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Sagging of thin pattern due to ramming can be overcome by constructing a supporting block which may fit inside the pattern to serve as a support during ramming, such a pattern is called
Jolt method of ramming makes smooth ramming and packing of sand layers in the mould.
Two particles of equal masses are connected by an inextensible string of length L. One of the masses is constrained to moves on the surface of a horizontal table. The string passes through a small hole in the table and the other mass is hanging below the table. The only constraint is that the first mass moves on the surface of the table. The number of degree of freedom of the masses string system is
The rainfall due to upward movement of air caused by convergence of cold air masses against warm air masses is called ________.
A rigid body, under the action of external forces, can be replaced by two masses placed at a fixed distance apart. The two masses form an equivalent dynamical system, if
Which law states that when elements are arranged in the order of increasing atomic masses, the atomic mass of the middle element of the triad is approximately the average of the atomic masses of the other two elements?
Which of the following statements is/are correct? (1) The warm air masses form near or over the equator all the desert areas where the solar radiation is minimum. (2) The cold air masses form near the poles where the solar radiation is maximum.
Three blocks with masses m, 2 m and 3 m are connected by strings, as shown in the figure. After an upward force F is applied on block m, the masses move upward at constant speed v. What is the net force on the block of mass 2 m? (g is the acceleration due to gravity)
How will the force between two masses m1 and m2 placed at a distance 'd' change, when the masses are doubled and the distance between them is halved?
Which of the following statements is/are INCORRECT? A. The ratio of the force of gravitation between two masses, m1 and m2, kept at a distance R on the earth and on the moon is 1:1. B. Nm2/kg2 is the SI unit of G. C. The value of G depends on the distance between the bodies. D. The value of G depends on the masses of the bodies.