Category: Physics

Do objects float better in hot or cold water? Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density. Hot water is less dense and will float on room-temperature water. Cold water is more dense and will sink in room-temperature water. […]

What did Prince Henry discover? After procuring the new caravel ship, Henry was responsible for the early development of Portuguese exploration and maritime trade with other continents through the systematic exploration of Western Africa, the islands of the Atlantic Ocean, and the search for new routes. Who went to Prince Henry’s navigation school? The last […]

Which of the following is an example of convection? Everyday Examples of Convection radiator – A radiator puts warm air out at the top and draws in cooler air at the bottom. steaming cup of hot tea – The steam you see when drinking a cup of hot tea indicates that heat is being transferred […]

What are the 5 biomes in the nether? Nether Biomes: Basalt Delta, Crimson Forest, Nether Wastes, Soul Sand Valley, Warped Forest. Previously, the Nether looked pretty much the same no matter where you went. Is Netherite in bedrock? With the new Nether update for Minecraft, the strongest material in the game has shifted from Diamond […]

Why is there no Coriolis force at the equator? Because there is no turning of the surface of the Earth (sense of rotation) underneath a horizontally and freely moving object at the equator, there is no curving of the object’s path as measured relative to Earth’s surface. The object’s path is straight, that is, there […]

Where is the location of Sun in Milky Way galaxy? Bottom line: The sun is about 1/3 the distance from the center of the Milky Way galaxy to its outer edges. It’s located in a smaller spiral arm, between two large arms, called the Orion Arm. Where are we located in the Milky Way quizlet? […]

What is the formula for NH4 and O? NH₄⁺ Is NH4 an acid or base? Weak base dissociation eg NH3 NH3 is a weak base and dissociates partially in solution (as indicated with reversible arrow) to form OH- and NH4+ ions. Since this is a reversible process, NH4+ can donate H+ to form back NH3. […]

What particle size is the easiest to erode? In a stream, the most easily eroded particles are small sand grains between 0.2 mm and 0.5 mm. Anything smaller or larger requires a higher water velocity to be eroded and entrained in the flow. What increases the size of particles carried increases? The average velocity (speed) […]

Why did I gain 5 lbs overnight? What Makes You Gain Weight Overnight? Many different things, such as water retention due to sodium, hormones, meal timing, and stress can make you gain weight overnight. The reason people gain weight after a night of eating out is most likely due to increased sodium and carbohydrate intake. […]

What is the direction of acceleration of a particle in a uniform circular motion? An object undergoing uniform circular motion is moving with a constant speed. Nonetheless, it is accelerating due to its change in direction. The direction of the acceleration is inwards. The animation at the right depicts this by means of a vector […]