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A geographic information system (GIS) is a computer system for capturing, STORING, checking, and displaying data related to positions on Earth's surface. By RELATING seemingly unrelated data,GIS can HELP individuals and ORGANIZATIONS better understandspatial patterns and relationships

100J because we KNOW it STORES 100j PER 2CM

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Calculate the speed and period of revolution of a SATELLITE orbiting at a height of 700 km above the earth's surface. ASSUME the orbit to be circular. TAKE radius of the earth as 6400 km and g at the surface of the earth to be 9.8 m/s2.

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Power of 4 device = 4×500
=> 2000 WATTS or 2 KILO watt

Energy used = power× time
=> 2 × 10= 20 kwh.

Dear student,
Please find below the solution to the asked query:



the magnetic force on a moving CHARGE q with velocity v m/s perpendicular to its motion is qvb

now qvb is the force that provides the REQUIRED centripetal force,
hence qvb = mv​2/r

or r = mv/qb

now, the time period is 

T =2π​r/v

or T= [2π​(mv/qb)]/v = 2πm/qb

Kinetic energy of the particle will be mv2/2, as motion of OBJECT under magnetic field does not change the MAGNITUDE of the velocity.




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Centriphugal FORCE or centriphugation

A handle or a knob is fixed at the free end of a door so that we may open and close the door easily.If you place the knob in the centre
of the door, you won’t get enough
leverage to open it easily. ALSO, it
would be difficult to lock as part of
the mechanism sits in the door
frame - a LONG way from the centre.
You can find out more about fitting
doors by visiting the Wonkee
Donkee XL Joinery door
information section.

if the RAY is ALONG the normal then it will get DEFLECTED in the same direction of the source as ∠i=∠r

if angle i is 90 along (as normal is also 90)

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here's your ANSWER

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Force is in the form of push and pull. A force is the unit per AREA. there are TWO types of force -:
⭕contact force

⭕non-contact force
The forces that ACTS when two surfaces comes in contact to each other. for example -friction and gravitational force
______
Friction
______
Friction is a contact force that opposes the relative motion. There are three types of friction.

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here's your answer


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The 77% of Russia is situated in Asia and other part in Europe. MOSCOW is the capital of Russia.

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here's your ANSWER

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microscope is what that is USED to see the objects that cannot be seen by our naked EYES. The microscope consisting of one convex LENS that is used to produce an enlarge image is called simple microscope.

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Energy TRANSFORMATION, also termed as energy CONVERSION, is the process of changing energyfrom one of its forms into another. In physics,energy is a QUANTITY that provides the capacity to perform many actions—some as simple as LIFTING or warming an object.

Accepted Answer: We sprinklepowder on carrom board to make the SURFACE of the board smooth. This reduces the friction between the surface of the carrom board, the striker and the coins. As a result, the coins and the striker can MOVE EASILY on the carrom board.

Bank storage. The TERM 'Bank storage' as it applies to the AREA of the WEATHER can be defined as ' In hydrologic terms, water absorbed and stored in the void in the SOIL cover in the bed and banks of a stream, lake, or reservoir, and RETURNED in whole or in part as the level of water body surface falls'.

Remote Sensing And ITSCOMPONENTS. Remote sensing is the science of acquiring information about the EARTH's SURFACE without actually bein g in contact with it.REMOTE SENSING AND ITSCOMPONENTS: ... However thatremote sensg also INVOLVES thesensing of emitted ENERGY and the use of non-imaging sensors.

Balancing canal depth COMES when the canal is in partially embankment and partially in cutting.It is the depthof the canal(H) which gives equal amount of filling(i.e earth required for FORMATION of BANKS) and cutting(i.e earth from DIGGING). For a GIVEN cross-section of a canal, it has only one balancing depth.Oct 22, 2015

Sanitation literally means measures necessary for IMPROVING and PROTECTING health and well being of the people. Sanitation is any system that promotes PROPER disposal of HUMAN and animal WASTES, proper use of toilet and avoiding open space defaecation.

A type I ERROR (or error of the first kind) is the incorrect rejection of a true null hypothesis. Usually a type I error leads one to conclude that a supposed effect or relationship exists when in fact it doesn't. Examples of type I errors include a test that shows a patient to have a disease when in fact the patient does not have the disease, a fire alarm going on indicating a fire when in fact there is no fire, or an experiment indicating that a medical treatment should CURE a disease when in fact it does not.

A type II error (or error of the second kind) is the failure to reject a FALSE null hypothesis. Examples of type II errors would be a blood test failing to detect the disease it was designed to detect, in a patient who REALLY has the disease; a fire breaking out and the fire alarm does not ring; or a clinical trial of a medical treatment failing to show that the treatment WORKS when really it does.[3]

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A Polar SATELLITE Launch Vehicle (PSLV) launched the IRNSS-1I navigation satellite from the SATISH Dhawan Space Centre in Sriharikota for the Indian Space Research Organisation (ISRO). The official launch time was 0404 Indian Standard Time on THURSDAY, APRIL 12 (6:34 p.m. EDT or 2234 GMT on Wednesday, April 

The primary objective of IRS-1C was to provide SYSTEMATIC and repetitive ACQUISITION of data of the EARTH’s SURFACE under nearly CONSTANT illumination conditions.[1]









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Principle of COMPASS Surveying. THEPRINCIPLE of Compass Survey is Traversing; which involves a series of CONNECTED lines the magnetic BEARING of the lines are measured by prismatic compass and the DISTANCE (lengths) of the are measured by chain. Such survey does not require the formulation of a network of triangle.

Because we FLOAT on WATER
our LOAD is CARRIED by water

NO , ITS ANGULAR MOMENTUM IS CHANGING....

THIS IS BECAUSE ORBIT IS ELLIPTICAL IN SHAPE. .

ANGULAR MOMENTUM OF AN ORBIT CAN BE CONSTANT ...IF ITS SHAPE IS CIRCULAR...


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(a) The magnitude of the impulse imparted to ball by the wall is mv as the momentum of ball is mv and by NEWTON's THIRD law EVERY action has an EQUAL and opposite reaction.

(b) The direction of force on wall due to ball is the direction of moving ball.

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It will be reduced as HALF of thier WEIDHT for each ONE of them in both moon and MARS

Let a particle moves with CONSTANT speed v m/s in TANGENTIAL direction of circular path of radius r. if ANGULAR velocity of particle is
then RELATION between v, r and
is given by
hence, tangential velocity of particle is the cross product of angular velocity and position vector of it.

magnitude of tangential velocity is given by

where is angle between and r.

Answer:

Above attachement is your answer

Explanation:

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DO SOME FLASH CARDS AND FIX IT IN YOUR BEDROOM AND YOU CAN SEE IT WHENEVER YOU DO NOT GET SLEEP.

Philosophical STUDY of NATURE and the PHYSICAL universe that was dominant before the development of modern SCIENCE

F=2000 Hz
w.l=0.72 m

speed = F×w.l
= 1440

now DIST. = 500 m
time = d/speed
500/1440
=0.347 SEC

In fact an aneroid BAROMETER is found to be less accurate when compared with a mercury barometer.But the advantage in an aneroid barometer is the quick and easy handling of the instrument.It can be carried from one place to ANOTHER without any apprehension of damage to the instrument whereas this is not possible in the case of mercury barometer.Further it can be FITTED to an aircraft to sustain variations and ROLLS of the aircraft whereas a mercury barometer cannot be fitted like this.But an aneroid barometer is subject to ERRORS owing to temperature and hystersis lag and these cannot be fully eliminated.

-------------------0. U = MGL KE=0


|
|
|
|
|
0 KE = 1/2 mv² U= 0
since only conservative FORCE is ACTING on bob
sum of initial energy is conserved

=> mgl = 1/2 mv²
=> V =√(2gl)

The FREQUENCY of SOUND DETERMINED it's PITCH.

<P>sorry for blurry pictures....by USING the concept of CONSERVATION of angular momentum about point p.....ang the torque of mg will be be not taken in this case because mg is not a impulsive FORCE....

an ELECTRIC clock in which the current is regulated and accuracy maintained by the REGULAR vibrations of a QUARTZ crystal.

Newton's Second Law

While Newton's first law looks at how force AFFECTS the motion of objects, the second law dives into how we define force itself. Newton's second law states that an object's acceleration (or a) is directly proportional to the net force (or F) acting on it and inversely proportional to its mass (or m). Unlike Newton's first law, there is no shorthand name for this one, but it is better known by its mathematical formula, which you can see:



However, it is far more common to see it written in the FORM where it has an equal SIGN instead of a proportional sign, which you can see:



This formula tells us that a force acting upon an object is equal to that object's mass multiplied by the acceleration caused by the force. You'll find this formula consistently used throughout your studies of introductory physics.

One excellent example of Newton's second law at work in our lives is our weight. You might not usually think about it this way, but your weight is actually the gravitational force of the EARTH acting on you. Your weight is equal to your mass multiplied by the acceleration due to gravity, 9.81 m/s.

According to me. , the coulomb force between two CHARGES q1, q2 is:

F =kq1q2/r^2

k = coulomb’s constant = 1/4πεε0

ε0 = permittivity of EMPTY space

ε = relative permittivity of the material in which the charges are immersed

r = distance between charges

for vacuum ε=1 and for air also, to a very good approximation ε=1.

For water , at room temperature ( 20C) ε = 80.

Therefore, the force between the charges q1, q2 will be 1/80 its value in air.

Hence FW, the force in water will be:

so Fw = 80/80 = 1N.

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Electrode refers to a conductor by which electrical currents can travel. In fact, these LITTLE guys are sometimes referred to as electrical conductors. You can find them in a wide variety of electrical devices such as batteries, electrolytic cells, or electron tubes.

You might be wondering what is an electrode made of. Well, what do you suspect is a great conductor of electricity? Metals are great conductors of electricity. In fact, metals are commonly used in the production of electrodes. The type of metals used range from copper to zinc to gold and platinum.

Think of an electrode as a bridge that forges a PASSAGEWAY for electrons to travel on. Electrons are the guys zipping around the nucleus of an atom. Technically, they're subatomic particles with a negative electric charge.

Atoms have protons too, which have a positive charge. Atoms with the same number of protons and electrons are calledneutral, because their charges cancel each other out.

However, if the number of electrons are different from the proton count, the atom will either be negative or positive. We can call that atom an ion. There are two different types of ions:

Cations are positively charged ions.Anions are negatively charged ions.

Anodes and Cathodes

Similarly, there are two different types of electrodes:

An anode is an electrode that attracts anions.A cathode is an electrode that attracts cations.

A helpful way to remember the relationship between ions and electrodes is to know that 'cat' in cathode refers to cation. The first letter 'a' in anode refers to anion.

When you connect both electrodes together, you can FORM an electrical circuit. An electrical circuit is the path by which electrons flow. Thus, if the electrode is our bridge that electrons travel on, the circuit is the road MAP electrons use to determine where to travel. In electrical devices, electrons will always flow from the anode to the cathode.

How Does an Electrode Work?

In describing how an electrode works, there are two different electrical devices we can use as examples. The first example involves our battery. As shown in this diagram, a battery has two terminal ends, the cathode and anode. Two different processes occurring inside the battery contribute to the flow of electrical current. First, chemical reactions are FIRING off within the battery. Second, we have electrons zooming around from the anode and cathode to generate electricity for a device.

Flowers produce CHEMICALS in their bloom, providing a fragrance NECESSARY for their survival. Alluring to pollinators and turning away predators, these plants use SPECIFIC chemistry in mixing essences to further their existence.

A butterfly drawn towards a flower due to alluring scent.

Why Do Flowers Produce Scents?

Flowers produce a unique floral musk to signal pollinators that the flower is ready for fertilization. Pollinators such as hummingbirds, bees and butterflies are drawn into the scent and, by going from flower to flower, complete the process of transferring pollen to an egg, creating fertile seeds. If a herbivore animal approaches a flower, however, an unpleasant scent of cardiac and steroidal glycosides is produced within the bloom, acting as the flower's form of protection against being eaten.

How Is a Flower's Scent Created?

A flower's scent is created within the petals where essential oils are stored. When there is warm weather, the oils combine and evaporate, producing a unique scent for every flower to attract pollinators. The most common OIL scent given off by flower is methylbenzoate.

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The following are some of the ways firefighters use to combat fire;
1)They use chemical retardants to put out fires,depending on the types of fire & where it is located i.e fire extinguishers which contain chemical retardants.
2)They ALSO cut fire lines to create fire breaks & this form is usually applied in the forest fires.
3)They also use air SUPPORT to PREVENT extensive damage of forest fires.

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