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Solve: (vii) (8)1/2−(3)5/8
07
Oct
Solve: (vii) (8)1/2−(3)5/8 Solve: (vii) (8)1/2−(3)5/8 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
Solve: (vi) (2)2/3+(3)1/2
07
Oct
Solve: (vi) (2)2/3+(3)1/2 Solve: (vi) (2)2/3+(3)1/2 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
A tank is filled with water of density 10^3 kg/m^3 and oil of density 9 × 10^3 kg/m^3. The height of water layer is 1m and that of the oil layer is 4 M. The velocity of efflux front an opening in the bottom of the tank is
07
Oct
A tank is filled with water of density 10^3 kg/m^3 and oil of density 9 × 10^3 kg/m^3. The height of water layer is 1m and that of the oil layer is 4 M. The velocity of efflux front an opening in the bottom of the tank is A hole is made at the bottom [...]
Solve: (v) 7/10+2/5+3/2
07
Oct
Solve: (v) 7/10+2/5+3/2 Solve: (v) 7/10+2/5+3/2 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
A cylindrical vessel contains a liquid of density ρ up to height h. The liquid is closed by a piston of mass m and area of cross section A. There is a small hole at the bottom of the vessel. The speed v with which the liquid comes out of the hole is
07
Oct
A cylindrical vessel contains a liquid of density ρ up to height h. The liquid is closed by a piston of mass m and area of cross section A. There is a small hole at the bottom of the vessel. The speed v with which the liquid comes out of the hole is A hole [...]
A beaker containing water is placed on the platform of a spring balance. The balance reads 1.5 kg. A stone of mass 0.5 kg and density 500 kg/m^ 3 is immersed in water without touching the walls of beaker. What will be the balance reading now?
07
Oct
A beaker containing water is placed on the platform of a spring balance. The balance reads 1.5 kg. A stone of mass 0.5 kg and density 500 kg/m^ 3 is immersed in water without touching the walls of beaker. What will be the balance reading now? A hole is made at the bottom of the [...]
Solve: (iv) 9/11−4/5
07
Oct
Solve: (iv) 9/11−4/5 Solve: (iv) 9/11−4/5 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
Solve: (iii) 3/5+2/7
07
Oct
Solve: (iii) 3/5+2/7 Solve: (iii) 3/5+2/7 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
Solve: (ii) 4+7/8
07
Oct
Solve: (ii) 4+7/8 Solve: (ii) 4+7/8 October 7, 2020 Category: Chapter 2 - Fraction and Decimals , Maths , NCERT Class 7 ,
Water flows through a horizontal tube as shown in figure. If the difference of heights of water colun in the vertical tubes is 2 cm and the area of cross section at A and B are 4 cm^2 and 2 cm^2 respectively, find the rate of flow of water across any section.
07
Oct
Water flows through a horizontal tube as shown in figure. If the difference of heights of water colun in the vertical tubes is 2 cm and the area of cross section at A and B are 4 cm^2 and 2 cm^2 respectively, find the rate of flow of water across any section. A hole is [...]