The most common definition of weight found in introductory physics textbooks defines weight as the force exerted on a body by gravity. This is often expressed in the formula W = mg, where W is the weight, m the mass of the object, and g gravitational acceleration.

How to Determine the Correct Metal Weight

1. Weigh your wax models along with main and gate sprues.
2. Multiply that total by the specific gravity of the metal you’re casting (see table below for metal specific gravity).
3. Example: For a 5-gram wax model, add 0.5 (10% of 5g) to get a total wax weight of 5.5g.

A geometric Cone mass based on the mean density of the cone material (mD) and its volume as a function of the height (h) and the radius of the base (r)….

1. (kg/m³) kg/m³
2. (lb/ft³) lb/ft³
3. (g/cm³) gram/cm³
4. (t/m³) metric ton/meter³
5. (ton_us/yd³) ton/yd³ (U.S.)
6. (oz/in³) oz/in³

There are two formulas that are used to calculate the volume of a frustum of a cone. Consider a frustum of radii ‘R’ and ‘r’, and height ‘H’ which is formed by a cone of base radius ‘R’ and height ‘H + h’. Its volume (V) can be calculated by using: V = πh/3 [ (R3 – r3) / r ] (OR)

The formula for the volume of a cone is V=1/3hπr².

Total Surface Area of Cylinder The total surface area of a cylinder is equal to the sum of areas of all its faces. The Total surface area with radius ‘r’, and height ‘h’ is equal to the sum of the curved area and circular areas of the cylinder. TSA = 2π × r × h + 2πr2= 2πr (h + r) Square units.

The formula for the volume of a cylinder is V=Bh or V=πr2h . The radius of the cylinder is 8 cm and the height is 15 cm. Substitute 8 for r and 15 for h in the formula V=πr2h . Therefore, the volume of the cylinder is about 3016 cubic centimeters.

Calculate the volume of a cone by its base and height with the equation volume = 1/3 * base * height. You can calculate the height of a cone from its volume by reversing this equation. Triple the volume amount. For this example, the volume is 100.

It is calculated with the help of the formula, πr2h, where r is the radius of the circular base, h is the height of the cylinder, and π(Pi) is a mathematical constant with an approximate value of 3.14. Therefore, the height of a cylinder is calculated with the help of the formula, V/ πr2.

How to Calculate Height By Geometry. So, “H/S = h/s.” For example, if s=1 meter, h=0.5 meter and S=20 meters, then H=10 meters, the height of the object.

To get your height in inches alone from the way it’s usually presented (e.g. 5′ 7″), multiply the total number of feet by 12 and then add the remainder. For example, a 5′ 7″ person is (5 × 12) + 7 = 67″ tall. To convert inches to centimeters (in to cm), simply multiply by 2.54.

Divide your weight in kilograms by the number you obtained. For example: your height is 170cm; your weight is 65kg. Therefore, 65 : (1.7 * 1.7) = 22.5.

Feet to Centimeters (ft to cm) Conversion

GHeight is app for height measurement. You only need to put the phone on your head.

Simply launch Measure, point the phone’s camera to an object, then pick two points to measure the distance in between. The virtual tape measure can measure either height or length.

Stadiometer

stadiometer

Beam balance

Weight of a body is the mass of the body tinus its acceleration due to gravity. The gravitational acceleration is not constant and changes depending on the mass of the larger body. Thus weight is not constant, unlike mass.

The mass is essentially “how much stuff” is in an object. Weight: There is a gravitational interaction between objects that have mass. If you consider an object interacting with the Earth, this force is called the weight. The unit for weight is the Newton (same as for any other force).

The difference between mass and weight is that mass is the amount of matter in a material, while weight is a measure of how the force of gravity acts upon that mass. Mass is the measure of the amount of matter in a body. Mass is denoted using m or M. Weight is mass multiplied by the acceleration of gravity (g).

The weight of a body is the force with which it is attracted towards the centre of the earth. The force of attraction of earth on a body is called as weight. The gravitational force of moon is about one-sixth that of earth,therefore weight of an object on moon will be one-sixth of what it is on earth.

The mass of an object is a measure of the object’s inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it. The pull of gravity on the earth gives an object a downward acceleration of about 9.8 m/s2.

(i) what is the mass of body of weight 1 kg ? (ii) what is the weight of a body of mass 1 kg ? (i) mass of a body of weight 1 kg is one kilogram. (ii) weight of a body of mass 1 kg is 1 kg wt=9.8N.

Since there is no practical easy way to measure mass, in everyday life we use the kilogram as a unit of weight assuming that the gravitational field is fairly constant around earth. However scales have to be calibrated locally to compensate the slight gravitational field variation in different places.