How many Ptolemies were there? fifteen Ptolemaic Who ruled Egypt after the Romans? The Late Period of Ancient Egyptian history came to an end in 332 BC when Egypt was conquered by the Greeks. The Greeks formed their own dynasty called the Ptolemaic Dynasty that ruled for nearly 300 years until 30 BC. In 30 […]
How gravity affects the movement of object?
How gravity affects the movement of object? On Earth, gravity pulls all objects to Earth’s center. Gravity acts on all masses equally, even though the effects on both masses may be different because gravity causes all objects to fall at the same constant rate of 9.8 m/s2. An object in free fall means that the […]
What are the major types of work?
What are the major types of work? First, let’s take a look at the five kinds of work we do every day: Reactionary Work. Planning Work. Procedural Work. Insecurity Work. Problem-Solving Work. How many types of work do we have? Four Types What is considered an IT project? An information technology project is a temporary […]
Does ozone kill bugs?
Does ozone kill bugs? This extra oxygen atom gives the molecule its ozone gas a very effective and powerful oxidizing power to kill insects, mold spores, mold growth, and odors such as pet odors and smoking odors. Bug-killing ozone gas returns to normal oxygen in about 30 to 45 minutes after turning off the ozone […]
What is Zn plus S?
What is Zn plus S? Names: Zinc sulfide , Zincblende , Wurtzite show more. Appearance: White-to-yellow crystals or powder. Is Zn a reactant? A reactant is a substance that is present at the start of a chemical reaction. The substance(s) to the right of the arrow are called products. In the equation above, the zinc […]
What are disadvantages of DC?
What are disadvantages of DC? Disadvantages of DC Transmission: Due to commutation problem, electric power can’t be produced at High (DC) Voltage. In High Voltage transmission, we cant step-up the level of DC Voltage (As Transformer won’t work on DC). There is a limitation of DC switches and circuit breakers (and they are costly too). […]
What is an example of state-dependent memory?
What is an example of state-dependent memory? State-dependent memory refers to improved recall of specific episodes or information when cues relating to emotional and physical state are the same during encoding and retrieval. For example, a person may be alert, tired, happy, sad, drunk or sober when the information was encoded. … What are the […]
What is the best earthquake warning app?
What is the best earthquake warning app? MyShake. The MyShake app was developed by the UC Berkeley Seismology Lab (California). In addition to providing alerts for earthquakes, safety tips, and maps, the app uses your phone to help detect earthquakes. Can iPhone detect earthquake? Your iPhone, iPad and most newer mobile phones can work as […]
Should bread be baked in the middle of the oven?
How can you reduce unwanted energy transfers in a machine with moving touching components?
How can you reduce unwanted energy transfers in a machine with moving touching components? Mechanical devices can be made more efficient through lubrication to reduce the friction between moving parts of a machine and increase the amount of useful energy transferred. Can you put too much insulation in your attic? It is possible to over-insulate […]