How heavy is a gallon of gasoline? about 6.3 pounds What’s more dense gasoline or water? Water is denser than petrol, so there essentially more molecules of water in a given volume. For example in a given volume, there may be 15,000 molecules of petrol but 20,000 molecules of water. Is gas less dense than […]
Are Mirrors 100% reflective?
Are Mirrors 100% reflective? General. Domestic mirrors are not perfect mirrors as they absorb a significant portion of the light which falls on them. A simpler mirror may reflect 99.9% of the light, but may cover a broader range of wavelengths. Almost any dielectric material can act as a perfect mirror through total internal reflection. […]
How much does meat production contribute to global warming?
How much does meat production contribute to global warming? For example, for every person on the planet, there are approximately three chickens. Meat and dairy specifically accounts for around 14.5% of global greenhouse gas emissions, according to the UN’s Food and Agricultural Organization (FAO). How is eating meat bad for the environment? It causes climate […]
Why does tension increase with angle?
Why does tension increase with angle? The more horizontally aligned the cable is, the more it will pull horizontally. Thus, a decrease in the angle will increase the horizontal component of tension and an increase in the angle will decrease the horizontal component of tension. Does a larger angle mean more tension? (And in that […]
Is se a main group element?
Is se a main group element? In chemistry and physics, the main group elements are any of the chemical elements belonging to the s and p blocks of the periodic table. Specific examples of main group elements include helium, lithium, boron, carbon, nitrogen, oxygen, fluorine, and neon. What is difference UPSC and Group 1? Type […]
How do I know if I have reduced blood flow to heart?
How do I know if I have reduced blood flow to heart? If blood flow becomes impaired due to coronary artery disease, you may experience: extreme fatigue. shortness of breath. dizziness, lightheadedness, or fainting. chest pain and pressure, known as angina. heart palpitations. swelling in your legs and feet, known as edema. swelling in your […]
Which is the lightest subatomic particle?
Which is the lightest subatomic particle? Electron Where do protons get their charge? quarks What gives electrons their charge? So now we can answer your question in the language of the quantum field: the electron gets its charge by the field allowing to create one positive charge state and one negative charge state at the […]
Will evaporation be faster or slower on a cloudy day why?
Will evaporation be faster or slower on a cloudy day why? Evaporation rates are higher at higher temperatures because as temperature increases, the amount of energy necessary for evaporation decreases. In sunny, warm weather the loss of water by evaporation is greater than in cloudy and cool weather. So, sunny, hot, dry, windy conditions produce […]
What stimuli do taste and smell detect?
What stimuli do taste and smell detect? Taste (gustation) and smell (olfaction) are both chemical senses; that is, the stimuli for these senses are chemicals. The more complex sense is olfaction. Olfactory receptors are complex proteins called G protein-coupled receptors (GPCRs). Why are taste and smell called the two chemical senses? Taste (gustation) and smell […]
How does temperature and humidity affect sound?
How does temperature and humidity affect sound? The speed of sound is affected by temperature and humidity. Because it is less dense, sound passes through hot air faster than it passes through cold air. The attenuation of sound in air is affected by the relative humidity. Dry air absorbs far more acoustical energy than does […]