Category: Physics

What is the charge for calcium ion? 2 What type of ion does calcium form? Calcium, Ca Calcium is also in Group 2. It has two electrons in its outer shell. When these electrons are lost, a calcium ion, Ca 2+, is formed. A calcium ion has the same electronic structure as an argon atom […]

What is a good weight to curl? According to Weis, men up to 120 pounds should be able to curl 70 pounds; men 121 to 135 pounds should be able to lift 85 pounds; men 136 to 155 pounds should ideally lift 105; men 156 to 170 pounds should lift 120 pounds; men 171 to […]

How do I build cycling endurance? 10 Ways To Increase Endurance In Cycling. Be Realistic. The first thing to do is to be realistic about your starting point and not go too hard at the beginning. Bike Riding Technique. Increase Length Rides. Train On Hills. Interval Training Sessions. Previous Alimentation. During Cycling Alimentation. Be Consistent. […]

What are the causes and effects of eutrophication? “Eutrophication is an enrichment of water by nutrient salts that causes structural changes to the ecosystem such as: increased production of algae and aquatic plants, depletion of fish species, general deterioration of water quality and other effects that reduce and preclude use”. What can humans do to […]

Is tens AC or DC? A standard TENS unit typically delivers a low-frequency (<50 Hz) alternating current to a focused treatment area. Due to the nature of low-frequency, however, these signals have a low capacity to overcome skin resistance – resulting in these units only providing pain relief via the Gate Control Theory while being […]

Why is the potential energy of a free particle zero? In quantum mechanics, it means the particle is in a region of uniform potential, usually set to zero in the region of interest since the potential can be arbitrarily set to zero at any point in space. … What is the energy of a free […]

Is acetone the same as hydrogen peroxide? Based on our research, we conclude that it does depend on the use of the solvent. For example, if you wanted to get rid of a toothache, the Hydrogen Peroxide would be best because it can clean, and lower the pain, but if it was to thin out […]

How do muscles get oxygen? Oxygen is supplied to the muscles via red blood cells. Red blood cells carry hemoglobin which oxygen bonds with as the hemoglobin rich blood cells pass through the blood vessels of the lungs. The now oxygen rich blood cells carry that oxygen to the cells that are demanding it, in […]

Why can some mixtures be separated by chromatography? Chromatography can be used to separate mixtures of coloured compounds . As the solvent soaks up the paper, it carries the mixtures with it. Different components of the mixture will move at different rates. This separates the mixture out. How many main ways are there to separate […]

Is it bad to be emotionally dependent? Though emotional dependence stems from a lack of self-esteem, it’s also a self-esteem destroyer of its own, undermining our confidence subtly and over time. When we become too dependent emotionally on our spouse or partner, we run the risk of losing the person that we love by losing […]