Category: Physics

What is better 2 stroke or 4 stroke? Because 2-stroke engines are designed to run at a higher RPM, they also tend to wear out faster; a 4-stroke engine is generally more durable. That being said, 2-stroke engines are more powerful. Two-stroke engines are a much simpler design, making them easier to fix. They do […]

What is the soft weak and plastic like layer? The movement of the lithospheric plates is facilitated by a soft, weak and plastic-like layer is called asthenosphere. Do the plates in this activity have the same density? Answer. Answer: Explanation: They are denser compared to continental crust, meaning they have more mass per unit volume. […]

Why do plants start to grow in the cracks of cooled and hardened lava? Soil forms from rocks when they are slowly broken down by wind and rain. So the main change that has to occur to the surface of a volcano in order for most plants to grow is that the lava rocks have […]

How energy and heat are related? Heat is energy transferred between substances or systems due to a temperature difference between them, according to Energy Education. As a form of energy, heat is conserved, i.e., it cannot be created or destroyed. It can, however, be transferred from one place to another. What’s the difference between thermal […]

How bad is empty nest syndrome? The big thing about it is that, even though you may experience a little bit of grief or loneliness, or people think that’s okay, it can turn into very severe depression, anxiety, loss of purpose, things like that. What are 3 key characteristics of empty nesters? Now your last […]

What is the sum of two vectors called? The resultant is the vector sum of two or more vectors. If two or more velocity vectors are added, then the result is a resultant velocity. If two or more force vectors are added, then the result is a resultant force. Can the resultant of two unequal […]

What is the deadliest volcanic eruption? Here are the five deadliest volcanoes in history: Tambora, Indonesia (1815) The largest recorded volcanic eruption in history, Tambora caused enough starvation and disease to kill approximately 80,000 people. Krakatau, Indonesia (1883) Pelée, Martinique (1902) Ruiz, Colombia (1985) Unzen, Japan (1792) Did Pompeii have a tsunami? Although records suggest […]

How can you tell how deep a well is dropping a rock? One method for determining the depth of a well is to drop a stone into it and then measure the time it takes until the splash is heard. If d is the depth of the well (in feet) and t1 the time (in […]

Why do we need social control? Social control is necessary to protect social interests and satisfy common needs. If social control is removed and every individual is left to behave freely society would be reduced to a state of jungle. What are the types of social control? Social control refers to societal and political mechanisms […]

Is flat soda OK to drink? “Carbonated drinks, flat or otherwise, including cola, provide inadequate fluid and electrolyte replacement and cannot be recommended,” they said. THE BOTTOM LINE: Flat soda, a popular remedy for upset stomach, may do more harm than good. How fast does soda go flat? Soda will keep better if several servings […]