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If an OBJECT CHANGES its POSITION with RESPECT to TIME

When CAR is ACCELERATING it's SPEED is INCREASING and when retarding it's speed is decreasing. Both are OPPOSITE of each other

S=ut+1/2(at^2)
s=50*7 + (1\2)(-10*49)   (ACCELEARTION due to GRAVITY is in opposite DIRECTION to                                            DISPLACEMENT .thus a is -ve) 
s=350-5*49
s=350-245
s=105 m

When a WHEEL is MOVING on a SURFACE it EXPERIENCE a ROLLING friction.
hope it helps✌

A gravitationally BOUND system has a LOWER (i.e., more negative) gravitational potential energy than the SUM of its PARTS — this is what keeps the system aggregated in accordance with the minimum total potential energyprinciple. where G is the gravitationalconstant, M is the mass of the sphere, and R is its radius.

Hey!!!!!!!

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For a CONVEX Mirror,

=> h = 5cm

=> u = -10CM

=> R = +30cm

=> f = +15cm

=> v = ?

=> h' = ?

Thus by mirror formula

=> 1/f = 1/u + 1/v

=> 1/v = 1/f - 1/u

=> 1/v = 1/15 + 1/10

=> 1/v = 5/30

=> v = + 6cm

=> m = -v/u

=> m = -6/-10

=> m = +0.6

Thus the IMAGE will be virtual, erect and diminished.

Also, m = h'/h

=> 0.6 = h'/5

=> h' = +3CM

Thus the image will be formed 3cm from the mirror.

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Hope this HELPS you

NaOH+HCl - NaCl+H2O
2 come under H i THINK U know
it HELP full for u

Hello FRIEND...!!

ACCELERATION = velocity / time taken

Given that,

Velocity = 10 m/s

Time = 5 second.

THEREFORE,

Acceleration = 10 / 5 m/s^2 .

Acceleration = 2 m/s^2 .

_______________________

HOPE it helps...!!

Electromagnetic - relating to the INTERRELATION of electric currents or fields and magnetic fields.


Matter waves - a hypothetical wave ASSOCIATED with the motion of a PARTICLE of atomic or subatomic size that describes effects such as the diffraction of beams of PARTICLES by crystals. Expand. Also called matter wave. Origin of de Broglie wave.

The FORMULA for the number of IMAGES when two plane mirrors are inclined to each other at an angle is given by

No of images = 360/N - 1
where n = the angle of inclination

So, the no of images FORMED = 360/60 - 1
= 6-1 = 5

Therefore, 5 images will be formed.

Unit of etropy = Joule
Unit of WORK = Joule
Unit of ACCELERATION = meter PER SECOND SQUARED..

Newton - the SI unit of force. It is equal to the force that would give a MASS of one kilogram an ACCELERATION of one metre per second per second, and is equivalent to 100,000 dynes.

watt - the SI unit of power, equivalent to one joule per second, corresponding to the rate of consumption of energy in an electric circuit where the potential difference is one volt and the current one ampere.

joule - The joule (pronounced DJOOL) is the standard unit of energy in ELECTRONICS and general scientific applications. One joule is DEFINED as the amount of energy exerted when a force of one newton is applied over a displacement of one meter.

Heya !!


here is your ANSWER !!


total higest RESISTANCE =>

it will come in series


then , equivalent resistance =>


4 Ω + 8Ω + 12 Ω +24 Ω => 48 Ω


now ,



lower resistance is => connecting them in parallel


=> 1 / 4 Ω + 1 / 8 Ω + 1 / 12 Ω + 1 / 24 Ω


=> 1 / Rp = 2 Ω


hence ,


the height resistance is 48 Ω


and Lowest resistance = 2 Ω .


hope it helps you dear a lot !!!!


thanks !!

Here is the SOLUTION. CHECK it.

Thus, FUR BECOMES POSITIVELY charged. When anebonite rod is rubbed with fur the rod gets negatively charged because the friction between the fur and the rod MAKES the ebonite rod to gain electron from the fur. This is because, electrons in fur are LESS tightly bound than the electrons in theebonite rod .

Centripetal force is measured in Newtons and is calculated as themass (in kg), multiplied by TANGENTIALVELOCITY (in METERS per second) SQUARED, divided by the radius (in meters). This means that if tangentialvelocity doubles, the force will quadruple

The WORK of PHONOGRAPH is ATTRACTS DUST PARTICLES.

Here is you answer ☺️

A 1-farad capacitor can store one COULOMB (coo-lomb) of charge at 1volt. A coulomb is 6.25e18 (6.25 * 10^18, or 6.25 BILLION billion) ELECTRONS.One AMP represents a rate of ELECTRON flow of 1 coulomb of electrons per second, so a 1-farad capacitor can hold 1 amp-second of electrons at 1volt.

Thanks for askingthis question. Below is the list of sound PRODUCING agents along with theirintensities in db. This will be definitely helpful for you.

Noise Source(Intensityof Sound-db)

Threshold of hearing(0)

Breathing(10)

Sound of Leaves in TREES(20)

Whispering(30)

Normal Conversation(30-40)

Homes and Resturaunt (40-50)

LOUD conversation(65)

Traffic Noise(60-90)

Heavy Trucks(90-100)

Thunder STORM(110)

Rock Music (120)

Jet take off 100 m disance (120)

Jet Engine 25 m distance (140)

1) Concave Mirror

2) Flame PLACED 15 cm distance from its POLE so , object distance , u = -15cm and distance from its pole so , image distance , v = -60

Now , MAGNIFICATION = -image distance / object distance = - v/u
= -( -60 cm ) / ( -15 cm ) = -4
Hence , linear magnification of the image is -4

A kink is a divice in a thermometer , which BREAKS the mercury as it CONTRACTS this STORING the HIGHEST temperature

Pressure is inversely PROPORTIONAL to the SURFACE AREA , THUS wider tyre means more surface area and hence LESS pressure.

- The Physics CLASSROOM UNIFORM circular motion can be described as the motion of an object in a circle at a constant speed. As an object moves in a circle, it is constantly changing its DIRECTION. At all INSTANCES, the object is moving TANGENT to the circle.



hope it is useful to you

An ORDER of magnitude is an approximate measure of the size of a number, equal to the LOGARITHMS (base 10) rounded to a whole number. Differences in order of magnitude can be measured on a base-10 logarithms scale in “DECADES” (i.e., factors of ten).EXAMPLES of numbers of different magnitudes can be found at Order of magnitude (number).

ANSWER:

For example, you are in a CAR and it goes with the velocity of 50 m/s to the EAST, then a truck PASSES you with a velocity of 60m/s to the east. ... Velocity of the moving objects with RESPECT to other moving or stationary object is called “relative velocity” and this motion is called “relative motion”

Explanation:

Because the objects are so SMALL and they have less mass, the gravity of earth also acts on them. But if you PUT two tennis ball in SPACE they will get attracted towards each other and they will collide in 3 days. Because there is no gravity ACTING on them.

It is because sheet of paper has a larger surface AREA which causes more DRAG . And the SHAPE also matters as CRUMPLED BALL has a aerodynamic shape it lessen the drag.

I THINK your ANSWER is KINETIC ENERGY

Given,
INITIAL velocity(u)= 0 km/s
final velocity( v) =40km/s
TIME taken(t)=10s
so, accleration(a)=v-u/t
= 40-0/10
= 40/10
=4 m/s^2...

U(INITIAL VELOCITY) =20km/hr
v(FINAL velocity) =50km/hr
t(TIME)=10s=10/(60×60)=1/360

a=(v-u)/t
a=(50-20)/(1/3600)
a=30×3600
a=108000km/hr

A deadbeat galvanometer has as low a mass as possible in the moving COIL. It is used to measure current. They have low mass so they respond more quickly.

ABallistic galvanometer CONSISTS of an artificially increased mass or a combination of a moving coil and a MECHANICAL integrator. eg. The analog VU meterwhich is found on traditional audio consoles. The mass of the needle integratesthe signal which makes it respond more slowly.

Hello dear.....here is your answer

An ANTIGEN is not necessarily a toxin. So an antitoxin can be an antibody, but not all antibodies  are antitoxin. Anti-toxin  is something that neutralizes the toxins released by bacteria. ... They can be formed against the cellwall of bacteria as well as one's own ANTIGENS (AUTOIMMUNITY).

hope it helps....plz mark as BRAINLIEST

Hi friend, Harish here.

Here is your answer.

What are the laws of reflection?

→ It states that the angle of incidence is equal to the angle of reflection.

→ And it happens in the same plane.

Is it valid for irregular surfaces ?

→ The laws of reflection are also valid for the irregular surfaces also.

 We may think that it is not . But here is the reason for it.

Reasons : ( Pls refer to the images also)

Let us take an irregular surface. And let a light source FALL on it.Then, It will GET reflected.

 But Actually it seems to be that the angle of incidence is not equal to the angle of reflection and does appear to follow . But the truth is, it does.

Let us have a magnified IMAGE of an irregular surface on which the light falls and gets reflected.

Now draw a tangent to the surface on which the light incidence and also mark the normal. Now, when we SEE we get an amazing result where the angle of incidence is equal to angle of reflection.

And it is clearly understood that all happens on the same plane. Hence it FOLLOWS the law's of reflection.  

(Refer to the image ).
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Hope my answer is helpful to you.

Displacement per UNIT TIME is called velocity.
Speed in a PARTICULAR guven direction is called velocity.
SI unit is m per sec.
It is a vector quantity.
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Mgh=200 (m=1,g=10,H=(20)2/2.10)=20)