Ask questions which are clear, concise and easy to understand.

Adithya Dev A 23 hours ago

V = π r^2 l = 3.14 × 1.75 × 1.75 × 4.54 = 43.657775 cm^3. //

Adithya Dev A 2 days, 1 hour ago

Work = [M L^2 T^-2]. Velocity = [LT^-1]. Kinetic energy = [ML^2T^-2]. Pressure = [ML^-1T^-2]. Acceleration = [LT^-2].

Bhagyshree Chakrawarthi 4 days, 1 hour ago

Dyos69st,sodyd8d tinged z8yc roughly ey,kbxk

Nurut Kkw 6 days, 3 hours ago

In a circular motion ,any body move along the radius

Nurut Kkw 6 days, 3 hours ago

Centripetal force is the force required to move a body uniformly in a circle. This force acts along the radius to the centre. => according to Newton first law of body cannot change it direction by itself. Some external force is required for this purpose. And this external forces is called centripetal force.

Dipu 😎 6 days, 21 hours ago

Sakshi Sehrawat 1 week, 3 days ago

It is used to measure distance between sun or moon from earth

Sakshi Sehrawat 1 week, 3 days ago

Plane angle are 2 D Solid angle are 3 D

Fjk Ojg 1 week, 5 days ago

2x dc

Prabhjot Kaur 3 days, 12 hours ago

Mainly three types of error Systematic error Random error Constant error Other types are Absolute error Relative error Percentage error

Nitesh Kumar 1 week, 3 days ago

[M^0L^0T^0]

Saima Parveen 1 week, 6 days ago

Strain= Change in length Original length. Strain is dimensionless.

Saima Parveen 1 week, 6 days ago

750N and 250N in the respective cases; Method (b) Mass of the block, m= 25kg Mass of the man, M= 50kg Acceleration due to gravity, g= 10m/s² Force applied on the block, F= 25×10=500N Case (a): When the man lifts the block directly In this case, the man applies a force in the upward direction. This increases his apparent weight. Action on the floor by the man =250+500=750N Case (b): When the man lifts the block using a pulley In this case, the man applies a force in the downward direction. This descreases his apparent weight. Action on the floor by the man =500-250=250N If the floor can yield to a normal force of 700N, then the man should adopt the second method to easily lift the block by applying lesser force.

Priyajit Patra 1 week, 6 days ago ## myCBSEguide

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