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 positive charge experiences a force of 0.00065 N from a negative charge of 3.9 x 10^(-4) C when placed 0.0024 meters apart. What is the amount of the positive charge? Comparing the electrostatic force and the gravitational force we can say that: Group of answer choices: a. both have...
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...
Turn the part into an anode with a positive charge Turn the metal plates into the cathode with a negative charge Submerge both in the acidic bath Apply voltage Subtract aluminum ions from the part, creating pores Attract oxygen ions to the part’s surface The reaction forms a hard,...
aOnly three dc circuit wires are required for each circuit breaker trip circuit between the control building and the substation yard—positive, negative, and trip. The trip wire can be eliminated in simple systems where only the feeder circuit protection trips the circuit breaker. The breaker dc...
Electric Charge:There are two types of electric charge, positive and negative. The force between any two point charges is inversely proportional to the square of the distance between them and directly proportional to the product of the magnitude of the two charges. The...
Around 20% of providers charge somewhere in the $501 to $1,000 range. These figures closely correspond to results from a separate study by Backlinko, which found that the average cost of a monthly SEO retainer is $497. However, the same study found that companies that spend more than $...
At the moment, your social media manager might also be in charge of content creation. But in today’s social media landscape, the roles of a manager and a creator are very different. Hiring for a role you’ve never filled before can be tricky, especially when it’s a role that’s sti...
C.Try to prevent negative thoughts and feelings from getting into the online pages.D.Strengthen ties with real-life friends instead of caring about their online image. 免费查看参考答案及解析 题目: 听下面一段较长对话,回答以下小题。【1】How often does the group meetA.Once a week.B.Once a...
Determine the partial (or full) positive and negative charges if the bond has them. Would a bond between P and P be pure covalent, polar covalent, or ionic? Explain. What is the intermolecular force that exists between a magnesium ion and...