Share & grow the world's knowledge!
We want to connect the people who have knowledge to the people who need it, to bring together people with different perspectives so they can understand each other better, and to empower everyone to share their knowledge.
The weight of a body on Earth is maximum at:
The weight of a body on Earth is greatest at the poles. This is mainly due to the shape and rotation of the Earth. The Earth is not a perfect sphere but rather an oblate spheroid, meaning it is slightly flattened at the poles and bulging at the equator. Therefore, the distance from the center of theRead more
The weight of a body on Earth is greatest at the poles. This is mainly due to the shape and rotation of the Earth. The Earth is not a perfect sphere but rather an oblate spheroid, meaning it is slightly flattened at the poles and bulging at the equator. Therefore, the distance from the center of the Earth to the surface is shorter at the poles than at the equator.
Gravitational force also differs a little with location on the Earth’s surface. At the poles, the gravitational pull is a little stronger than at the equator because of this reduced distance from the Earth’s center. Thus, an object weighs more at the poles than at any other location on the Earth’s surface.
Other determinants of weight include altitude and Earth’s rotation. For instance, the farther from the Earth’s center, the smaller the weight, and thus higher altitudes would mean lesser weights. Likewise, Earth’s rotation results in a centrifugal force that also minimizes weight at the equator. Still, in the presence of these factors, the poles remain the best places for obtaining maximum weight on any given body due to a combination of the forces of gravitation and distance from the center of the Earth.
For more click here: – https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-7/
See lessDefine the term torque or moment of force. Give its units and dimensions.
Torque, also known as the moment of force, is the turning effect produced by a force applied to an object that causes it to rotate around an axis or pivot point. This effect depends on the magnitude of the applied force and the perpendicular distance between the axis of rotation and the line of actiRead more
Torque, also known as the moment of force, is the turning effect produced by a force applied to an object that causes it to rotate around an axis or pivot point. This effect depends on the magnitude of the applied force and the perpendicular distance between the axis of rotation and the line of action of the force. Torque is a base concept in the rotational motion which initiates the change of the rotation state of any object. Its standard unit within the SI is the Newton-meter N·m; in the CGS system it is measured by dyne-centimeter, dyne·cm.
Torque has dimensions of mass, length squared, and time to the power of negative two. This dimensional representation highlights its connection to force and distance.
Torque is important for the explanation and analysis of rotational motion. It tells why it is easier to open a door when pushing it near the edge, rather than pushing it near the hinges, since the distance makes the torque bigger. From wrenches to complicated engines and turbines, applications of torque have made it very relevant in both daily life and in the engineering world.
Click here for more :- https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-6/
See lessWhat is scientific theory?
Theory is the name given to a set of limited number of laws in terms of which the behaviour of a physical system can be explained. A good theory should not only explain the allready existing phenomena but it should be able to predict and explain the new phenomenon. For more please visit here: https:Read more
Theory is the name given to a set of limited number of laws in terms of which the behaviour of a physical system can be explained. A good theory should not only explain the allready existing phenomena but it should be able to predict and explain the new phenomenon.
See lessFor more please visit here:
https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
On what factors does the turning effect of a force depends? What is the turning effect of force called?
The turning effect of a force, or torque or moment of force, depends on three main factors. First, the magnitude of the force is critical. A larger force generates a stronger turning effect, making it more effective in causing rotation. Second, the perpendicular distance from the axis of rotation toRead more
The turning effect of a force, or torque or moment of force, depends on three main factors. First, the magnitude of the force is critical. A larger force generates a stronger turning effect, making it more effective in causing rotation. Second, the perpendicular distance from the axis of rotation to the point where the force is applied, known as the lever arm, plays a significant role. The farther the force is applied from the pivot point, the greater the torque. For example, pushing a door at its edge requires less effort than pushing it near the hinges because the distance from the pivot is larger. The third one is the angle at which force is applied. If the force should be applied to the lever at an angle that will ensure maximum turning effect, it would be perpendicular. If it applies at an angle, then just the perpendicular part of it has a role to play in creating rotation.
The turning effect of a force is known as torque or moment of force. This concept is essential to rotational motion and helps understand the proper working of levers, wrenches, and mechanical systems such as engines and turbines in applications.
Click here for more: – https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-6/
See lessMention some important contributions of Albert Einstein to physics.
(i). Mass-energy equivalence (ii). Photoelectric effect and (iii). Theory of relativity For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/
(i). Mass-energy equivalence
(ii). Photoelectric effect and
(iii). Theory of relativity
For more please visit here:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-11/physics/chapter-1/