Category: Physics

How much force is required to close a door? Interior Doors – 5 pounds of force. Exterior Doors – 15 pounds of force – Massachusetts AAB 521 CMR only – the ADA and A117. 1 do not include a requirement for exterior doors. Sliding or Folding Doors – 5 pounds of force. Which force is […]

Why does the inner core of Earth remain solid even though it is very hot? The inner core is solid because it is made of very dense, or heavy, materials – like iron and nickel. Even though it is very hot, these materials don’t “melt” very easily, so they stay solid. Answer 3: It turns […]

How many joules is lethal? 50 Joules How many joules can a human punch? 400 joules How many joules can break a bone? 375 Joules How many joules does it take to crack a skull? We scanned the models after impact and compared the resulting fractures to the victim’s skull. The energy necessary for the […]

How does input make an output? How does input make an output? The computer sits between the input and output devices. A computer program processes and digitises the input information. The result is then sent to an output device such as a screen. What is an input-output diagram? Input-output diagrams are the first step in […]

Where is an 18 wheeler blind spots? Because of the massive size of 18-wheelers and other big commercial trucks, they have many blind spots. For instance, 18-wheelers have a blind spot at the front-end of the truck, on both sides; just below and behind the driver-side window; and directly behind the truck. What are blind […]

Who is known as the founder of modern political science? Niccolò Machiavelli What is socialism communism and capitalism? The word socialism also began to be used in the 1830s, to describe a system different from capitalism. Socialism held that groups of people should own and regulate the economy for the benefit of all the members, […]

What is the center of a hurricane called? At the centre of the hurricane is an area of sinking air, called the eye of the storm or inner core. Weather in the eye is normally calm and cloud-free. The eye is circular and can range from 2 to 230miles in diameter. What’s the worst part […]

What is your availability start? Applicants are often asked what date they are available to start work if they were to be hired. The most common time frame for starting a new position is two weeks after you have accepted the job offer. Should I put my availability on my resume? 12) Availability Save the […]

Is NBA older than NFL? “NBA at 50” selected the 50 greatest players in NBA history all the way back to the first years of the league. The NBA began as the Basketball Association of America, with its first season being 1946-47. Since the NBA began in 1946, the NFL still edges them out by […]

Which is the thinnest and outermost layer of the atmosphere? The Earth can be divided into four main layers: the solid crust on the outside, the mantle, the outer core and the inner core. Out of them, the crust is the thinnest layer of the Earth, amounting for less than 1% of our planet’s volume. […]