calculating area

Scientists who investigate weather phenomenon are called meteorologists. To study a particular feature, may require an observation from a larger area. By combining great number of observations and analysing them by computers it is possible to get information about a large weather system. ..

Let us consider a situation where the force is acting along the X-axis and the magnitude of the force is varying with position 'x'. Thus, as the ball moves, the magnitude of the work done by the force, on the ball, changes. The adjacent graph shows the plot of a one dimensional variable force. ..

Let us now calculate the electric flux passing through a surface when the applied field is not uniform. The surface is usually divided into a large number of small area dA such that the electric field remains constant over that surface as shown in the figure. The electric f..

Ampere's Circuital Law - Ampere's law is a useful relation that is analogous to Gauss's law. Ampere's law is a relationship between the tangential component of magnetic field at points on a closed curve and the net current through the area bounded by the curve. Ampere's law is formulated ..

Consider a massless spring of natural length 'l', one end of which is fastened to a wall. The other end is attached to a block, which is slowly pulled on a smooth horizontal surface, to extend the spring. If we take the spring as a system, when it is elongated by a distance 'x', the tension in it i..

Solar Constant (S) - The solar constant is defined as the amount of heat energy received per second per unit area by a perfect black body placed at the surface of the Earth with its surface being held perpendicular to the direction of the sun's rays. The value of solar constant is 1388 Wm..

. Speed is scalar quantity. SI unit of speed is m/s. Instantaneous speed: It is the speed which the body possesses at a particular instant of time. The speed of a moving object can be determined by calculating the slope of the S-t graph. The S-t graph tells us about the nature of motion. ..

. Speed is scalar quantity. SI unit of speed is m/s. Instantaneous speed: It is the speed which the body possesses at a particular instant of time. The speed of a moving object can be determined by calculating the slope of the S-t graph. The S-t graph tells us about the nature of motion. ..

. If the depth of immersion is 10 cm, calculate the (i) upthrust acting on the cylinder, (ii) area of cross section of the cylinder, (iii) depth of immersion in a liquid of R.D. equal to 12. Suggested Answer:- (i) Upthrust = Weight of the floating body = 85 + 35 = 120 g (ii) ..

The Ideal Gas Equation - Another simple equation of state is the one for an ideal gas. The figure below shows an experimental setup to study the behavior of a gas. The cylinder has a movable piston to vary the volume, heating can vary the temperature, and we can pump the desired amount of any gas i..