What does a sharp knife cut better than a blunt one? The pressure exerted by the sharp knife edge is more than that exerted by the blunt one because the area on which force is exerted with a sharp knife is very small. Thus, it is easier to cut with the former than with the […]
Which is costly brass or bronze?
Which is costly brass or bronze? While all three contain copper, the percentage is far lower in Brass and Bronze than in pure copper as alloying elements are mixed in. This reduces the cost of brass and bronze. Bronze is usually more expensive than brass, partly due to the processes required to manufacture bronze. How […]
Can velocity be zero if acceleration is zero?
Can velocity be zero if acceleration is zero? When acceleration is zero then velocity of object can be zero or constant. The body continues to move with its velocity throughout. For e.g if a train is at rest then acceleration is zero and velocity remains zero. Why does velocity change direction zero? The velocity, that […]
What is a heterogeneous mixture?
What is a heterogeneous mixture? A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture. A heterogeneous mixture consists of two or more phases. When oil and water are combined, they do not mix evenly, but instead form two separate layers. Each of the layers is called a phase. […]
What is the application of third law of thermodynamics?
What is the application of third law of thermodynamics? The third law of thermodynamics states that the entropy of a perfect crystal at a temperature of zero Kelvin (absolute zero) is equal to zero. Entropy, denoted by ‘S’, is a measure of the disorder/randomness in a closed system. All the atoms and molecules in the […]
How is data sent through wires?
How is data sent through wires? Originally Answered: How data is transmitted through wires in the computer ? Most simply, by pulses of electricity. This is a crude analogy, but think of a light switch. You flip it on, and it sends electricity down the wire to the light. Which system uses digital transmission? Which […]
What is the main advantage of Fibre optic cables over copper cables?
What is the main advantage of Fibre optic cables over copper cables? Fiber optic cables have a core that carries light to transmit data. This allows fiber optic cables to carry signals at speeds that are only about 31 percent slower than the speed of light—faster than Cat5 or Cat6 copper cables. There is also […]
What would happen if the population of rabbits increased?
What would happen if the population of rabbits increased? There would be more food for the rabbits and slugs, so their populations would increase. However, there would be less food for the frogs and voles, so their populations would decrease. This means less food for the foxes and hawks. How did doubling the rabbit population […]
What is the pressure of 0.540 mol of an ideal gas at 35.5 L and 223 K Brainly?
Why is gravity proportional to mass?
Why is gravity proportional to mass? According to theory, the reason mass is proportional to gravity is because everything with mass emits tiny particles called gravitons. These gravitons are responsible for gravitational attraction. The more mass, the more gravitons. Most gravitons exist in a cloud around the object. What is the similarities between mass and […]