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Answer:

1.1sec

Explanation:

F = dp/dt

dt = dp/F

or

t = p/F

ANSWER:

it is CONSTANT for PARTICULAR MATERIAL...

ANSWER:

we have to PUT OBJECT b/w POLE and FOCUS.

ANSWER:

it is because of FIRST LAW of MOTION

Answer:

A DEVICE used to measure human or ANIMAL body TEMPERATURE is called clinical thermometer. ... The range of clinical thermometer is from 35° to 42°C. while that of laboratory thermometer is -10° to 110°C. Measuring SCALE or least count of both the thermometers are different.

• SI unit------------ JOULE (J)
• Other units FOOT-------pound, Erg
• In SI base units 1 kg+---⋅m2⋅s−2
• Derivations from other QUANTITIES----- W = F ⋅ s W = τ θ

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Answer:

meter rule is more accurate.

Explanation:

because the least COUNT of meter rule is 1 CENTIMETER.

ANSWER:

Mass never changes .

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ANSWER:

Because he INTRODUCED his own THEORY.

Answer:

Increasing force tends to increase acceleration while increasing mass tends to decrease acceleration. Thus, the greater force on more MASSIVE OBJECTS is OFFSET by the INVERSE influence of greater mass. Subsequently, all objects free fall at the same rate of acceleration, REGARDLESS of their mass.

EXPLANATION:

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Explanation:

How much force is needed to prevent a body of MASS 10kg from falling? F = W = ? HENCE 100N force will required!

Answer:

The WORK done by the moon during one CIRCULAR motion is zero as the force acting between the earth and moon is GRAVITATIONAL force is CONSERVATIVE in nature and the work done by conservative forces does not depends on path FOLLOWED. Also the force and displacement are perpendicular to each other. So, work done is zero.

ANSWER:

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Answer:

0.986

Explanation:

ANSWER:

in this H2O there is 2 molecules of HYDROGEN and 1 MOLECULE of oxygen

ANSWER:

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Answer:

O 09;($(KS)

EXPLANATION:

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Answer:

No there is no WORK done against the force of GRAVITY because the displacement and the direction of force are at an angle of 90°.

Explanation:

Walking involves doing the same amount of work against gravity as standing, because the weight of the BODY is the same.

So, the COOLIE does work against gravity equal to the total weight he is CARRYING (his body weight and the weight of whatever he is wearing, carrying, etc).

Answer:

a) 14 N to right

b) 5N to LEFT

c) 5 N upward .

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And these components are called Nutrients. These nutrients in our food are named as fats, carbohydrates, PROTEINS, vitamins and MINERALS. Also, food contains water and dietary fibres which are needed by human body. Carbohydrates acts as the main source of energy for the ACTIVE brain.

Addition, subtraction, multiplication and division are the four basic operations of elementary arithmetic. They are binary operators. They each take two numbers to PRODUCE a third number and are normally WRITTEN with infix notation: Addition.

In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or MOLECULE (or other physical STRUCTURE) in atomic or molecular orbitals. ... This is also USEFUL for describing the chemical BONDS that hold atoms together.


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EXPLANATION:

In this WAY we SOLVE your PROBLEM for you my FRIEND.

Answer:

TRIBOMETER

Tribometer is the correct answer. Tribometer is a DEVICE which is USED to measure static friction.

Explanation:

VELOCITY at just before TOUCHING GROUND (final velocity) is given by

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ANSWER:

SPEED is the DISTANCE covered by the object in unit time and average speed is the total distance covered by the object in PER total time

Answer:

In order to AVOID failures of this nature, we lubricate our machinery to minimize the resistance to movement, and as a RESULT, minimize the amount of HEAT produced. The heat that is produced by the equipment is transferred to the oil so that it may be removed by a lube oil cooler.

There are a lot of considerations that must be applied when selecting the type of LUBRICANT we need to use: viscosity, additives NEEDED, properties, etc.

Explanation:

The LAW of momentum conservation can be STATED as FOLLOWS. For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

Buoyancy. By use of an air bladder, usually integrated into the harness that HOLDS the air tank to the diver (an adjustable buoyancy LIFE jacket, or ABLJ, or stabilizer jacket), and lead weights, the diver is naturally negatively buoyant (SINKS). ... We float with a buoyancy control DEVICE (BCD) and sink with lead weights.

ANSWER:

You can say - (Fur)

Explanation:

which PROTECTS them from COLD

EXPLANATION:

ANSWER for you by the sherin

Answer:

Metals are often extracted from the Earth by MEANS of mining, RESULTING in ores that are relatively rich SOURCES of the requisite elements. ... When a metal ore is an ionic compound of that metal and a non-metal, the ore must usually be smelted (or heated with a reducing agent) to extract the pure metal.

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Answer:

• A) VELOCITY decreases from B to C
• B) AB shows no acceleration

Explanation:

1. From the picture it is clear that the SLOPE of the LINE in negative in the segment BC. So the velocity is decreasing.
2. The slope of the segment AB is 0, which means there is no change in velocity and thus acceleration remains zero.

EXPLANATION:

because CARPET SOAK DUST inside it and by FORCE them dust Comes out

ANSWER:

DEATH

EXPLANATION:

LINK for COVID-19 SYMPTOMS

Answer:

Hello my FRIEND

Explanation:

If there is no friction, then the moving objects NEVER stop. They are GOING on going. It is because friction PLAYS a vital role in stopping the moving objects

Answer:

any object can move on the SURFACE due to friction . Friction between tyres of vehicles and the road keeps them running safely and also HELPS to stop when brakes are applied, thus PREVENTING accidents. We can write on PAPER with pen due to friction between TIP of pen and paper.

Answer:

1. Computer Aided Manufacturing

2. The GRAPHICAL User Interface

3. INFORMATION and COMMUNICATION Technology

4. The Universal Mobile Telecommunication System

5. The Global System for Mobile Communication......

Answer:

His first law states that every object will remain at rest or in uniform MOTION in a STRAIGHT line UNLESS compelled to change its state by the action of an external force. ... The AMOUNT of the change in VELOCITY is determined by Newton's second law of motion.

ANSWER:

EXPLANATION:

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Answer:

1. SATYENDRA Nath Bose

2. homi j. bhabha

3. SUBRAMANYAM chandrashekhar

4. VIKRAM sarabhai

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Answer:

Explanation:We ASSUME the bullet leaves from rest. So the initial velocity will be, u=0m/s

Also given, FINAL velocity v=521m/s and distance TRAVELED d=0.840m

Let a be the acceleration of the bullet.

Using v

2

−u

2

=2AD, we get

(521)

2

−0

2

=

We know that INERTIA is directly proportional to the MASS of an object. (i.e. the more the mass an object has, the more its inertia will be)

So, we know that plastic is the lightest. Copper has more mass than plastic has and gold, being the densest, has the most mass.

So, we can SAY that among these three, gold would have the HIGHEST inertia.

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Answer:

Ohm 's LAW and Parallel Resistors

This implies that the total RESISTANCE in a parallel circuit is equal to the SUM of the inverse of each individual resistances. Therefore, for every circuit with n number or resistors CONNECTED in parallel, Rn(parallel)=1R1+1R2+1R3… +1Rn.

Explanation:

ANSWER:This is because of CONVECTION happens in LIQUID and CONDUCTION happens in solids

Explanation:

Answer:

The slope of a VELOCITY graph REPRESENTS the ACCELERATION of the object. So, the VALUE of the slope at a particular TIME represents the acceleration of the object at that instant.

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Answer:

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Explanation:

here is your answer dear

According to newton's second law

F= mv/t - mu/t or m(v-u)/t ---- 1

From 1ST eq of motion

a = v-u/t ------2

From 1 and 2 we can say that

F = ma

Newton's second law of motion DESCRIBES the relationship between force and acceleration. They are directly proportional. If you increase the force applied to an object, the acceleration of that object increases by the same factor. In short, force equals mass times acceleration.

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Answer:

Bell-jar experiment demonstrates that sound needs a medium for its propagation. Take an ELECTRIC bell and an air TIGHT glass bell jar CONNECTED to a vacuum pump. Suspend the bell INSIDE the jar, and press the switch of the bell. You will be able to hear the bell ring.

Explanation:

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