Category: Physics

What causes Oxbow? An oxbow lake forms when a river creates a meander, due to the river’s eroding bank . After a long period of time, the meander becomes very curved, and eventually the neck of the meander becomes narrower and the river cuts through the neck by sedimentation of silt, cutting off the meander […]

Is Van de Graaff generator a capacitor? A leyden jar is a storage capacitor which can withstand very large voltages. A van de graaf generator is a charge pump which can generate large voltages, but at very small currents. When you connect a van de graaf to a leyden jar, the jar accumulates the energy […]

What happens if the Senate and House pass different versions of a bill? If the House and Senate pass the same bill then it is sent to the President. If the House and Senate pass different bills they are sent to Conference Committee. Most major legislation goes to a Conference Committee. Why do the House […]

What is inside of a ping pong ball? Celluloid is a thermoplastic made from nitrocellulose and camphor. Sometimes dyes and stabilizers are added. A typical ping pong ball might consist of 70% to 80% nitrocellulose, with up to 30% camphor. Small amounts of dye, ethanol, and stabilizers make the ball colorful, more stable, and less […]

What three things are required for photosynthesis? To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis. Carbon dioxide enters through tiny holes in a plant’s leaves, flowers, branches, stems, and roots. Plants also require water to make their food. Is it OK for plant roots to be exposed? If the […]

What is a good attack angle? While there are exceptions, this is my basic formula for players in college or pro ball: If the hitter’s peak exit velocity is under 105 mph, their attack angle should be between 5 and 15 degrees. If their peak exit velocity is above 105 mph, it should be between […]

What are the advantages of observation in research? The biggest advantage of observational research has already been noted: it enables businesses to observe potential customers in a natural setting, which can reveal penetrating insights unavailable through other methods such as focus groups and surveys. What are the advantages and disadvantages of a survey? Advantages of […]

How close is the asteroid to Earth 2020? The asteroid, called 2020 HS7, is between 13 and 24 feet (4 to 8 meters) in size and passed Earth at a distance of 23,000 miles (36,400 kilometers) when it made its closest approach at 2:51 p.m. EDT (1851 GMT). What would NASA do if an asteroid? […]

How do you describe a function? A function is a relation in which each possible input value leads to exactly one output value. We say “the output is a function of the input.” The input values make up the domain, and the output values make up the range. What are the qualities of a function? […]

What is the formation of the planets? According to our current knowledge, planets are formed around a new star by condensing in a disc of molecular gas and dust, embedded within a larger molecular cloud. Condensation increases until they become giant planets, which are heated, then cleanse their orbits in the disc and possibly bend […]