Category: Physics

Is Japan still recovering from the 2011 tsunami? TOKYO (AP) — Ten years after a massive earthquake and tsunami devastated Japan’s northeastern coast, triggering meltdowns at the Fukushima nuclear power plant, much has been achieved in disaster-hit areas but they are still recovering. The magnitude 9.0 earthquake was one of the strongest temblors on record. […]

Where does wax go when you burn it? When candles burn, most of their matter goes into the air. The light and heat from a candle comes from the wax burning. When you light the wick, the flame causes some of the wax to melt, flow up the wick and evaporate, and then the wax […]

When current is increasing in the coil the direction of induced emf is the direction of current? (a) Magnetic field due to a straight wire is linearly proportional to electric current through it. Since current is increasing, the magnetic field also increases which results in induction of current in the coil. Applying Lenz law, the […]

Which pair of elements are likely to form ionic? Ionic compounds generally form between elements that are metals and elements that are nonmetals. For example, the metal calcium (Ca) and the nonmetal chlorine (Cl) form the ionic compound calcium chloride (CaCl2). In this compound, there are two negative chloride ions for each positive calcium ion. […]

How long after sunset Can you see the moon? (Sometimes, the new Moon is directly in front of the Sun, in which case we’d see a solar eclipse.) One or two days after the date of the new Moon, we can see it in the western sky as a thin crescent setting just after sunset. […]

What is the importance of reflective practice in nursing? It allows you to recognize your own strengths and weakness, and use this to guide on-going learning. By reflection you will develop your skills in self-directed learning, improve motivation, and improve the quality of care you are able to provide. How reflective practice can benefit your […]

How do you find the direction of a vector given two points? Find A Direction Vector When Given Two Points : Example Question #3. Find the vector that has the initial point and the terminal point . Explanation: To find the directional vector, subtract the coordinates of the initial point from the coordinates of the […]

Is Ocean Energy expensive? The World Renewable Energy Report estimates the cost of wave energy at an average of 9 cents/kWh and tidal and current an average of 8 cents/kWh. Recent EPRI reports have found that, presently, the cost of power from ocean technologies ranges from 7 cents to 16 cents/kw in a low case […]

What happens if you drink liquid helium? Although helium is nontoxic and inert, it can act as a simple asphyxiant by displacing the oxygen in air to levels below that required to support life. Inhalation of helium in excessive amounts can cause dizziness, nausea, vomiting, loss of consciousness and death. What is colder than liquid […]

How do you describe electromagnetic waves? Definition: Electromagnetic waves or EM waves are waves that are created as a result of vibrations between an electric field and a magnetic field. In other words, EM waves are composed of oscillating magnetic and electric fields. How can I tell if my Himalayan salt lamp is real? An […]