Category: Physics

What is resistant to change? Resistance to change is the opposition to altered circumstances or modification of the status quo. Employees may resist change when they haven’t been briefed on the reasons for the change or the thinking behind the decision-making. Listening to employee concerns and ideas will help reduce resistance to change. How do […]

Can wax change without changing state? In physical changes no new materials are formed and the particles do not change apart from gaining or losing energy. Melted wax solidifies when cooled but unless it is shaped or moulded it will not be the same shape as at the start. Is melting wax reversible or irreversible? […]

How many electrons pass through a lamp in 1 minute if the current is 200? A current of 200 mA is flowing through the lamp. One ampere is the current that flows through the lamp when one coulomb of charge passes in one second. The charge of an electron is 1.602*10^-19 C. How many electrons […]

How much does 12 inches of snow weigh? To calculate the weight of snow, you take 7.48 gallons of per cubic foot of water, which is about 62.4 pounds. You then divide it by the amount of snow (in inches). Light and fluffy snow weigh the least. If it snows 12” of light and fluffy […]

What is the wavelength of a sound wave? For sound waves in air, the speed of sound is 343 m/s (at room temperature and atmospheric pressure). The wavelengths of sound frequencies audible to the human ear (20 Hz–20 kHz) are thus between approximately 17 m and 17 mm, respectively. What is the correct order of […]

What is the negative of a number is called? The negative version of a positive number is referred to as its negation. For example, −3 is the negation of the positive number 3. The sum of a number and its negation is equal to zero: 3 + (−3) = 0. What are the 10 negative […]

Are high back boosters safer than backless? Consumer Reports says high-backed boosters are safer than backless ones because they do a better job of properly positioning the seat belt across the child’s chest, hips and thighs. The Centers for Disease Control and Prevention says booster seats can reduce a child’s risk of serious injury by […]

How far can you run conduit without a box? You can go as many feet as you want.. the code only restricts the number of bends between boxes or fittings like a LB to (360) degrees.. What is the maximum adapter bends for everyone run or tubing? It is impractical, and prohibited by wiring regulations, […]

Which process is known as onion peeling? Exfoliation is type of mechanical weathering, it is also known as onion weathering. The exfoliation refers to peeling off concentric shells of rocks due to combined actions of heat and wind in hot arid and semi-arid regions and monsoon lands. What is the onion skin? Onionskin or onion […]

Can you wait on a double yellow line? Double yellow lines indicate a prohibition of waiting at any time even if there are no upright signs. You MUST NOT wait or park, or stop to set down and pick up passengers, on school entrance markings (see ‘Road markings’) when upright signs indicate a prohibition of […]