Category: Physics

How long does it take for iron to rust in salt water? it will start almost immediately, and may progress at a rate of around 1/2mm per year. This rate will vary depending on the alloy and water conditions. How do you speed up the rusting process? Direct sunlight helps speed up the rusting process. […]

What is an example of natural erosion? Rain, rivers, floods, lakes, and the ocean carry away bits of soil and sand and slowly wash away the sediment. Rainfall produces four types of soil erosion: splash erosion, sheet erosion, rill erosion, and gully erosion. How do geotextiles prevent erosion? Geotextiles Definition: They are permeable fabrics which, […]

How can you increase the solubility of a solution? For many solids dissolved in liquid water, the solubility increases with temperature. The increase in kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractions. How do you recover solutes […]

How many watts does it take to lift 1kg? 10 Watts What force is needed to accelerate a 2 kg mass at 1m sec? A newton is defined as the amount of force that it takes to accelerate one kilogram (1 kg) of mass one meter per second squared (1 m/s2). How do you calculate […]

What happens if you cover half of a lens? Cover half the lens If we cover the top half of the lens, the image just gets dimmer. This tells us that light from all parts of the object goes through all of the lens and then forms the image, so we’re losing about half the […]

Can Superman beat Hulk? Superman has beaten Hulk before in the comics, as we’ve seen in the Marvel vs. However, while the two characters can match each other in strength with Hulk eventually growing stronger than Superman, the Man of Steel has far too many other powers that could help take Hulk out before he […]

What are regular and irregular lines in a poem? The term stanza is similar to strophe, though strophe sometimes refers to an irregular set of lines, as opposed to regular, rhymed stanzas. The stanza in poetry is analogous with the paragraph that is seen in prose; related thoughts are grouped into units. What is the […]

Can I use a 60 watt bulb in a 40 watt lamp? A 60 watt equivalent uses 9 watts so yes you can use this in a socket rated for a 40 watt incandescent. Check that the socket and the wiring are in good condition because the base of the LED likely will be hot […]

Which is better echelon or mirror? When compared to each other, the Echelon Reflect is far cheaper than the MIRROR and stands out due to its fascinating list of features. The 40-inch model is cheaper than anything MIRROR has to offer and it still comes with a world-class set of live workout options. Can the […]

Can magnets attract without touching? Magnetic forces are non contact forces; they pull or push on objects without touching them. Magnets are only attracted to a few ‘magnetic’ metals and not all matter. Magnets are attracted to and repel other magnets. What do you call the two endpoints of a magnet? The end that faces […]