Category: Physics

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? Yes, the speed at which you rub the magnet has an effect on voltage. When you rub it faster the light and the volts increase. How do you calculate induced current in a coil? The magnitude of […]

Is entropy the same as chaos? Entropy is the measure of disorder in a system. Chaos is another word for disorder. Entropy is a measure of how likely the system will be in a certain macrostate, because of how many microstates correspond to it. It is also a measure of how much the energy is […]

Is black body always black? No radiation passes through it and none is reflected, yet in classical physics, it can theoretically radiate any possible wavelength of energy. Despite the name, black bodies are not actually black as they radiate energy as well. What is a black body Class 11? A black body is an idealization […]

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 […]

Who did John Smith marry? Captain John Smith described Pocahontas as being 11 years old when she saved him. He was hurt in an accident 1 and 1/2 years later and had to leave to go home. Captain John Smith never married Pocahontas. Pocahontas married Master John Rolfe in 1614.. What did the real John […]

What is the difference between closed head injury and concussion? A concussion is a type of closed head injury, which is often referred to as a traumatic brain injury or TBI. The symptoms of concussion include headache, dizziness, sleep disturbances, visual changes, difficulty with balance, fatigue and memory problems. TBI encompasses many more brain injuries […]

How do I calculate time duration in Excel? Another simple technique to calculate the duration between two times in Excel is using the TEXT function: Calculate hours between two times: =TEXT(B2-A2, “h”) Return hours and minutes between 2 times: =TEXT(B2-A2, “h:mm”) Return hours, minutes and seconds between 2 times: =TEXT(B2-A2, “h:mm:ss”) How do I calculate […]

What is able to melt the snow? Paraffin wax can help the roads melt snow on their own because of its nature. Made up of paraffin oil, it’s a phase change material, meaning as it moves from an liquid to a solid (as it cools down) it releases a thermal heat. Does rain melt lake […]

How do you know if a dryer heating element is bad? If your dryer takes longer than usual to dry your clothes, or the air in the dryer never heats, your heating element might be bad. What causes a dryer element to burn out? A dryer’s heating element operates on the same principle as the […]