zero reference point

The Circle of Reference - The above figure shows a body moving with uniform speed along a circle. Let perpendiculars be drawn from different positions of the body onto any diameter, say the vertical diame..

When the applied force and the displacement make an angle 90 o to each other, the work done is zero. This is because cos 90 = 0. A person carrying a briefcase, moves on a horizontal road. Since, the gravitational force acts vertically downwards and the displacement of the person is in..

Compensation Point - At a given low concentration of CO 2 and non-limiting light intensity, the photosynthetic rate of a given plant will be equal to the total amount of respiration. The atmospheric concentration of CO 2 at which photosynthesis just compensates for respiration is ref..

Refer the figure to answer the questions. (i). Are points K, E and F collinear? (ii). Are points A, L, D and B coplanar? => (i) yes (ii) no or (i) no (ii) no or (i) yes (ii) yes or (i) no (ii) yes..

Which of the following situations represents a number less than zero? => Rachel′s highest score in a game is 600. or Jack′s lowest score in a game is 45. or Susan′s score in a game is - 150. or Sara wins the game scoring 200 points...

At a given low concentration of CO 2 and non-limiting light intensity, the photosynthetic rate of a given plant will be equal to the total amount of respiration. The atmospheric concentration of CO 2 at which photosynthesis just compensates for respiration is referred to as the CO..

As a result of two magnetic fields acting at the same place, the resultant field has a special feature. At a particular point, if the compass needle does not point in any particular direction, then there is no net magnetic field at the point. Such a point is ..

Iso-electric Point - It is defined as the point at which a molecule exists as zwitter ion with no net charge. Thus, at this point the molecule is electrically neutral. The molecules have minimum solubility, maximum precipitability and least buffer capacity. The acidic ..

Which point does the line pass through, if the y -intercept of the line is zero? => (1, 1) or (1, 0) or (0, 1) or (0, 0)..

To devise a scale of temperature, fixed reference points (temperature) are required, with respect to which all other temperatures are measured. For both Celsius and Fahrenheit Scales of temperatures, the fixed points are as follo..