Category: Physics

How many natural realms are there what are they? The Four Great Realms: The natural systems encountered in physical geography operate within the four great realms, or spheres, of the Earth. These are the atmosphere; the lithosphere, the hydrosphere, and the biosphere. What are the 3 realms of earth? 3 — EARTH SURFACE REALMS. We […]

What three things can change velocity? An object can change velocity in a number of ways: it can slow down, it can speed up, or it can change direction. A change in speed, or a change in direction, or a change in both speed and direction means that the object has a change in velocity. […]

Is the Carnot cycle 100% efficient? No,, never . It can be 100℅ only if the sink temperature is zero or the source temperature is infinite (very large value). Carnot is an ideal cycle is provides benchmark to compare efficiency of other cycles. Carnot efficiency is the maximum efficiency that can be achieved in a […]

Which country has the best destroyers? Military > Navy > Destroyers: Countries Compared # COUNTRY AMOUNT 1 United States 62 2 China 27 3 India 15 4 Russia 14 What is the most heavily armed ship? Yamato-class Battleship Ford-class may be the most heavily armed ships by modern standards, but if one is to simply […]

Why do we need to follow Seat Belts Use Act? Seat belts reduce serious crash-related injuries and deaths by about half, according to the National Highway Traffic Safety Administration. The simple act of wearing a seat belt is the single most effective way to reduce the risk of fatality in a crash. Why are seat […]

What were two major shortcomings of Mendeleev periodic table? State two limitations of Mendeleev Periodic Table Elements with large differences in properties were included in the same group. No proper position could be given to the element hydrogen. The increasing order of atomic mass was not strictly followed throughout. How were the drawbacks removed in […]

Are 2s and 2p degenerate? The 2s and 2p orbitals have the same energy for hydrogen. They are said to be degenerate energy levels, all the same. When the electron is held in the 1s orbital, it is said to be in its ground state, its lowest energy state. When the electron is a higher […]

Why are evenings cooler than afternoons? Answer. Because in afternoon the sun is on the top and the rays of sunshine comes direct to the earth so we feel warmer and in morning and evening the sun is slightly to the earth so we feel colder then afternoon. Why does the coolest temperature of the […]

What are the origin of the universe? The best-supported theory of our universe’s origin centers on an event known as the big bang. This theory was born of the observation that other galaxies are moving away from our own at great speed in all directions, as if they had all been propelled by an ancient […]

Which system will lift the weight most easily? pulley system Where do you see pulleys in everyday life? Examples of Pulleys in Everyday Life Elevators. Elevators work via a powerful electronic pulley system. Wells. Exercise Machines. Construction Pulleys. Theater Systems. What are examples of pulleys in your house? Examples of pulleys that can be found […]