Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Explain the concept of the center of mass.
The center of mass is the particular point through which the weight of an object, regardless of its orientation, acts.
The center of mass is the particular point through which the weight of an object, regardless of its orientation, acts.
See lessWhat is weightlessness?
Weightlessness occurs when the reaction force on an object is zero, and no weight is felt on that object.
Weightlessness occurs when the reaction force on an object is zero, and no weight is felt on that object.
See lessDefine the center of gravity.
The center of gravity is the point inside an object through which the total weight acts, regardless of how the object is placed.
The center of gravity is the point inside an object through which the total weight acts, regardless of how the object is placed.
See lessWhat is gravitational force?
Gravitational force is the amount of work done to bring an object of unit mass from an infinite distance to a point in the gravitational field.
Gravitational force is the amount of work done to bring an object of unit mass from an infinite distance to a point in the gravitational field.
See lessState Newton’s law of gravitation.
Newton's law of gravitation states that any two particles in the universe attract each other. The force of attraction is proportional to the product of the masses of the two objects and the distance between them.
Newton’s law of gravitation states that any two particles in the universe attract each other. The force of attraction is proportional to the product of the masses of the two objects and the distance between them.
See lessExplain the concept of a gravitational field.
A gravitational field is the region in which the force of attraction around a large object is felt.
A gravitational field is the region in which the force of attraction around a large object is felt.
See lessWhat is gravity?
Gravity is the force of attraction between two objects in the universe.
Gravity is the force of attraction between two objects in the universe.
See lessDefine the gravitational constant.
The gravitational constant is the value by which two particles of unit mass attract each other at a unit distance.
The gravitational constant is the value by which two particles of unit mass attract each other at a unit distance.
See lessDescribe Kepler’s Third Law.
Kepler's Third Law states that the square of the orbital period of each planet around the Sun is proportional to the cube of the average distance of that planet from the Sun.
Kepler’s Third Law states that the square of the orbital period of each planet around the Sun is proportional to the cube of the average distance of that planet from the Sun.
See lessExplain Kepler’s Second Law.
Kepler's Second Law states that the straight lines joining the planets and the Sun traverse equal areas in equal times.
Kepler’s Second Law states that the straight lines joining the planets and the Sun traverse equal areas in equal times.
See lessWhat is Kepler’s First Law, also known as the Chamber Law?
Kepler's First Law, also known as the Chamber Law, states that each planet travels in an elliptical path with the Sun at one focus.
Kepler’s First Law, also known as the Chamber Law, states that each planet travels in an elliptical path with the Sun at one focus.
See lessWhat is the contact angle of a solid and liquid?
The contact angle of a solid and liquid is the angle formed by the tangent drawn from the point of contact of the solid and liquid to the curved surface of the liquid inside the solid.
The contact angle of a solid and liquid is the angle formed by the tangent drawn from the point of contact of the solid and liquid to the curved surface of the liquid inside the solid.
See lessExplain surface energy.
Surface energy is the amount of work done to increase the surface area of a liquid by one unit.
Surface energy is the amount of work done to increase the surface area of a liquid by one unit.
See lessWhat is surface tension?
Surface tension is the force or tension acting perpendicular to a line on the surface of a liquid per unit length on either side of the line.
Surface tension is the force or tension acting perpendicular to a line on the surface of a liquid per unit length on either side of the line.
See lessDefine viscosity.
Viscosity is the property of a fluid that creates a barrier tangentially against the relative motion between different layers of its interior.
Viscosity is the property of a fluid that creates a barrier tangentially against the relative motion between different layers of its interior.
See lessDescribe parallel flow in fluid dynamics.
In fluid dynamics, parallel flow occurs when the different layers of motion move through a pipe, and these layers are parallel to the axis of the pipe.
In fluid dynamics, parallel flow occurs when the different layers of motion move through a pipe, and these layers are parallel to the axis of the pipe.
See lessWhat is Poisson’s ratio?
Poisson's ratio is a constant representing the ratio of lateral deformation to longitudinal deformation of a material within the elastic limit.
Poisson’s ratio is a constant representing the ratio of lateral deformation to longitudinal deformation of a material within the elastic limit.
See lessDefine the volume factor.
The volume factor is the ratio of volume strain to volume strain of a material within the elastic limit, representing a constant number.
The volume factor is the ratio of volume strain to volume strain of a material within the elastic limit, representing a constant number.
See lessExplain the coefficient of elasticity.
The coefficient of elasticity is the ratio of stress to deformation of a material within the elastic limit, representing a constant number.
The coefficient of elasticity is the ratio of stress to deformation of a material within the elastic limit, representing a constant number.
See lessWhat is Hooke’s formula?
Hooke's formula states that within the elastic limit, the stress applied to the material is proportional to its deformation.
Hooke’s formula states that within the elastic limit, the stress applied to the material is proportional to its deformation.
See less