How does Leaning Tower of Pisa not fall? In the end, the Leaning Tower of Pisa does not fall because its center of gravity has been carefully kept within its base. The Leaning Tower doesn’t fall because its center of gravity is carefully kept within its base. How did Galileo discover free fall? Galileo conducted […]
What is the application of sound?
What is the application of sound? While we cannot hear ultrasonic waves, we apply them in various technologies such as sonar systems, sonograms, surgical tools, and cleaning sytems. Some animals also use ultrasonic waves in a specialized technique called echolocation that alows them to pinpoint objects and other animals, even in the dark. What are […]
How can we determine the size of the Earth?
How can we determine the size of the Earth? It was generally agreed upon that measuring the size of Earth could be done by measuring the altitude of a star from two cities situated on the same meridian. Then, a difference expressed in degrees would be found. How is the Earth’s curvature measured? How could […]
How is a nucleus formed?
How is a nucleus formed? The vesicles first fuse to form membranes around individual chromosomes, which then fuse with each other to form a complete single nucleus. What is the nucleus covered by? nuclear membrane Why nucleus is the most important organelle? The Nucleus contains the genetic material, also known as DNA, which is responsible […]
How do you find the mass of a disc?
What is the average of first 17 odd natural number?
Can coefficient of drag be greater than 1?
Can coefficient of drag be greater than 1? Two objects having the same reference area moving at the same speed through a fluid will experience a drag force proportional to their respective drag coefficients. Coefficients for unstreamlined objects can be 1 or more, for streamlined objects much less. Does drag coefficient change with size? The […]
Why do electrons want to be stable?
Why do electrons want to be stable? A complete octet is very stable because all orbitals will be full. Atoms with greater stability have less energy, so a reaction that increases the stability of the atoms will release energy in the form of heat or light. A stable arrangement is attended when the atom is […]
How much energy does it take to remove an electron from magnesium?
How much energy does it take to remove an electron from magnesium? Magnesium has the electron configuration of 1s22s22p63s2. The first two electrons are removed from the third level. The third electron is removed from the second level. Electrons in lower levels feel a greater attraction to the nucleus and are more difficult to remove….Ionization […]
Does falling snow absorb sound?
Does falling snow absorb sound? When the ground has a thick layer of fresh, fluffy snow, sound waves are readily absorbed at the snow surface, dampening sound. However, time and weather conditions may change the snow surface. Then the surface will help reflect sound waves. Sounds may seem clearer and travel farther under these circumstances. […]