2 is PLACED a distance "d" from the first, it will feel a force due to the presense of B1.  The force felt by a length l2  of this second wire is



so that



with a direction such that i2 is attracted towards i1 as shown at right.
Then the force per unit length on i2 is given by



 Note that if we reverse the ROLES of i1 and i2 we obtain the same expression for F1/l1 .  That is, i1exerts a force on  i2 and  i2  exerts an equal, but opposite, force on i1  as expected from Newton's Third Law ("Action EQUALS Reaction").

The above analysis applies for parallel currents - the two wires are attracted to each other.  If one of the currents is reversed, so that the currents are "anti-parallel", the force per unit length is unchanged, but the force acting on each wire is reversed.  In other words the wires are now repelled from each other.

 "Like currents are attractive, UNLIKE currents are repelled".  Note that this is opposite to the behavior of point electric charges

Definition of the Ampere

The unit of electric current, the Ampere, is defined using the force between parallel wires carrying current.

"The Ampere is that current which when flowing in two infinite parallel wires one metre apart produces a force between them of 2 x 10-7 N/m"

Yes it is TRUE that copper conducts electricity through ELECTRONS, whereas salt solution conducts electricity through ions. The common thing is any material with free movement of electrons conducts electricity. ION is an atom or MOLECULE has total no. of electrons not equal to total no. of protons.

INERTIA of electricity:Self induction is that phenomenon in which a change in electric current in a coil produces an induced emf in the coil itself. Now, it is also known as inertia of electricity as for if we were to change electric current through a current carrying coil it will tend to oppose any further change in its emf.

Electromagnetic Induction :Electromagnetic or magnetic induction is the production of an electromotive force across an electrical conductor in a changing magnetic field. Michael Faraday is GENERALLY credited with the discovery of induction in 1831, and James Clerk Maxwell mathematically described it as Faraday's law of induction.

Self Induction:Self INDUCTANCE is defined as the induction of a VOLTAGE in a current-carrying wire when the current in the wire itself is changing.

Moment of Inertia: a quantity expressing a body's tendency to resist angular acceleration, which is the sum of the products of the mass of each particle in the body with the SQUARE of its distance from the axis of rotation.

Here is your ANSWER....

It is 9.8 m/s^2




.....

Dynamics. ... Dynamics can be subdivided into KINEMATICS, which DESCRIBES MOTION, without regard to its causes, in terms of position, velocity, and acceleration; and KINETICS, which is concerned with the effect of FORCES and torques on the motion of bodies having mass.




hope it helps...


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A RACING slick (also known as a "slick tyre") is a type of tyre that has a smooth TREAD used mostly in AUTO racing. The FIRST production "slick tyre" was developed by M&H Tires in the early 1950s for use in drag racing.



hope it helps u...


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S= ?

V=346 KM/ h

T=2s

V=S/T

346=s/2sS=346×2

=692

S=692

Here is your ANSWER !!
PLS MARK BRAINLIEST

To find the number of protons, electrons and neutrons in an atom, just follow these easy steps:

Step 1 - Gather Information

The first thing you will need to do is find some information about your element. Go to the Periodic Table of Elements and click on your element. If it makes things easier, you can select your element from an alphabetical listing.

Use the Table of Elements to find your element's atomic NUMBERAND atomic weight. The atomic number is the number located in the upper left corner and the atomic weight is the number located on the bottom, as in this example for krypton:



Step 2 - The Number of Protons is...

The atomic number is the number of protons in an atom of an element. In our example, krypton's atomic number is 36. This tells us that an atom of krypton has 36 protons in its nucleus.

The interesting thing here is that EVERY atom of krypton contains 36 protons. If an atom doesn't have 36 protons, it can't be an atom of krypton. Adding or removing protons from the nucleus of an atom creates a different element. For example, removing one proton from an atom of krypton creates an atom of bromine.

Step 3 - The Number of Electrons is...

By definition, atoms have no overall electrical charge. That means that there must be a balance between the positively charged protons and the negatively charged electrons. Atoms must have equal numbers of protons and electrons. In our example, an atom of krypton must contain 36 electrons since it contains 36 protons.

Electrons are arranged around atoms in a special way. If you need to know how the electrons are arranged around an atom, take a look at the 'How do I read an electron configuration table?' page.

An atom can gain or lose electrons, becoming what is known as an ion. An ion is nothing more than an electrically charged atom. Adding or removing electrons from an atom does not change which element it is, just its net charge.

For example, removing an electron from an atom of krypton forms a krypton ion, which is usually written as Kr+. The plus sign means that this is a positively charged ion. It is positively charged because a negatively charged electron was removed from the atom. The 35 remaining electrons were outnumbered by the 36 positively charged protons, resulting in a charge of +1.

Step 4 - The Number of Neutrons is...

The atomic weight is basically a measurement of the total number of particles in an atom's nucleus. In reality, it isn't that clean cut. The atomic weight is actually a weighted average of all of the naturally occurring isotopes of an element relative to the mass of carbon-12. Didn't understand that? Doesn't MATTER. All you really need to find is something called the mass number. Unfortunately, the mass number isn't listed on the Table of Elements. Happily, to find the mass number, all you need to do is round the atomic weight to the nearest whole number. In our example, krypton's mass number is 84 since its atomic weight, 83.80, rounds up to 84.

The mass number is a count of the number of particles in an atom's nucleus. Remember that the nucleus is made up of protons and neutrons. So, if we want, we can write:

Mass Number = (Number of Protons) + (Number of Neutrons)

For krypton, this equation becomes:

84 = (Number of Protons) + (Number of Neutrons)

If we only knew how many protons krypton has, we could figure out how many neutrons it has. WAIT a minute... We do know how many protons krypton has! We did that back in Step 2! The atomic number (36) is the number of protons in krypton. Putting this into the equation, we get:

84 = 36 + (Number of Neutrons)

What number added to 36 makes 84? Hopefully, you said 48. That is the number of neutrons in an atom of krypton.

The interesting thing here is that adding or removing neutrons from an atom does not create a different element. Rather, it creates a heavier or lighter VERSION of that element. These different versions are called isotopes and most elements are actually a mixture of different isotopes.

If you could grab atoms of krypton and count the number of neutrons each one had, you would find that most would have 48, others would have 47, some would have 50, some others would have 46, a few would have 44 and a very few would have 42. You would count different numbers of neutrons because krypton is a mixture of six isotopes.

In Summary...

For any element:

Number of Protons = Atomic Number

Number of Electrons = Number of Protons = Atomic Number

Number of Neutrons = Mass Number - Atomic Number

For krypton:

Number of Protons = Atomic Number = 36

Number of Electrons = Number of Protons = Atomic Number = 36

Number of Neutrons = Mass Number - Atomic Number = 84 - 36 = 48

MATH is HARD don't ASK to me......

Hope this helps.
If we place a hot body in contact with a cold ONE, the former becomes colder and thelatter becomes warmer. Therefore, we can say, a TEMPERATURE change has occurred between the two bodies and finally a thermal equilibrium is established. We say that ACERTAIN QUANTITY of heat has passed from the hot body to the cold one. There is a
heat flow
or
heat TRANSFER
between the two bodies. Count Rumford (1753 – 1814) and Sir JamesPrescott Joule (1818 – 1889) established that this heat flow is an
energy transfer.

One of the most commonly used units of mass density is gram per cubic centimeter, or g/cc. This is because PURE water has a mass density of 1 g/cc. It turns out that 1 mL of LIQUID is equal to 1 cc of volume. So it is ALSO POSSIBLE to EXPRESS the mass density of water as 1 g/mL.

Y=x²+x
y=x(x-1)
y²=x²(x-1)²>=0
therefore,
y²>=0
y>=0
so the MINIMUM VALUE of y is 0

T = 2u/g


200/10
20 s

u = 0 m/s

v = 180 km/h = 180*5/18 m/s

= 50 m/s

t = 20 s

a) a = ?

As v = u + a t

or, 50 = 0 + a*20

a = 50/20 = 2.5 m/s^2

b) avg. velocity = ?

avg. velocity = (u + v) / 2

= (0 + 50)/2

v avg. = 25 m/s

c) s = ?

as s = ut + 1/2 at^2

so, s = 0 + 1/2 * 2.5 * 20^2

so, s = 500 m

A ball of mass m moves perpendicularly to wall with a speed v and sritkes it .so, momentum of ball before striking,

after striking the ball in wall it REBOUNDS with same speed in the opposite direction.so, momentum of ball after striking the wall

according to NEWTON's 2nd law,
rate of change of momentum is known as force.

here negative sign shows that force acts away from the wall [ because we assume INTIALLY, velocity of approaching the wall is positive then, velocity of SEPARATING the wall]

C.oxygen________________

A body which moves on a CONSTANT speed and velocity i CALLED constant ACCELERATION

GIVEN in the QUESTION :-

Refer to the attachment

Also r₁ = θc

therefore

r₂ = 45° - θc

Then changing on the terms.

sinr₂ = SIN(45°- θc)

Now , the refractive INDEX μ

μsinr₂ = sini₂ = 1/√2 ------(i)

  &  ----(ii)

from EQ (i) & (ii)

Now, on solving

4/μ² = 1- 1/μ²

μ = (5)¹/²

Hope it Helps :-)

Given CONDITIONS ⇒

Force or the tension in the ROPE (F) = 30 N

Since, the mass of each block is same.

∴ m₁ = m₂ = m₃ = 10 kg.

Total mass of all the three blocks(m) = m₁ + m₂ + m₃

= 10 + 10 + 10

= 30 kg.

By the NEWTON's second law of the motion,

Force = mass × acceleration.

∴ Acceleration = Total Force/Total Mass

⇒ a = 30/30

∴ a = 1 m/s².

Hence, the acceleration of the each block is 1 m/s².

Now, we also need to calculate the tension in the rope.

∴ Tension in FIRST Rope (T₁) = Mass × acceleration

= 10 × 1

= 10 N.

Tension in second rope (T₂) = Mass of two blocks × acceleration.

= 20 × 1

= 20 N.

Hope it helps.

Because of LAWS of newton
Force can CHANGE the MOTION into REST

In SERIES COMBINATION, the current(I) remains same.

So , by using the FORMULA V=IR

I=V/R

I=9/12

I=0.75A

Hope it HELPS.

The m.k.s UNIT of ACCELERATION is m/s^2