When we push a wall no work is done? In this case the wall does not displace from its position even though the force is applied and since displacement is zero work done is said to be zero. Is pushing against a wall work? Note that forces without motion do no work. For example, if […]
Who is the richest singer in the world?
Who is the richest singer in the world? Richest Singers of All Time Jon Bon Jovi. Victoria Beckham. Net worth: $450 million. Gloria Estefan (Tied) Net worth: $500 million. Mick Jagger (Tied) Net worth: $500 million. Dolly Parton (Tied) Net worth: $500 million. Elton John (Tied) Net worth: $500 million. Mariah Carey. Net worth: $535 […]
Why is public transport safer than cars?
Why is public transport safer than cars? Crash Risk Crash risk refers to property damages, injuries and deaths caused by vehicle crashes. Public transit has relative low crash rates per unit of travel, as indicated in Table 3 and Figure 1. Public transit passengers have far lower traffic casualty rates than automobile occupants. Should buses […]
Does the speed at which you move the magnet inside of the coils have any effect on voltage?
How can you tell which star cluster is older?
How can you tell which star cluster is older? By determining the mass of the main-sequence turnoff stars, we get the age of the cluster. The cluster age equals the main-sequence lifetime of the turnoff stars. This is one of the ways we have studied the age of the Universe and the formation history of […]
How did alchemists contribute to science?
How did alchemists contribute to science? Through the span of several millennia, alchemists “were learning fundamental principles of chemistry: breaking down ores, dissolving metals with acids, and precipitating metals out of solution [8].” This laid the foundations of basic scientific experimentation with modern alchemists such as Boyle emphasizing the … What were some contributions of […]
Which fruit is good for metabolism?
Which fruit is good for metabolism? Watermelon, cantaloupe, honeydew—these are naturally good for metabolism. Watermelon may even help with weight loss because it contains the amino acid arginine, which was found in a study of obese mice to reduce body fat gains by 64 percent. How do I know what my metabolism is? A metabolic […]
How does Mildred die?
How does Mildred die? Montag finds Mildred passed out, having overdosed on thirty plus sleeping pills. Her stomach is pumped and her blood re-circulated. The next morning she doesn’t remember any of it. Why can’t Montag run away? Physically, Montag is unable to run as fast as he would like because of his confrontation with […]
How much heat is required to raise the temperature?
How much heat is required to raise the temperature? To calculate the energy required to raise the temperature of any given substance, here’s what you require: The mass of the material, m. The temperature change that occurs, ΔT. The specific heat capacity of the material, c (which you can look up). Here is a source […]