Category: Physics

Can the brain run out of space? In one sense, yes. Memory depends on forming new neural connections, and the brain has a finite number of neurones and a limited space in which to add more connections between them. Yet in another sense a healthy brain can never stop learning. There is really no such […]

What volume is shown in this graduated cylinder? Explanation: On this graduated cylinder there are 5 tick marks from 10 mL to 15 mL, so each tick mark represents 1 mL. The bottom of the meniscus is halfway between the tick marks representing 13 and 14 mL, so the best estimate of the volume is […]

What is the wavelength of light emitted from the N 4 to N 3? Electron Transition Energy (J) Wavelength (Meters) n=4 to n=3 1.06 x 10-19 1.875 x 10-6 n=5 to n=3 1.55 x 10-19 1.282 x 10-6 Balmer Series (to n=2) n=3 to n=2 3.03 x 10-19 6.56 x 10-7 What is the significance […]

What is the advantage of a distance-time graph? (i) It tells us about the position of the body at any instance of time. (ii) From the graph, we can see the distance covered by the body during a particular interval of time. (iii) It also gives us information about the velocity of the body at […]

What are the base units the SI units are based on number? It comprises a coherent system of units of measurement starting with seven base units, which are the second (the unit of time with the symbol s), metre (length, m), kilogram (mass, kg), ampere (electric current, A), kelvin (thermodynamic temperature, K), mole (amount of […]

What can I say instead of like? Thankfully, there are plenty of filler words you can use without the stigma. In place of “like,” try, “for example,” “say,” “nearly,” or “about.” Eventually, you may want to correct for additional words altogether, but for now, use these words as a crutch to stop using “like.” How […]

What are the pros and cons of mechanical energy? Advantages of Mechanical Energy are that this energy source does not run out and can also be converted into other forms of energy. Disadvantages of Mechanical Energy is that the machines that let you have the benefits of Mechanical Energy can create safety issues and also […]

How many years does it take limestone to form? Sources of Limestone in the Future It takes about 2 years to build a new cement plant, and the permitting process can take much longer – 8 to 10 years. What is the effect of limestone? The benefits and effects of limestone: High in calcium: Helps […]

What are the qualities of a good software? It can be measured on: Budget. Usability. Efficiency. Correctness. Functionality. Dependability. Security. Safety. Are two kinds of software products? There are two types of software : System software. Application software. Why is requirements elicitation a difficult task? Sometimes, Stakeholders or users are unable to specify or clearly […]

Which is the low frequency noise? Low frequency noise, considered as the frequency range from about 10Hz to 200Hz, causes extreme distress to a number of people who are sensitive to its effects. The noise levels are often low, in the region of a subject’s hearing threshold, where there are large differences between individuals. How […]