Category: Physics

Does a chemical reaction occur when boiling water? Answer and Explanation: No, boiling water is NOT a chemical reaction, but it is a physical change. When water, H2 O, is in liquid form, it can be heated to a boil. Is Steam a chemical reaction? A physical reaction causes the matter to shift shape or […]

What color dissipates heat the fastest? black What material stays cool in the heat? Since then, they and other researchers have made a host of materials, including films, spray paints and treated wood, that stay cool in the heat. These materials all rely on enhancing a natural heat-shedding effect known as passive radiative cooling. What […]

Is monoculture good or bad? Higher Revenues. By growing monoculture plants, farmers usually benefit from higher profits. For example, cultivating a single kind of crop that is best suited to development in specific climate conditions, allows the farmer to get better yields and, therefore, get higher income. Is monoculture farming sustainable? And the approach to […]

How hard is 30 HRC? 30 HRC is the hardness of the steel. It’s not a type of steel. That being said, 30 HRC is atrociously soft. Its edge would dull very quickly if you used it to cut anything. Which is harder HRB or HRC? The Rockwell C scale is usually abbreviated HRC (Hardness […]

How is flux calculated? The total of the electric flux out of a closed surface is equal to the charge enclosed divided by the permittivity. The electric flux through an area is defined as the electric field multiplied by the area of the surface projected in a plane perpendicular to the field. How does the […]

What makes a gun so powerful? The momentum imparted to the bullet by the gun is what makes a gun able to do so much damage. The momentum of an object equals its mass times its velocity. The momentum of an object, and therefore its ability to cause destruction, can be increased by making the […]

Which best describes the type of bond shown? Answer : The correct option is, (D) an covalent bond between the atoms. What produces an ionic bond? Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence […]

What is the first thing you need to do when drawing Lewis structures? How to Draw a Lewis Structure Step 1: Find the Total Number of Valence Electrons. Step 2: Find the Number of Electrons Needed to Make the Atoms “Happy” Step 3: Determine the Number of Bonds in the Molecule. Step 4: Choose a […]

Which soil is known as black soil? black soils known locally as regur. After those the alluvial soil is the third most-common type. Also significant are the desert soils of Rajasthan, the saline soils in Gujarat, southern Rajasthan, and some coastal areas, and the mountain soils of the Himalayas. The type of soil is determined […]

What forces act on a ball? The forces are the weight, drag, and lift. Lift and drag are actually two components of a single aerodynamic force acting on the ball. What kind of force is wind? In summary, the wind is controlled by the pressure gradient force (differences in barometric pressure), the Coriolis Force and […]