Category: Physics

How much does it cost to fix hydrostatic pressure? Fixing this is between $350 and $500 per crack. Hydrostatic pressure is a different story. This is pressure that builds up underground when the water has nowhere to go. It forces itself up and through your foundation, often causing cracks. How do you know if you […]

What is the symbol of luminous flux? symbol ϕ What is luminous flux in LED? Luminous flux is a measure of the power of visible light produced by a light source or light fitting. It is measured in lumens (lm). Note that luminous flux only relates to the perceived power of light. What is the […]

Will a heavier ball roll farther than a lighter ball? The heavy one would only roll farther if they had the same acceleration. OP said that the two balls are pushed with the same energy (I assume he means force). If you use to same amount of energy to push both balls, the lighter ball […]

What is a genotype vs phenotype? A genotype refers to the genetic characteristics of an organism. A phenotype refers to the physical characteristics. For example, having blue eyes (an autosomal recessive trait) is a phenotype; lacking the gene for brown eyes is a genotype. What gametes can be produced by AaBb? There are four possible […]

Is Short Track Speed Skating dangerous? Horrific short track speedskating injuries are far from uncommon. A few studies have reported on the high frequency of injuries to the head, spine, and extremities—with a sizable percentage of these identified as severe. Who is the fastest skater in the world? Kjeld Nuis Who is the fastest roller […]

Where can I get negative ions? Negative ions exist in nature in tons of places, including: ultraviolet (UV) rays from the sun. discharges of electricity in the air after a thunderclap or lightning strike. wherever water collides with itself like a waterfall or the ocean shore (creating the Lenard effect) How can I get negative […]

Which is the perpetual source of energy? Perpetual energy may refer to: Perpetual motion, the property of an imaginary device that, once started, continues to move forever with no input of external energy. Renewable energy, energy collected from resources that are naturally replenished on a human timescale. Is gravity perpetual motion? It is true that […]

How dangerous is a radon level of 7? Radon Risk If You Have Never Smoked Radon Level If 1,000 people who never smoked were exposed to this level over a lifetime*… 10 pCi/L About 18 people could get lung cancer 8 pCi/L About 15 people could get lung cancer 4 pCi/L About 7 people could […]

How did the civil rights movement achieve some of its goals of equality? Civil Rights Act of 1964 King and other civil rights activists witnessed the signing. The law guaranteed equal employment for all, limited the use of voter literacy tests and allowed federal authorities to ensure public facilities were integrated. What strategies were used […]

What is the relationship between the applied force and acceleration? Newton’s second law shows that there is a direct relationship between force and acceleration. The greater the force that is applied to an object of a given mass, the more the object will accelerate. For example, doubling the force on the object doubles its acceleration. […]