Category: Physics

Did they used to spray kids with DDT? Is it safe? DDT was sprayed in America in the 1950’s as children played in the spray, and up to 80,000 tons a year were sprayed on American crops. There is some research suggesting that it could lead to premature births, but humans are far better off […]

What is the electron group geometry of cl2o? Structure. The structure of dichlorine monoxide is similar to that of water and hypochlorous acid, with the molecule adopting a bent molecular geometry (due to the lone pairs on the oxygen) and resulting in C2V molecular symmetry. How many electron groups are in SF2? Each bond uses […]

What are some examples of decomposers? Examples of Decomposers in Terrestrial Ecosystems Beetle: type of shredder that eats and digests detritus. Earthworm: type of shredder that eats and digests detritus. Millipede: type of shredder that eats and digests detritus. Mushroom: type of fungi that grows out of the ground or the dead material it’s feeding […]

Is NaCl acidic or basic? A salt that is derived from the reaction of a strong acid with a strong base forms a solution that has a pH of 7. An example is sodium chloride, formed from the neutralization of HCl by NaOH….Salts That Form Neutral Solutions. Salt formed from: Salt Solution Weak acid + […]

What are the evidences of continental drift theory? In the early part of the 20th century, scientists began to put together evidence that the continents could move around on Earth’s surface. The evidence for continental drift included the fit of the continents; the distribution of ancient fossils, rocks, and mountain ranges; and the locations of […]

What is my healthy weight? Adult BMI Calculator BMI Weight Status Below 18.5 Underweight 18.5—24.9 Normal 25.0—29.9 Overweight 30.0 and Above Obese How much should I weigh for my frame size? Ideal Body Weight Add 5 pounds for every inch over 5 feet that you are. With this number you can subtract 10% for small […]

Why the power magnet is concentrated at the pole? The magnetic field of a bar magnet is strongest at either pole of the magnet. The force is weaker in the middle of the magnet and halfway between the pole and the center. The magnetic field gets weaker the further you get from either pole, so […]

Which three structures are sensory receptors found in the skin? The cutaneous receptors’ are the types of sensory receptor found in the dermis or epidermis. They are a part of the somatosensory system. Cutaneous receptors include cutaneous mechanoreceptors, nociceptors (pain) and thermoreceptors (temperature). What are the different sensory receptors in the skin? Sensory receptors exist […]

How do you talk to someone who won t open? Top techniques on how to get loved ones to open up Build up trust. Building up trust with the person you are talking to is the most fundamental thing you can do. Pick your moment. Remove your own authority. Focus on the unspoken clues. Don’t […]

What are examples of reactants? Examples of Reactants The wax of a candle and oxygen in air are reactants in a combustion reaction. When you burn methane gas, the reactants are methane (CH4) and oxygen in air (O2). When water forms from its elements, the reactants are hydrogen (H2) and oxygen (O2) gas. What are […]