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    • Posted by Ravi Damor 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 3 answers

    Swastik Singh 6 years, 11 months ago

    The rate of change of velocity with distance is called velocity gradient. Consider an orderly flow of liquid over a fixed plane consider its two layer separatef by a distance dx having velocitied v and v+dv Then Velocity gradient =[(v+dv)-v]/dx =dv/dx

    2Thank You

    Shatayu Ganvir 6 years, 11 months ago

    Dv/Dz

    1Thank You

    Aditya Goswami 6 years, 11 months ago

    dv/dx

    4Thank You

    ANSWER

    • Posted by Loveleen Kaur 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 2 answers

    Ankit Singh 6 years, 11 months ago

    Yes which

    0Thank You

    Ayush Sharma 6 years, 11 months ago

    For which

    1Thank You

    ANSWER

    • Posted by Bhaumik Pandey 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Yogita Ingle 6 years, 11 months ago

    Force is applied at the outer edge of the lever(here the door) as there is increased `leverage`. This is because at this case R (distance from hinge) is more .Since torque = F × R., increase in R would lead to increase in torque, hence easier the work.

    1Thank You

    ANSWER

    • Posted by Meet Patel 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Swastik Singh 6 years, 11 months ago

    No.the lower temperature is always subtract from higher temperature .as a result it is always positive.

    0Thank You

    ANSWER

    • Posted by Vinita Yadav 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Swastik Singh 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Shatayu Ganvir 6 years, 11 months ago

    Here dq=0, we know dq=du+dw 0=ncdt+pdv use formulae of cp-cv=r and others and u will get pv^gamma constant

    0Thank You

    ANSWER

    • Posted by Abhay Kumar Kushwaha 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 5 answers

    Navneet . 6 years, 11 months ago

    Yes

    0Thank You

    Aman Kumar 6 years, 11 months ago

    Ofcourse yes

    0Thank You

    Ankit Singh 6 years, 11 months ago

    Yes

    0Thank You

    Priya Dharshini ? 6 years, 11 months ago

    Yes it is there

    3Thank You

    ???. Pragati 6 years, 11 months ago

    Yes

    2Thank You

    ANSWER

    • Posted by Ashok Kumar 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Yogita Ingle 6 years, 11 months ago

    Momentum is a quantity that describes an object's resistance to stopping (a kind of "moving inertia"). It is represented by the symbol p (boldface). Itis the product of an object's mass and velocity.
    p = mv
    S.I Unit of Momentum = S.I Unit of mass × S.I Unit of velocity
    S.I Unit of Momentum = kg × m.s-1
    S.I Unit of Momentum = kg.m.s-1
    The SI unit of momentum is the kilogram meter per second.

    1Thank You

    ANSWER

    • Posted by Gaurav Parjapat 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Ravi Damor 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Yogita Ingle 6 years, 11 months ago

    • Reynolds number is a dimensionless number, whose value gives an idea whether the flow would be turbulent or laminar.
    • Types of flow are classified as 2 types:laminar flow and turbulent flow.
    • Reynolds number helps us to determine whether the flow is laminar or turbulent.

    5Thank You

    ANSWER

    • Posted by Priyanshu Sharma 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 2 answers

    Aman Kumar 6 years, 11 months ago

    In simple word , restoring force acting per unit area tangentially /longitudinally .....is called shear stress

    2Thank You

    Yogita Ingle 6 years, 11 months ago

    Shear stress is the amount of force per unit area perpendicular to the axle of the member. When you stepped on the wooden stick really hard, the impact load on the stick caused two types of stresses:

    1. Bending stress, also called flexural stress, is parallel to the axle of the member
    2. Shear stress is perpendicular to the axle of the member.

    1Thank You

    ANSWER

    • Posted by Alyen Sharma 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Priya Dharshini ? 6 years, 11 months ago

    Conservation of angular momentum is a physical property of a spinning system such that its spin remains constant unless it is acted upon by an external torque; put another way, the speed of rotation is constant as long as net torque is zero.

    4Thank You

    ANSWER

    • Posted by Gaurav Nagyan 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Ankit Singh 6 years, 11 months ago

    Derivation: ΔU = ΔQ + ΔW ΔU = Cv ΔT (At pressure is constant) ΔQ = Cp ΔT (At pressure is constant) ΔW = -P ΔV (Negative since the calculation been complete) Pv = RT (1 mole of gas) Because of pressure is constant, R is also constant Change in V will make change in T PΔV = R ΔT Cv ΔT = CpΔT - RΔT Divided by ΔT Cv = Cp - R Cp - Cv = R

    2Thank You

    ANSWER

    • Posted by Shweat Panday 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 6 answers

    Ankit Singh 6 years, 11 months ago

    Gravity, also called gravitation, is a force that exists among all material objects in the universe. For any two objects or particles having nonzero mass, the force of gravity tends to attract them toward each other.

    2Thank You

    Ravi Damor 6 years, 11 months ago

    It is the force of attraction between the earth and any object lying on or near the surface of the earth

    0Thank You

    Subhi ? 6 years, 11 months ago

    It is the force of attraction which attract any object towards the earth....

    0Thank You

    Priya Dharshini ? 6 years, 11 months ago

    the force that attracts a body towards the centre of the earth, or towards any other physical body having mass

    1Thank You

    Ayushi Ayushi 6 years, 11 months ago

    In physics, gravity is the natural force that causes things to fall toward the earth. For example When a boy accidentally drops a book from his hand. The book is pulled towards the Earth by the force of gravity .

    1Thank You

    Pranjal Verma 6 years, 11 months ago

    the natural force that makes things fall to the ground when you drop them

    0Thank You

    ANSWER

    • Posted by Mohan Bhadauriya 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Aman Kumar 6 years, 11 months ago

    It is :- u sin theta/g

    0Thank You

    ANSWER

    • Posted by Sannu H 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Ayushi Ayushi 6 years, 11 months ago

    For cyclical processes, such as rotation, oscillations, or waves, frequency is defined as a number of cycles per unit time. For example, an "A" note on a violin string vibrates at about 440 Hz (440 vibrations per second).

    4Thank You

    ANSWER

    • Posted by Prashant Kumar 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 4 answers

    Ankit Singh 6 years, 11 months ago

    Newton’s First Law of Motion also known as Law of Inertia states that every object persists to stay in uniform motion in a straight line or in the state of rest unless an external force acts upon it. Newton’s Second Law of Motion states that force is equal to the change in momentum per change in time. For a constant mass, force equals mass times acceleration, i.e. F = m*a. Learn about the Acceleration in detail here. Newton’s Third Law of Motion states that for every action there is an equal and opposite reaction. Derivation of Newton’s Second Law of Motion According to Newton’s second law: F⃗ =dP⃗ /dt, where P⃗ = momentum and P⃗ =mv⃗ If the time interval for the applied force is increased, then the value of the applied force will decrease. In cricket players use this while catching the ball. They pull their hands back so that time of contact with ball increases and they would experience less jerk due to the motion of the ball. From Newton’s second law of motion, F⃗ ∝dP⃗ /dt F⃗ =k×dP⃗ /dt=kma⃗ For simplicity, the constant of proportionality (k) is chosen to be 1, therefore F⃗ =ma⃗ Hope this will help u

    2Thank You

    Aman Kumar 6 years, 11 months ago

    Newton's 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. This is normally taken as the definition of inertia. The key point here is that if there is no net force acting on an object (if all the external forces cancel each other out) then the object will maintain a constant velocity. If that velocity is zero, then the object remains at rest. If an external force is applied, the velocity will change because of the force. The second law explains how the velocity of an object changes when it is subjected to an external force. The law defines a force to be equal to change in momentum (mass times velocity) per change in time. Newton also developed the calculus of mathematics, and the "changes" expressed in the second law are most accurately defined in differential forms. (Calculus can also be used to determine the velocity and location variations experienced by an object subjected to an external force.) For an object with a constant mass m, the second law states that the force F is the product of an object's mass and its acceleration a: F = m * a For an external applied force, the change in velocity depends on the mass of the object. A force will cause a change in velocity; and likewise, a change in velocity will generate a force. The equation works both ways. The third law states that for every action (force) in nature there is an equal and opposite reaction. In other words, if object A exerts a force on object B, then object B

    1Thank You

    Aman Kumar 6 years, 11 months ago

    And I know the explaination of those laws will be soon given you by doubt solving frnds ....??

    1Thank You

    Aman Kumar 6 years, 11 months ago

    3 law of motion are there...

    1Thank You

    ANSWER

    • Posted by Saba Elias 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Shivam Shahi 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Asif Raja 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 3 answers

    Saba Elias 6 years, 11 months ago

    V=IR

    0Thank You

    Aman Kumar 6 years, 11 months ago

    As much I remember from class 10 .....It states that at certain temperature, the flow of current is directly proportional to the potential difference across two points in a conductor....

    1Thank You

    Priya Dharshini ? 6 years, 11 months ago

    Ohm's law states that the current through a conductor between two points is directly proportional to the voltage across the two points.

    2Thank You

    ANSWER

    • Posted by Deepu Yadav 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 4 answers

    ???. Pragati 6 years, 11 months ago

    Thanku ???✌️ Ankit

    2Thank You

    Priya Dharshini ? 6 years, 11 months ago

    the rate of heat loss of a body is directly proportional to the difference in the temperatures between the body and its surroundings provided the temperature difference is small and the nature of radiating surface remains same

    3Thank You

    Ankit Singh 6 years, 11 months ago

    ??? good answer avneet

    2Thank You

    ???. Pragati 6 years, 11 months ago

    Newton's law of cooling states that the rate of heat loss of a body is directly proportional to the difference in the temperatures between the body and its surroundings provided the temperature difference is small and the nature of radiating surface remains same.

    3Thank You

    ANSWER

    • Posted by Afsana Ahamed 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Hariom Shukla 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 2 answers

    Ankit Singh 6 years, 11 months ago

    Your u right avneet

    2Thank You

    ???. Pragati 6 years, 11 months ago

    ?? well see in ncert book?

    2Thank You

    ANSWER

    • Posted by Surender Jaglan 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Surender Jaglan 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

    • Posted by Yash Sharma 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Pranjal Verma 6 years, 11 months ago

    Sum of pressure energy, kinetic energy and potential energy is constant.

    0Thank You

    ANSWER

    • Posted by Ɽøⱨł₮ ₲Ʉ₱₮₳ 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Aman Kumar 6 years, 11 months ago

    P+ pgh + 1/2pv^2 =constant.......( Here:- p= row(density))

    1Thank You

    ANSWER

    • Posted by Ram Yadav 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Ayushi Ayushi 6 years, 11 months ago

    An atomic mass (symbol: ma) is the mass of a single atom of a chemical element. It includes the masses of the 3 subatomic particles that make up an atom: protons, neutrons and electrons. Atomic mass can be expressed in grams. ... 1 atomic mass unit is defined as 1/12 of the mass of a single carbon-12 atom.

    5Thank You

    ANSWER

    • Posted by Huidrom Pravakaran 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 1 answers

    Ankit Singh 6 years, 11 months ago

    Thermo means temperature and dynamics means same 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.

    3Thank You

    ANSWER

    • Posted by Chinmay Kumar 6 years, 11 months ago

    CBSE > Class 11 > Physics
    • 0 answers
    ANSWER

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