(a) The correct relation is P = F/A because pressure is defined as the force acting normally on a unit A surface area. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
(a) The correct relation is P = F/A because pressure is defined as the force acting normally on a unit A surface area.
(d) is independent of mass and radius of earth. G is a universal constant having a value of 6.673 x 10⁻¹¹ N m² kg⁻². https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
(d) is independent of mass and radius of earth. G is a universal constant having a value of 6.673 x 10⁻¹¹ N m² kg⁻².
(d) Work is said to be done on a body when a force acts on the body and under its influence the body is displaced through some distance along the direction of force. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
(d) Work is said to be done on a body when a force acts on the body and under its influence the body is displaced through some distance along the direction of force.
(a) When some mechanical work is done on an object, the object gains energy. The gain in energy is equal to the work done on the object. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
(a) When some mechanical work is done on an object, the object gains energy. The gain in energy is equal to the work done on the object.
A body exerts a force F on a surface of surface area A. Pressure P acting on the surface is
(a) The correct relation is P = F/A because pressure is defined as the force acting normally on a unit A surface area. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
(a) The correct relation is P = F/A because pressure is defined as the force acting normally on a unit A surface area.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
See lessThe value of quantity G in the law of gravitation
(d) is independent of mass and radius of earth. G is a universal constant having a value of 6.673 x 10⁻¹¹ N m² kg⁻². https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
(d) is independent of mass and radius of earth. G is a universal constant having a value of 6.673 x 10⁻¹¹ N m² kg⁻².
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
See lessWork is done on a body when
(d) Work is said to be done on a body when a force acts on the body and under its influence the body is displaced through some distance along the direction of force. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
(d) Work is said to be done on a body when a force acts on the body and under its influence the body is displaced through some distance along the direction of force.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
See lessWhen some mechanical work is done on an object
(a) When some mechanical work is done on an object, the object gains energy. The gain in energy is equal to the work done on the object. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
(a) When some mechanical work is done on an object, the object gains energy. The gain in energy is equal to the work done on the object.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
See lessThe atmosphere is held to the earth by
(a) gravity. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
(a) gravity.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
See less