b) Calculate the force vector on the negative charge due to the positive charge A + 0.5 pm charge is placed in region of space far from any other charges. What is the magnitude of the electric field at each of these distances from the charge? (a) 5.00 nm (b) 0.55 pm If you are...
Why does the glass rod develop a positive charge when rubbed with a silk cloth, why can't it develop a negative charge? Explain how rubbing two objects together causes them to have equal and opposite charges. What happens when you walk across a ca...
These micro-pores are lined with negative charges which attract positively charged cations such as calcium (Ca+2), magnesium (Mg+2), potassium (K+) and ammonium (NH+). Some nutrients are negatively charged, including phosphate (PO4-3), sulfate (SO4-2) and nitrate (NO3–). These anions...
A battery has two ends -- a positive terminal (cathode) and a negative terminal (anode). If you connect the two terminals with wire, a circuit is formed. Electrons will flow through the wire and a current of electricity is produced. Inside the battery, a reaction between chemicals take pl...
To determine when a covalent bond acquires partial ionic character, we can follow these steps:1. Define Covalent and Ionic Bonds: - A covalent bond is formed when two atoms share electrons. This typically oc
aOne of the disadvantages to such systems is that the addition of another class (e.g., the letter F) does not simply add another step to the process, but may completely reshuffle the order in which the rules are applied, or even replace some of the rules with others. 其中一缺点对这样...
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We believe that the many negative charges on large DNA structures, and in particular on DNA origami, are very important for the activity of conjugated enzymes. Similar to polyelectrolyte films35, the pH close to the surface of a DNA nanoplate is much lower than that in the bulk solution bec...