radio controlled model plane

fig.12.1 - Space Models of 2-Butenes Note that the atoms are arranged in two different ways in I and II. The two CH 3 groups lie on the same side in I and on the opposite sides in II. When two similar atoms or groups lie on the same side, the isomerism is called cis isomerism a..

Ernest Rutherford, an energetic New Zealander working in England, was studying the properties of particles spontaneously emitted by radioactive substances. Of particular interest was a positively charged, relatively heavy emission named alpha particle. Quantities of such particles are emitted by c..

It is a double helix with two right handed helical polydeoxy ribonucleotide strands twisted around the same central axis. The two strands are antiparallel. The phosphodiester linkages of one of these strands runs in 5' to 3' direction while the other strand runs in 3' to 5' direction. The base..

Which of these is best modeled by a sheet of paper? => plane or quadrant or line or point..

Diffraction in sound waves and radio waves are readings observed as they have a relatively longer wavelength compared to light wave..

This type of wave propagation is said to be unguided. The uniform plane wave exists throughout all space. The electromagnetic energy associated with the wave spreads over a wide area. Wave propagation in unbounded media is used in radio or TV broadcasting where the information ..

Apart from sailboats, air in motion has other application. Wind gives the necessary upward lift to keep an aircraft afloat. Aeroplane and Glider A glider depends on the wind energy for its flight. Special surfaces on the wings of the planes can be manipulated by the pilot to change the wa..

Conclusion - Rutherford's alpha particle scattering experiment explained the structure of atom and the size of nucleus. The Bohr's model explained the hydrogen spectrum. Radioactivity occurs due to nuclei being unstable resulting in the emission of three types of radiations having differe..

In all the above examples, a machine either multiplies or reduces the effect of the force that is applied. A bicycle is a machine which is used to gain speed. We gain speed by exerting additional force. When we try to ride a bicycle up a steep hill, we soon realize that we gain speed by applying gr..

Simple Machines - In all the above examples, a machine either multiplies or reduces the effect of the force that is applied. A bicycle is a machine which is used to gain speed. We gain speed by exerting additional force. When we try to ride a bicycle up a steep hill, we soon realize that we gain sp..