(d) Volume of metallic pieces A and B are equal. If it in accordance with Archimede's principle. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
(d) Volume of metallic pieces A and B are equal. If it in accordance with Archimede’s principle.
(b) Kinetic energy of an object E = 1/2 mv². If speed of the object is doubled then obviously its kinetic energy is raised to four times of its initial value. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
(b) Kinetic energy of an object E = 1/2 mv². If speed of the object is doubled then obviously its kinetic energy is raised to four times of its initial value.
(c) remains constant. It is accordance with the law of conservation of energy. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
(c) remains constant. It is accordance with the law of conservation of energy.
(d) When we lift a suitcase from the floor and keep it on a table, we do work against the weight of suitcase. The work done, being product of force and displacement, depends on the weight of the suitcase as well as on the height of the table from the floor. https://www.tiwariacademy.com/ncert-solutiRead more
(d) When we lift a suitcase from the floor and keep it on a table, we do work against the weight of suitcase. The work done, being product of force and displacement, depends on the weight of the suitcase as well as on the height of the table from the floor.
A and B are two metallic pieces. They are fully immersed in water and the buoyant force due to water on both pieces is found to be same. From this we conclude that
(d) Volume of metallic pieces A and B are equal. If it in accordance with Archimede's principle. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
(d) Volume of metallic pieces A and B are equal. If it in accordance with Archimede’s principle.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-9/
See lessIf the speed of an object is doubled then its
(b) Kinetic energy of an object E = 1/2 mv². If speed of the object is doubled then obviously its kinetic energy is raised to four times of its initial value. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
(b) Kinetic energy of an object E = 1/2 mv². If speed of the object is doubled then obviously its kinetic energy is raised to four times of its initial value.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
See lessAn iron sphere of mass 10 kg has the same diameter as an aluminium sphere of mass is 3.5 kg. Both spheres are dropped simultaneously from a tower. When they are 10 m above the ground, they have the same
(a) Both spheres are freely falling bodies and have same acceleration 'g'. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
(a) Both spheres are freely falling bodies and have same acceleration ‘g’.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
See lessWhen a body falls freely towards the earth, then its total energy
(c) remains constant. It is accordance with the law of conservation of energy. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
(c) remains constant. It is accordance with the law of conservation of energy.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
See lessYou lift a suitcase from the floor and keep it on a table. The work done by you on the suitcase depends on
(d) When we lift a suitcase from the floor and keep it on a table, we do work against the weight of suitcase. The work done, being product of force and displacement, depends on the weight of the suitcase as well as on the height of the table from the floor. https://www.tiwariacademy.com/ncert-solutiRead more
(d) When we lift a suitcase from the floor and keep it on a table, we do work against the weight of suitcase. The work done, being product of force and displacement, depends on the weight of the suitcase as well as on the height of the table from the floor.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-10/
See less