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It is 2 or 3.......?..

Hi There!

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It should be ML^2 T^-1. As planks constant,h = E/neu

And, As energy,E=ML^2T^-2

And the DIMENSION of frequency, v=T^-1.

Therefore E=h*neu. So,

Hence, h=M¹L²T⁻¹

We KNOW that, Dimension Formula of Couple (TORQUE) is also M¹L²T⁻¹

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Thanks!

Hope This HELPS!

#Ben4Brainly

Seat belts are designed to retain people in their seats, and so prevent or reduce injuries suffered in a crash. They ensure that as LITTLE contact is MADE between the OCCUPANT and vehicle interior as possible and significantly reduce the RISK of being thrown from a vehicle.

According to Newton's first law, an object in motion CONTINUES in motion with the same speed and in the same direction unless acted upon by an unbalanced force. ... Any passengers in the car will also be decelerated to rest if they are strapped to the car by seat belts.

mark as brainlest please

Because in DC the ENERGY is EXHAUSTED during tranfer of ELECTRICITY

Upward Acceleration=a
DOWNWARD Acceleration=g
Since lift is moving up so upward acceleration is GREATER than downward acceleration hence, we have NET acceleration=(a-g) ACTING upward, So
weight, W=mass of the man× (a-g) acceleration

✴Acceleration:-

[1] It always Positive.
[2] Velocity KEEPS increasing.
[3] Initial velocity is less than FINAL.

✴Deacceleration:-

[1] It always Negative.
[2] INCREASED velocity start decreasing.
[3] Final velocity is less than Initial.

There are four TYPES of OPERANT Conditioning: positive REINFORCEMENT, NEGATIVE reinforcement, PUNISHMENT and extinction.

Answer:2.56 percent

Explanation:

It is because no DISPLACEMNT takes PLACE as the gormula of work is force into displacement....

as displacement is 0 work is also 0



hope it helps

pls MARK as brainliest

Hi FRIEND!

NEWTON's third law of motion:
"For EVERY action, there is an equal and OPPOSITE reaction."

The statement means that in every INTERACTION, there is a pair of forces acting on the two interacting objects.

Hope you found my answer useful .

WORK done=force × displacement

1000J=force×10

Force=100N

Force=mass×acceleration

Here...acceleration=acceleration due to GRAVITY i.e.9.8m/s^2 but for sake of SIMPLICITY g=10m/s^2

Therefore
100=mass×10

Mass=10kg

@skb

HEY FRIEND...........

HERE IS UR ANSWER.........

If TOTAL distance and total displacement is same .. i.e. direction will not change

HOPE IT HELPS............PLS MARK MY ANSWER AS BRAINLIEST.........

Science
The fundamental technical advantages of such a system are better ACCURACY, precision, ... effectively PROCESS sensed values in CREATING rich and useful applications and KNOWLEDGE

When the fireman holds the HOSE, it has an opposite REACTION according to the THIRD law of motion. ... Thus, due to the opposite reaction of the WATER with HIGH velocity a fireman finds it difficult to hold the hose.

Force FORMULA. The formula for forcestates that force is EQUAL to mass multiplied by ACCELERATION. So, if you KNOW mass and acceleration, just multiply them together and now you know the force!

NEWTON's SECOND law of motion states that " The RATE of CHANGE of the linear momentum is directly proportional to the impressed force and takes the DIRECTION in which the force acts".
Hope it helps

I)first connect TWO resistor in parrlell and other one in series in respect to other
But here the values of R1 = R2 = RE = 6 Ohms

So the resutant of two resistors in parallel is (let them be R1 & R2) R1*R2/R1+R2.

Also if same value of resistance are CONNECTED in parallel then resultent will be resistance value ÷ no. Of resistors in parallel.

Here the result of two 6 ohms parallel resistors is 3 ohms and this THREE ohms is connected in series with 6 ohms so the result will 9 ohms.

ii MAKE two resistor in series and one inparllel respect to other

Here Rs=6+6=12 Ω let third resistance R3=6 Ω

Two 6 Ω resistors are in series. Their equivalent resistance will be the sum
∴ the total resistance is 4 Ω  .

Ip/Is=Ns/Np=es/ep
4/Is=280/140
4/2=2amp

HEY MATE HERE YOUR ANSWER IS...

Time is relative and DOES stop in our universe. Photons are frozen in time, from their VIEWPOINT. As mind-bending as it seems, to a photon no time has PASSED between leaving a distant star and reaching your retina.

Second, time is but another dimension.
If a multi-dimensional being had a look at our universe, it COULD SEE all points in time all at once, one next to another, like frames on a film reel. Past, present, future, all of it would be there. The very idea of time would make no sense to that being.

With that out of the way - if time stopped for 5 seconds, curious things could happen depending on which frame of reference you decide to take....

HOPE IT WILL HELP YOU..✌ ✌
IF SO THAN MARK IT AS BRAINLYT...

MASS of an object does not because mass is the QUANTITY of matter PRESENT in the BODY

The PERCENTAGE of child LABOUR in INDIA is almost 20%.

please MARK as the brainliest answer.

Here are the formula that you should use:

dv = gdt

ds = t dv = gtdt

To get the values of V and S, integrate the equations. Thus:

V = gt + C; where g is the acceleration of GRAVITY which as you said shouh be taken as 10m’SEC^2, t is the TIME duration equal to 1 second and V = the velocity as the ball hits the ground. When t = 0, V = 0 hence the CONSTANT of integration C is 0. Thus the equation for finding V is;

V = gt.

S = (1/2)gt^2 + C; where S is the HEIGHT of the fall which is the height of the table when t = 1 sec and C is the constant of integration. When t is 0, S is 0 hence C is 0 thus

S = (1/2)gt^2

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.

In GENERAL, metals feel colder or hotter to the touch than other materials at the same temperature because they're good thermal conductors. This means they easily transfer heat to colder objects or absorb heat from warmer objects. Your skin can't actually detect the temperature of other objects—it only senses its own temperature. When you touch a piece of metal that is colder than your hand, your fingers rapidly LOSE heat and feel cold—and the opposite happens when you touch metal that is hotter than your hand. Thermal insulators like plastic and wood don't transfer heat as easily.

Some metals may also get hotter faster compared to other materials. Metals tend to have a SMALL specific heat capacity, which is a measure of how much energy needs to be added to a material to raise its temperature by 1 degree. A material with a SMALLER heat capacity will reach a higher temperature after the same amount of energy is added compared to a material with a larger heat capacity. POLYETHYLENE, a common plastic, has more than twice the heat capacity of most metals. Water also has a very large heat capacity.

cylinder in V GROOVE.

Let US assume that the angles A made by inclined surface in groove with the vertical are both same.   Let the cylinder rest symmetrically in the groove.   Surface ST is horizontal.  Normal reactions are N1 and N2.   Also, frictions f1 and f2 are equal if the groove surface is of same kind on both sides.

The cylinder is in  a static equilibrium.   BALANCE forces in vertical direction and horizontal direction.

    N1 cos A - f 1 Sin A  - N2 Cos A + f2 sin A = 0

    =>  (N1- N2) Cos A = (f1-f2) Sin A   --- (1)     f1 <= mu N1    and    f2 <= mu N2.     Substituting that in (1),   we get     Tan A  <=  1/mu     N1 Sin A + N2 Sin A + f1 Cos A + f2 Cos A = W      (sin A + mu Cos A) (N1 + N2) = W          --- (2)

moments of the forces wrt  Q:         SQ * N1 = QT * N2               =>    N1/ N2 = QT / SQ     --- (3)

Substitute in (2) to get:     N2 (1+ QT/SQ) =  W / (sin A + mu Cos A)          N2 = W *QS /[( sinA + mu Cos A) (Qs+QT) ]          N1 = W * QT / [( sinA + mu Cos A) (Qs+QT) ]

If QS = QT  then,   N = W / [ 2 (sin A + mu Cos A) ]

The FORCE MAKES the THREAD BROKEN

Let the INITIAL velocity =u
final velocity = v

v= 0 m/s
s = 500 m 

2gs = v SQUARE - u square

2 (-10) 500 = u square
u= 100 m/s


v= u +at
0=100 - 10 t
t = 10 s

It RAINS ,only if we ADD it to BLACK CLOUDS .......

To REDUCE the impulse.
impulse= FORCE × time.
impulse is DIRECTLY PROPORTIONAL to time.
mark BRAINLIEST.

Let the INITIAL velocity =u
final velocity = V

v= 0 m/s
s = 500 m 

2gs = v square - u square

2 (-10) 500 = u square
u= 100 m/s


v= u +at
0=100 - 10 t
t = 10 s

total time taken = 20 SEC.

Mirage is EXAMPLE of internal ref.
internal reflection angle of INCIDENCE mut me CRITICAL angle

Beams in which one end is FIXED and another end is free is CALLED cantilever BEAM

U=0
t= 4s
g = 9.8 or 10 m/s² I will take 10 (ACCELERATION due to GRAVITY)
using-
s=ut+1/2at²
s=0×4+1/2×10×4²
s=5×16
s=80 m
so height of the BUILDING is 80 m

Hope it helps:)
Brainliest PLS

Speed of train = 43.2 KMPH = 43.2 × 5/18 = 12 m/s
Length of train = 12 × 15 = 180 m

To cross the platform of 180 m, train has to travel, 180+180 = 360 m

Time REQUIRED to cross platform
= 360/12 = 30 seconds

When rays of light are INCIDENT on a lens or a mirror, they refract/reflect to a certain point on the principal axis. This point is CALLED the FOCUS of the lens/mirror.

This point can be anywhere on the principal axis, depending on how the rays are initially travelling.

 

Principal focus is a special CASE of focus wherein the rays are travelling parallel to the lens/mirror and then refract/reflect to a particular point on the axis.

Generally the rays are parallel if the object is at INFINITY.

Length of TRAIN= 54×5/18×30=3×5×30= 450 m
time=( length of train+ platform)/s=( 450+180)/54×5/18
= 630/15 = 42 SEC Will be the ANSWER

I THINK it will DECREASE but i am not CONFIRM

ʜᴇʟʟᴏ ᴍᴀᴛᴇ!

First, we know that

Momentum = Mass × velocity OR

p = mv

Now,convert g into kg

10g = 0.01 kg
400g = 0.4 kg

In first case p = (0.01)(400)
Momentum = 4 kg m/s

In seconf case, convert km/hr into m/s

= 90* 5/18 m/s or 25 m/s

Momentum = (0.4)(25)
p = 10 kg m/s

On comparing we can CLEARLY see that
4 kg m/s < 10 kg m/s

Hence, CRICKET ball of 400g thrown with SPEED of 25 m/s will have more momentum.

Hope it HELPS