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Vcm = m1V1 +m2v2/(m1+m2) = (5*14+2*0)/(5+2) = 70/7 = 10 m/s

why v2 is 0?

because its not given any velocity , simple.

Please post the complete question.

Net force acting on the system will be 5g -4g = (5-4)*10 = 10N

now total mass of system = (5+4) + 9kg

so, acceleration = F/m = 10/9 m/s².

thank you!

50 seconds is the maximum time

Chromosome is thread and string like structure in nucleus. They carry the genetic code that is passed to offspring.

bhai answer me toh yeh Option hi nhi he answer toh a option he

The type of change that occurs in the change of phases of moon is a physical change.

calculation lada

calculation not have

The series is Paschen. All the wavelength in Paschen series lies in the infrared region of the spectrum.

work done is 5J

100 वोल्ट का ही होगा क्योंकि सभी संधारित का मान एक ही है अतः जो पहले संधारित के प्रति होगा वही सभी के प्रति होगा

Thecerebral crus(crus cerebri) is theanterior portion of thecerebral pedunclewhich contains the motor tracts, travelling from thethalamusto theponsand spine. The plural of which iscerebral crura.

Thecerebral peduncle, by most classifications, is everything in themidbrain except thetectum. The region includes thetegmentum,crus cerebriandpretectum.

Hence, it is a part of cerebral peduncle.

(a) Hunger is partly controlled by a part of your brain called the hypothalamus

(b) By two distinct brain centres—the vomiting centre and the chemoreceptor trigger zone both located in the medulla oblongata.

(c) Activities picking up a pencil are possible due to cerebellum.

(d) It's a lot smaller than the cerebrum at only 1/8 of its size. But it's a very important part of the brain. It controls balance, movement, and coordination (how your muscles work together). Because of your cerebellum, you can stand upright, keep your balance, and move around.

(a) sensation of feeling full

the answer could be option 3

2) - 1.3 is the correct answer

living thingsnaturemachineswind

wrong answer

option 1,zero is the right answer

option (1) zero is the correct answer

Option A (zero) is the correct answer for the following question.

(1) zero is the right answer of the following

A i s the correct answer

therefore, answer is

Cell phonesFlashlights\The LilyPad-based D&D Dice GauntletFlat-screen TVs (AC goes into the TV, which is converted to DC)Hybrid and electric vehicles

in only one direction....with a magnitude of time independent

okay thanks

The tractors have broad tyres so that there is less pressure on the ground and the tyres do not sink into comparatively soft ground in the fields

To avoid sinking ofwheelsin soft soil because due to biggerwheelscontact surface area increases. As pressure=force/area so as a increases, p decreases so less pressure force is applied on field. ... 3.Vehicles are of different types(frontwheel,rear wheel, All-wheel), in thisTractoris aRear-wheeldrive.

good

Initial reading = 1052 kmFinal reading = 1088km

Total distance traveled =Final reading -Initial reading =1088-1052

time = 30 min = 0.5 hr

Velocity = distance / time = 36/0.5 = 72 km/hr = 20 m/s

Potential difference = W/Q = 240/20 = 12V

Force is defined as

Force can be defined as a push or a pull that changes or tends to change the state of rest or uniform motion of an object or changes the direction or shape of an object.

Speed is the distance traveled per unit of time. It is how fast an object is moving. Speed is the scalar quantity that is the magnitude of the velocity vector. It doesn't have a direction. A higher speed means an object is moving faster.

Theweightof an object is the force of gravity on the object and may bedefinedas the mass times the acceleration of gravity, w = mg.

Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction on that system.

Atmospheric pressure is defined as the force per unit area exerted against a surface by the weight of the air above that surface.

One newton is the force needed toaccelerateonekilogramof mass at the rate of onemetre per second squaredin direction of the applied force.

wrong answer

The Ganga action plan was, launched by Shri Rajeev Gandhi, the then Prime Minister of India on 14 Jan. 1986 with the main objective of pollution abatement, to improve the water quality by Interception, Diversion and treatment of domestic sewage and present toxic and industrial chemical wastes from identified grossly polluting units entering in to the river. The other objectives of the Ganga Action Plan are as under.

Control of non-point pollution from agricultural run off, human defecation, cattle wallowing and throwing of unburnt and half burnt bodies into the river.

Research and Development to conserve the biotic, diversity of the river to augment its productivity.

New technology of sewage treatment like Up-flow Anaerobic Sludge Blanket (UASB) and sewage treatment through afforestation has been successfully developed.

Rehabilitation of soft-shelled turtles for pollution abatement of river have been demonstrated and found useful.

Resource recovery options like production of methane for energy generation and use of aquaculture for revenue generation have been demonstrated.

To act as trend setter for taking up similar action plans in other grossly polluted stretches in other rivers.

The ultimate objective of the GAP is to have an approach of integrated river basin management considering the various dynamic inter-actions between abiotic and biotic eco-system.

According to Dobernier triads , Atomic mass of middle atom of traid is airthmetic mean of other two atoms Atomic mass of Na = (6.9 + 39.1)/ 2 = 46/2 = 23u

Ions result from atoms or molecules that have gained or lost one or more valence electrons, giving them a positive or negative charge. Those with a negative charge are calledanionsand those with a positive charge are calledcations.Anion Cl- OH- (NO3)2-Cations K+ H+

this formula is to find the mode..where f1 is the frequency assumed, f0 is frequency before that and f2 is frequency after and h is class interval

it is incorrect statement, as 0 is absolute value having no quantity but infinity is not a exact value though we can consider its limit tending to larger value.

value of this is 8.86×10^-12

Since both lamps are connected in parallel hence the current will be divided based on their power rating.

For lamp 1 power is 100W= VI1

Here total pottential V = 220, and current

I = I1 + I2 .

I1= V/R1, I2= V/R2

Hence for 100= 220*220/R1

R1 = 484 ohm

Similarly R2 = 806.667 ohm.

force = mass*acceleration

= 150*4 = 600 kgm/s² = 600 N

work done = force*distance

= 600 N * 80 m

= 48000 Nm = 48000 J

v =u + at0 = 20 + ax10a = - 2 m/s^2 or 2 m/s^2 retardation.F= m x a = 2400 x 2 = 4800 N retardation force.

The little g stands for the amount of acceleration that is caused by gravity. This is what is commonly referred to as g-force. The big G is the Newton's gravitational constant, approximately 6.67 x 10-11N * m2/ kg2. The little m stands for the mass of the object, and the r stands for the radius of the object. Usually, you'll calculate the g-force for large spherical objects like planets. You can calculate the g-force that your own body puts out, by approximating your body with a little sphere. But you will see that this force is very tiny when you compare it to the g-force of planet Earth.