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Ankit Singh 7 years ago

Stokes' law defines the drag force that exists between a sphere moving through a fluid with constant velocity. Viscosity is the resistance of a fluid to flow, and with increasing viscosity, the sphere's velocity drops. When the radius of the sphere increases, the drag force increases too.
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Dispersion force or London dispersion forces are a type of force acting between atoms and molecules. They are part of the van der Waals forces. U can get more about it in thermodynamics 2nd page.in vanderwaals force as u know there are 3 types of forces in that one type is dispersion force
What is dispersion forces.
Potasium have higher melting point because of dispersion forces due to distance between valence electrons and nucleus
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Mohammed Ayan 7 years ago

The motion posses by kinetic energy(1/2×mv^2)
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Ankit Singh 7 years ago

Thermodynamics is the branch of physics that has to do with heat and temperature and their relation to energy and work. The behavior of these quantities is governed by the four laws of thermodynamics, irrespective of the composition or specific properties of the material or system in question.
Thermodynamics is a science dealing with energy and its transformation.it deals with the relation ship between heat and work and the properties of the system in equilibrium

Purnima Gaur 7 years ago

It refers to as the change in heat
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Ruru ❤️ 7 years ago

Door handle at the end of opening Screw driver thicker
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Shivam Singh Aswal 6 years, 11 months ago

No I mean that velocity that is displacement / time is constant i.e. c but the speed according to the graph should be greater than c. How is it possible??

Arpit Porwal 7 years ago

No the velocity of any object in the universe cannot be more than c. Since there is a curve, it only make difference in the path but the speed remain constant
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Sanjana ? 7 years ago

Thanks

Ankit Singh 7 years ago

.Inertia is the property of mass that resists change. Therefore, it is safe to say that as the mass of an object increases so does its inertia. ... If you increase either mass orvelocity, the momentum of the object increases proportionally. If you double the mass or velocity you double the momentum.
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When the motion of the particles are not same as there is in streamline motion is turbulent motion
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The two wrong postulates in the kinetic theory of gas
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Říý@ ?? 7 years ago

The triangle law of vector addition states that , if two vectors ā and ē are represented by the two sides of a triangle taken in same order ,then, the resultant r will be the third side of that triangle taken on opposite order.
Triangle law of vector addition states that when two vectors are represented by two sides of a triangle in magnitude and direction taken in same order then third side of that triangle represents in magnitude and direction the resultant of the vectors.
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Santosh Meher 7 years, 1 month ago

Tension defines a force that acts axially when an object is pulled on both sides. As it is a force, it has units of pounds or Newtons depending on the types of units you are using. Stress is a result of a force being applied to an object. When the object is loaded with a force, internal components of the object apply internal forces to one another. This effectively deforms the object. Stress, although a result of an applied force, is measured in units of pressure, which is pounds per square inch or Newtons per meter squared.Stress can actually result from tension forces since tension is an applied forces.
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Md Mohid 7 years ago

The maximum force which the bigger piston bear, F = 3000kg x 9.8N Area of piston, A= 425 cm^2 = 425 x 10^-4 m^2 Therefore, Maximum pressure on the bigger piston, P = F/A = 3000 x 9.8 / 425 x 10^-4 = 6.92 x 10^5 Pa Since the liquid transmits pressure equally, therefore the maximum pressure the smaller piston can bear is 6.92 x 10^5 Pa.
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Říý@ ?? 7 years, 1 month ago

Ohm’s law states that , the current flowing through a conductor is directly proportional to the potential difference applied across its ends, provided the temperature and other physical conditions remain unchanged. Mathematically it can be represented as, Potential difference ∝ Current V ∝ I ( When the value of V increases the value of I increases simultaneously) V = IR. Here,V is Voltage in volts (V) R is Resistance in ohm (Ω) I is Current in Ampere (A)
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Říý@ ?? 7 years, 1 month ago

Sorry, it's PV= P1V1=P2V2=K

Říý@ ?? 7 years, 1 month ago

Boyle's law states that, at constant temperature , the volume of a gas is inversely proportional to its pressure. V∝1/p or PV=K. Here, K is a constant. Its value depends upon the nature of the gas, mass of the gas and temperature. P =P1V1=P2V2=K

Ankit Singh 7 years, 1 month ago

Boyle's Law simply describes the relationship between the pressure and volume of an enclosed gas when Temperature remains constant. That relationship, usually expressed as P1V1 = P2V2, just means that the product of pressure x volume remains unchanged as either or both are changed.

Priya Dharshini ☺☺ 7 years, 1 month ago

The volume of a given mass of a gas is inversely proportional to its pressure at constant temperature. V ∝ 1 / p or Vp = K K is a constant and its value depends on mass, temperature and nature of gas. ∴ p1V1 = p2V2
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Říý@ ?? 7 years, 1 month ago

Volume expansion can be defined as the expansion in volume due to increase in the temperature. This means that , there is increase in length, breadth and height of a substance.

Ankit Singh 7 years, 1 month ago

Ok priya why are u telling sorry this chapter not taught to u its not your problem ??

Anurag Rana 7 years, 1 month ago

hyy

Priya Dharshini ☺☺ 7 years, 1 month ago

I am sorry this chapter is not taught yet in my school or tution.

Ankit Singh 7 years, 1 month ago

Its imp

Ankit Singh 7 years, 1 month ago

Priya please answer

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