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It states that MOMENTUM is DIRECTLY proportional to the force applied on the body...
means that MAX force creates max momentum....
momentum indicates by 'P'
formula : p= mv
m stands mass
v stands velocity...

Assuming the conditions to be NON resistive, the speed of a moving body in a circular RADIUS will be CONSTANT following the UNIFORM Circular Motion, which SAYS the speed of a body in a circular motion will be constant.

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U=20m/s
v=0m/s
accleration is not GIVEN so we TAKE 9.8m/s^ and it will be NEGATIVE as it is in UPWARD direction (opposite) .
a=-9.8m/s^2
v^2-u^2=2as
0^2-20^2=2×(-9.8)s
-400=-19.6s
400/19.6=s
s=20.4m
v=u+at
0=20+(-9.8)t
-20=-9.8t
20/9.8=t
2.0sec
total time is 2+2 =4 seconda

Hii
actually MASS is EQUAL to the PRODUCT of volume to density.
hence,
m= v×d
m=190×4
m=760 ans.

hope it help U

ANSWER:

Explanation:

Work done=Dot product of force and displacement

W=6(5-0)+3(1-3)+1(6-2)=28N

Hey mate...
UNBALANCE bcoz for every step we MOVE our LEG ...
balance bcoz it is like a PAIR we are walking...

Current flows because of flow of electrons. When electrons flow they collide with other particles present and ALSO OVERCOME FRICTION of other particles. Overcoming friction dissipates ENERGY which is felt in form of heat or we can say which results in heat production.

Hope it will be helpful.

THANKS for asking the question!

ANSWER::

As the small body of MASS m is started with a velocity V in the horizontal DIRECTION.

So , the total initial momentum at initial position in horizontal direction will continue to remain same as the total momentum at point A on bigger BLOCK is in horizontal direction.

So,

mv + M x 0 = (m + M)V

V = mv / (M+m)

Hope it helps!

Answer:

EXPLANATION:

The particle will be REFLECTED back by an angle of 60 DEGREES,by law of reflection.

No particles of PLASMA STATE has the highest KINETIC ENERGY

We can say there is an UNBALANCED force when MAGNITUDE of force from 1 direction is GREATER than or smaller than the other force applied from the other direction.

It is HARDER to open door by applieng force on HINGE.
HOPE it helps U

The formula is GIVEN by:
V= r×w
where,v=linear velocity of body
r = RADIUS of circular path
w(Omega)=angular velocity.
By USING this equation you can easily convert angular velocity to linear velocity.
..............thanks for asking...............
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Answer:

EXPLANATION:

Speed of bus is (480/12)=40 km/h

Speed of train=9/5*(40)=72km/h

Speed of car=13/18*(72)=52km/h

Distance=52*5=260km

The DISTENCE between two latitude and LONGITUDE points in meters is 90 DEGREES

The SPEED of TRAIN is 36

u = 0 m/s

V = 72 km/h = 72*5/18 m/s

= 20 m/s

t = 5 s

As v = u + a t

so, 20 = 0 + a*5

so. a = 20/5 = 4 m/s^2

Also, s = u t + 1/2 a t^2

so, s = 0 + 1/2 * 4 * 5^2

so, s = 50 m

Hence, the ACCELERATION is 4 m/s^2 and

DISTANCE tavelled by the train is 50 m.

IF I'LL GIVE YOU THE QUESTION IN PHYSICS FOR FORCE AND LAWS OF MOTION YOU WILL GO MAD

What is the QUESTION??????

Application of refraction of light is a tool which helps us in understanding the basic concepts about the refraction of light and its application. First of all let us understand the basics of refraction of light and then we will STUDY about application of refraction of light.

Generally refraction of light occurs when the waves travel s from one MEDIUM to another medium, with some refractive index and it generally enters other medium at oblique angle. There are various phenomenon’s associated with the refraction. Refraction of light has a major scope in case of optics and in the field of technology. For example, lens uses the basics of refraction of light to form an image of an object for various purposes, such as magnification. The other example is prism which also uses refraction to form a spectrum or band of colors from incident ray of light. In optical illusion and mirage, refraction generally plays a big role.

Various scientific things have been explained with the help of refraction. Day to day phenomenon’s are also explained with the help of refraction. One example which we are most familiar is ‘Twinkling of stars’. This phenomenon is explained in this way. The atmosphere which is blanket of earth actually consists of various layers of varying densities. It is because of change in temperature and pressure. The phenomenon is when the ray o f light enters into the layers of continuously increasing densities they are being refracted because of change in medium. In this complete PROCESS, ray of light follows curve path and hence it reaches to us. But because of the wind and currents, the density of the layer continuously increases and hence in turn the density of each layer goes on changing from layer to layer. And because of this at very small interval of time, the position of the image of start keeps on changing, and hence it ultimately produces the twinkle effect. This is all BASED on the concepts of refraction.

The same principle can be used to explain the apparent sunrise or sunset. The basic concepts of refraction are used to describe the complete process. The other applications of refraction are as follows:

1) SPEAR fishing, in which spear fisherman use a smart trick to catch the prey. The spear fisherman generally aims at a point below where the fish seems to be. This is because light actually changes its direction from one medium to another of different densities. This change is basically known as refraction.

2) Bending of stick in water. In water, a stick engrossed in water generally appears bent and small when viewed at an angle from above. This is also because the rays of light actually travel from water medium to air medium and hence in bend away from the normal at the surface.

3) A coin appears raised in water. The same explanation exists.

From above discussion we have seen that refraction of light has been used to understand the scientific facts in almost all fields. This is all about application of refraction of light

Electrical resistivity (also known as resistivity, SPECIFIC electrical resistance, or VOLUME resistivity) is a fundamental property that quantifies how strongly a given material opposes the flow of electric current. A low resistivity indicates a material that readily allows the flow of electric current. Resistivity is commonly represented by the Greek letter ρ (rho). The SI UNIT of electrical resistivity is the ohm-metre (Ω⋅m).[1][2][3] As an example, if a 1 m × 1 m × 1 m solid cube of material has sheet CONTACTS on two OPPOSITE faces, and the resistance between these contacts is 1 Ω, then the resistivity of the material is 1 Ω⋅m.

When we dust or BEAT a carpet we provide motion to the carpet which was earlier in rest. the dust PRESENT on it was also in rest. But as we provided motion to the carpet by beating, the carpet MOVES but the dust tries to maintain its inertia of rest. So the dust doesn't move with the carpet and FALLS down DUE to gravity.

Hope it helps
thanks

#peace!

I do not UNDERSTAND your QUESTION

I HOPE it can HELP you and MAKE it BRAINLIST

The CURRENT FLOW will be 0.1 A

Let Q =CHARGE
N=NUMBER OF ELECTRONIC
T=TIME
when CURRENT FLOW in a conductor in SPECIFIC time..
I=Q\T

THANKS for asking the question!

ANSWER::

Let the mass moving with a velocity X with respect to the engine.

Velocity of the mass with respect to earth is (x-v) towards right.

Centre of mass of V = 0 (initially at REST)

Therefore , 0 = -Mv + m(x-v)

Mv = m(x-v)

mx = Mv + mv

x = [v(M+m)/m]

x = [1 + M/m] v

Hope it helps!

advantages....... ____________You do not have to remember to TAKE a pill every day. You only have to THINK about contraception every 2-3 months.

It does not interfere with sex.

It can be used when breastfeeding.

Periods often stop completely, which is perfectly safe.
hat are the disadvantages of the contraceptive injection?

What is the contraceptive injection?

The contraceptive injection contains a progestogen hormone called depo medroxyprogesterone acetate (DMPA). Progestogen hormones are very similar to a woman's own hormone called progesterone. Depo-Provera® is the brand used most often and it is given every 12 weeks. Sayana Press® is very similar to Depo-Provera® and also contains DMPA. Noristerat® is a brand which is RARELY used. It is just used when very effective contraception is needed but only for a few months - for example, after a partner has had a vasectomy. The rest of this leaflet is about the injections that contain DMPA.

The contraceptive injection is sometimes called a LARC. This stands for long-acting reversible contraceptive. You can read about the other LARCs that contain progestogen in our separate leaflets called Contraceptive Implant and Intrauterine System. There is also a separate leaflet on the LARC which doesn't contain any hormone, called the Intrauterine Contraceptive Device (The Coil).

How does the contraceptive injection work?

The progestogen is injected into a muscle or under the skin and then is gradually released into the bloodstream. It works mainly by stopping the release of the egg from the ovary (ovulation). It also thickens the mucus made by the neck of the womb (cervix) which forms a mucous plug. This stops sperm getting through to the womb (uterus) to fertilise an egg. It also makes the lining of the womb thinner. This makes it unlikely that any egg that has managed to be fertilised will be able to implant in the womb.

How effective is the contraceptive injection?

Dr Rosemary Leonard

It is very effective. Between 2-60 women in every 1,000 using it will become PREGNANT after two years. Compare this to when no contraception is used: more than 800 in 1,000 sexually active women who do not use contraception become pregnant within one year.

What are the advantages of the contraceptive injection?

You do not have to remember to take a pill every day. You only have to think about contraception every 2-3 months.

It does not interfere with sex.

It can be used when breastfeeding.

Periods often stop completely, which is perfectly safe.

It may help some of the problems of periods, such as premenstrual tension, heavy, painful periods  and endometriosis.

It can be used by many of the women who cannot take the combined pill.

It is not harmful to women with sickle cell disease and may even reduce the pain of a sickle crisis.

It may be taken by women who are on medication that would interfere with other forms of hormonal contraception - for example, medications for epilepsyor HIV.

It may reduce the chances of getting cancer of the ovary or cancer of the womb (endometrial cancer)

If you want to stop using it you don't have to go back to your doctor or nurse to have it removed; you just have to wait for it to wear off.

disadvantages_________

The injection cannot be removed once given. Any side-effects may last for more than 2-3 months, until the progestogen goes from your body.

As the injection is long-acting, it may take some time after the last injection for you to become FERTILE again. This time varies from woman to woman. Some women may not ovulate for 6-8 months after the last injection. Rarely, it can take more than a year before fertility returns. This delay is not related to the length of time you use this method of contraception.

Answer:

From the QUESTION we know that the velocity of the man is 5 km/hr and we know that the rain is FALLING at an angle of 45 degree with the horizon THUS the value of tan45 will be velocity of the rain to the velocity of the man.

Hence, the value of tan45 is 1 so, we will get that the velocity of the man is EQUAL to the velocity of the velocity of the rain thus the velocity of the rain will also be 5 km/hr.

Daylighting is the use of windows and SKYLIGHTS to bring SUNLIGHT into your home. Today's HIGHLY energy-efficient windows, as well as advances inlighting design, reduce the need for artificial lighting during daylight hours without causing HEATING or cooling PROBLEMS.

ANSWER:

EXPLANATION:

No ZERO error

Precision and accuracy

No WEAR and TEAR

Let the total DISTANCE be x.
TIME taken in TRAVELLING 2x/5 = 2x/5v1.
Time taken in travelling 3x/5 =3x/5v2.
Total time taken = 2x/5v1 + 3x/5v2 =(2xv2 +3xv1)/5v1v2.
Average speed = Total distance/Total Time
Therefore Av. speed = (x × 5v1v2)/(2xv2 + 3xv1)
=5v1v2/(3v1 + 2V2).

D) the SPEED and MAGNITUDE of ACCELERATION are constant.

Hope it HELPS!!

What are the STATEMENTS?

REVERSED CARNOT Cycle.

here is your ANS BUDDY

M= .5 kg
u= 10

initial momentum = mv
=.5×10=5m/sec

final velocity = 0
therefore, momentum = 0×.5=0

it's best answer and correct ALSO.

I'm sure
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GIVEN,

MASS = 60 kg.
Acceleration = 2 m/s.

= 60/2 = 30 kg m/s.

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