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Ok.....I AGREE that BULLET FIRED from GUN...


but..why r u sayimg this.

bcoz all are KNOWING that .....bullet can only fired with gun..

Answer:

An INSULATED rigid vessel contains some powdered coal and air at a pressure of 10 bar and a temperature of 200 C. The coal is ignited, there results a rise in the pressure and temperature of the contents of the vessel, the final temperature is 5380 C. Taking the vessel and the contents to be the system under consideration evaluate the increase in the energy of the system. b) The INSULATION is now removed. A HEAT transfer. of 50 kJ from the system causes the temperature to fall to the initial value, 200 C. Evaluate the increase in the energy of the system during this process. c) Taking the initial energy of the system 32 kJ, write down the energy values after process (a) and after process (b). On a warm summer day, a housewife decides to beat the heat by closing the windows and doors in the KITCHEN and opening the refrigerator DOOR. At first she feels cool and refreshed, but after a while the effect begins to wear off. Evaluate the situation as it relates to first law, considering the room including the refrigerator as the system.

Solution:

image

I don't KNOW the ANSWER BEHIND it

. .......HOPE this HELPS U to UNDERSTAND

.....................

A was DROPPED after 1 SECOND

A HORSESHOE magnet is a magnet made in the shape of a horseshoe. The magnet has two magnetic POLES close together. This shape CREATES a STRONG magnetic FIELD between the poles

That OBJECT can be called Radioactive element.
(Please MESSAGE if you WANT any further EXPLANATION)

The FORCE of on SPHERE X was more than sphere y

Here is UR ANSWER

SIR. NEIL ARMSTRONG

Heya buddy here is ur answer⬇️⬇️⬇️⬇️⬇️

✳️ Yeah......every current carrying CONDUCTOR creates a magnetic field AROUND it......no matter WHETHER it is AC or DC.

⭕️ HOPE IT HELPS ⭕️

⭐️ By CUTE Einstein ⭐️

That's logical, but not the case, for EARTH. INSTEAD, Earth has seasons because our planet's axis of rotation is tilted at an angle of 23.5 degrees relative to our orbital plane – the plane of Earth's orbit AROUND the sun. The tilt in the axis of the Earth is called its obliquity by scientists.
PLEASE PLEASE PLEASE MARK ME BRAINILIST

+|- +|-
+|- +|-
(positive end of battery) +|- +|- (negative end of battery)
+|- +|-
+|- +|-

WHENEVER a CAPACITOR is connected to battery, the plate of the capacitor connected to positive end of battery ACCUMULATES positive charge on the outside & then the INNER part of that same plate get negatively charged due to induction, after that SINCE the inner part of 1st plate have negative charge so it will induce positive charge on the inner part of the 2nd plate & at last the outer part of 2nd plate again get induced with negative charge because of the accumulated positive charge on the inner side of 2nd plate.

I think explanation is some what messy, so sorry for that, hope you will find it helpful!

Mickal Farday has GIVEN THEORY of emf.

Hope it will HELP you.. : )

Answer:

Answer's goona be OPTION d

Explanation:

you MAY FIND the SOLUTION below to be helpful

D → WEIGHT of liquid/Weight of WATER= (75G - 66G)/(75g - 70.5g)= ...

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Here is your answer.....sorry for BAD HANDWRITING....
so DISTANCE between OBJECT and MIRROR is 4m...and the dustance of the mirror from the image is 2m

s = ut+½at²

4.9 = 0+½gt²

4.9 = ½(9.8)t²

4.9 = 4.9t²

t² = 1

t = 1

Hence, the BODY will TAKE 1S to FALL.

Let m , V ρHe denote respectively the mass, volume and density of helium baloon and ρair be density of air

Volume V of baloon displaces volume V of air.

If the baloon rises to a HEIGHT H, from s = ut + (1/2)at2, we, GEAT h = (1/2)at2

So, as the baloon goes up, an EQUAL volume of air comes down, increase in PE and KE of the baloon is at the COST of PE of air [which comes down].

Dear Mandeisepha

As the question SAYS the ball touches the bird at one point.So that point must be the highest point attained by the ball.Because if it was not the highest point then the ball must touch the bird once again i.e when the ball is moving down.

LET v be the velocity of ball at the time of projection and θ be the angle of projection

then since horizontal component of velocity of ball = velocity of bird (since they both cover same horizontal distance in same time)

v cos θ =U -eq 1

futher h= v2 sin2 θ/2g

√h= v sinθ /√2g -eq 2

distance on GROUND where ball strikes=rnage of the projectile=v2 sin 2θ/g=2v2 sin θ cos θ /g

MULTIPLY eq 1 and eq 2

u√h=v2sin θ cosθ/√2g

2u√2h/√g=v2 sinθ cosθ*2/g=range

so ball will land on ground at a distance of 2u√2h/√g

Hshshbssvsvs s scscsvsgagagaa

HEY MATE HERE IS YOUR ANSWER:

13.8 billion YEARS ago, what we know as our Universe began with the hot Big Bang. It’s been expanding and cooling EVER since, up through and including the present day. From our point-of-view, we can look back some 46 billion light years in all directions, thanks to the speed of light and the expansion of SPACE. Although that’s a huge distance, it’s not infinitely large. But that’s merely what we can see. What lies beyond that, and could that be infinite? That’s what Buck wants to know, as he asks:

What I’d like to see discussed whether the universe is finite or infinite, and why it might be either. I’ve seen some limited discussion by [Sean CARROLL] and [LISA] Randall to the effect it could be either. We just don’t know.

It’s true that we don’t know whether it’s finite or infinite, but we know a lot more than what we see within the part that’s observable to us.

HOPE THIS HELPS YOU...
PLEASE MARK IT AS BRAINLIEST...

The magnetic FIELD PRODUCED by an ELECTRIC current is always oriented perpendicular to the DIRECTION of the current FLOW.

HELLO MATE
An informational constraint is an ATTRIBUTE of a certain type of constraint, but one that is not enforced by the database manager. NOT NULLconstraints PREVENT null values from being entered into a column. Uniqueconstraints ENSURE that the values in a set of COLUMNS are unique and not null for all rows in the table.
I HOPE THIS ANSWER IS HELPFUL

When ever there is CHANGE in MAGNETIC flux PASSING through a CLOSED coil an INDUCED e.m.f is produced in the coil

Hey dear ur answer is here....


presure is the force which applied the unit area of a container.Pressure is widely used in our daily life. From DRINKING STRAWS to flying an airplane, we are surrounded by pressure. When a VACUUM cleaner is SWITCHED on, it sucks out the air INSIDE the cleaner, causing the pressure inside the cleaner to become low.


pascalpound per square inchPapsi1 atm1.01325 ×10514.6961 Torr133.32219.337×10−31 psi6.895×103≡ 1 lbf/in2

At CENTRE of EARTH ,earth WEIGHT is 0

hope this helps you

please MARK as brainliest

It can also be defined as the range in which the amplitude of the carrier WAVE is varied by the MODULATING signal.

The percentage MODULATION LIES between 0 and 80%. Another WAY of expressing the modulation index is interms of the maximum and minimumvalues of the amplitude of themodulated carrier wave

Precision glass moulding is a replicative process that allows the production of high precision OPTICAL components from glass WITHOUT grinding and polishing. The process is also known as ultra-precision glass pressing.
Precision glass moulding is a replicative process that allows the production of high precision optical components from glasswithout grinding and polishing. The process is also known as ultra-precision glass pressing. It is used to MANUFACTURE precision glass lenses for consumer PRODUCTS such as digital cameras, and high-end products like medical systems. The MAIN advantage over mechanical lens production is that complex lens geometries such as aspheres can be produced cost-efficiently.

:-) hope it helps you..............


Please mark this answer as brainleist............

Very simple !!

having two LOGIC , see :-

Static friction help to oppose the motion (μs )

μk = kinetic friction



concept :- 1)
if external force is GREATER then static friction ( μs ) then body will move .






2 ) if μs < μk then the body will be accelerate .


3 ) if μs > μk then the body will not move ( remain at rest )


{ because static friction is more than kinetic friction }


now according to question :-

μs => 0.5

μk = .3


F = μs N ( mg )


=> 0.5 × 10× 10

=> 50N


see , that LHS force = 50N and RHS force = 51 N

so body will not will be in equilibrium , it STARTS moving towards right





we used 1 concept


hope it help you !!
==================================


for calculation of accelerate we use μk
because body have to move.





hope it help you !!

if any doubt kindly ask me in comment section

so thanks and all the best !!

100J because we kno WIT STORES 100j PER cm

Hi
Good morning

ANGLE of BANKING is the angle at which the vehicle is inclined about it's LONGITUDINAL AXIS with respect to the horizontal.
in the diagram show the angle of banking of the circular track.

May it is helpful for you

Have a nice DAY.

Forced is kgmetre per second SQUARE and VELOCITY is displacement by time their product is KG metre square for second CUBE

Rockets range in size from fireworks so small that ordinary people use them to immense Saturn Vs that once propelled massive payloads toward the Moon. The propulsion of all rockets, jet engines, deflating balloons, and even squids and octopuses is explained by the same physical principle: Newton’s third law of motion. Matter is forcefully ejected from a system, producing an equal and opposite reaction on what remains. Another COMMON example is the recoil of a gun. The gun exerts a FORCE on a bullet to accelerate it and consequently experiences an equal and opposite force, causing the gun’s recoil or kick.shows a rocket accelerating straight up. In part (a), the rocket has a mass m and a velocity v relative to Earth, and hence a momentum mv. In part (b), a time Δt has elapsed in which the rocket has ejected a mass Δm of hot gas at a velocity ve relative to the rocket. The remainder of the mass (m−m) now has a greater velocity (v+Δv). The momentum of the entire system (rocket plus expelled gas) has actually decreased because the force of gravity has ACTED for a time Δt, producing a negative impulse Δp=−mgΔt. (Remember that impulse is the net external force on a system multiplied by the time it acts, and it equals the change in momentum of the system. ) So the center of mass of the system is in free fall but, by rapidly expelling mass, part of the system can accelerate upward. It is a commonly held misconception that the rocket exhaust PUSHES on the ground. If we consider thrust; that is, the force exerted on the rocket by the exhaust gases, then a rocket’s thrust is greater in outer space than in the atmosphere or on the launch pad. In fact, gases are easier to expel into a vacuum.

image

Free-body diagram of rocket propulsion: (a) This rocket has a mass m and an upward velocity v. The net external force on the system is −mg, if air resistance is neglected. (b) A time Δt LATER the system has two main parts, the ejected gas and the remainder of the rocket. The reaction force on the rocket is what overcomes the gravitational force and accelerates it upward.

By calculating the change in momentum for the entire system over Δt, and equating this change to the impulse, the following expression can be shown to be a good approximation for the acceleration of the rocket.

a

=

v

e

m

Δ

m

Δ

t

−

g

where a is the acceleration of the rocket, ve is the escape velocity, m is the mass of the rocket, Δm is the mass of the ejected gas, and Δt is the time in which the gas is ejected.

I HOPE you GOT it
CHANGE in MOMENTUM is -3m/s

SIR, VISCOSITY is the PROPERTY of liquids in which the different particles can move with different VELOCITY with respect to their individual relative motion.

Because of this we can't LEFT DIVIDE and RIGHT divide MATRICES