Category: Physics

What happens to potatoes when boiled? In contrast to oven baking, when potatoes are boiled the starch granules absorb not only the internal moisture but also some of the surrounding water. This causes the starch granules to rupture and spill their moist starchy contents, resulting in mashed potatoes that are wet and pasty. Should you […]

What is the magnetic field intensity inside the current carrying solenoid? is zero at all points. What kind of current is produced by current carrying solenoid? Answer. Answer: when we pass current through a solenoid, it produces a magnetic field similar to a bar magnet. What means solenoid? : a coil of wire usually in […]

What is the effect of grazing in our environment? Grazing can damage habitats, destroy native plants and cause soil erosion. When livestock eat native plants, invasive plants often replace them. This reduces food supply in ecosystems because the animals start competing for non-invasive plants for food. Is a grazing animal? In agriculture, grazing is a […]

What is the weakest carbon carbon bond? Alkyne What are the 4 main carbon stores? Carbon is stored on our planet in the following major sinks (1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere; (3) as organic matter in soils; (4) […]

Why does the outer shape of our earth keep on changing? The Earth’s shape changes because the climate events like El Nino shift where the mass of water is stored: in oceans, continents and the atmosphere. What are 4 processes that shape Earth’s surface? Explanation: The four common Planet Surface Processes are: Cratering, Volcanoes, Erosion, […]

Which type of igneous rocks based on composition has the highest amount of silica content? Compilations of many rock analyses show that rhyolite and granite are felsic, with an average silica content of about 72 percent; syenite, diorite, and monzonite are intermediate, with an average silica content of 59 percent; gabbro and basalt are mafic, […]

What is the longest running radio show in history? the Grand Ole Opry How many people listened to the radio in the 1930s? For the radio, the 1930s was a golden age. At the start of the decade 12 million American households owned a radio, and by 1939 this total had exploded to more than […]

Is P and N directly proportional? Boyle’s law states that pressure (P) and volume (V) are inversely proportional. Gay-Lussac’s law states that pressure (P) and temperature (T) are directly proportional. Avagadro’s law states that the amount (n) of a substance is directly proportional to the volume (V). How do you solve for V in PV […]

Why does river discharge increase downstream? Changes Downstream As one moves along a stream in the downstream direction: Discharge increases, as noted above, because water is added to the stream from tributary streams and groundwater. As discharge increases, the width, depth, and average velocity of the stream increase. Why are river profiles concave? River profiles […]

What are 4 methods of determining population size? Four methods of determining population size are direct and indirect observations, sampling, and mark-and-recapture studies. What are the two primary parameters used to describe a population? Within a particular habitat, a population can be characterized by its population size (N), the total number of individuals, and its […]