Do You Know
Questions & Answers on General Knowledge.
What causes a dropped ball to bounce?
When you lift a ball off the floor, you transfer energy to it. This energy is stored in the gravitational force between the ball and the earth and is called gravitational potential energy. When you release the ball, its weight makes it accelerate downward and its gravitational potential energy gradually becomes kinetic energy, the energy of motion. When the ball hits the floor, both the ball's bottom surface and the floor's upper surface begin to distort and the ball's kinetic energy becomes elastic potential energy in these two distorted surfaces. The ball accelerates upward during this process and eventually comes to a complete stop. When it does, most of the energy that was initially gravitational potential energy and later kinetic energy has become elastic potential energy in the surfaces. However, some of the original energy has been converted into thermal energy by internal frictional forces in the ball and floor. The distorted ball and floor then push apart and the ball rebounds into the air. Some or most of the elastic potential energy becomes kinetic energy in the ball, and the rising ball then converts this kinetic energy into gravitational potential energy. But the ball doesn't reach its original height because some of its original gravitational potential energy has been converted into thermal energy during the bounce.
What is the meaning of the word factoid?
What were the major areas of manufacturing that changed?
Why is do we say someone who is successful is “bringing home the bacon”?
What is the Morse code?
Why is it considered bad luck to walk under a ladder?
How did Britain govern such a large territory around the world?
What is special about the claws of a big cat?
Why do we say “Goodnight, sleep tight”?
How do boats float?
Could you give me the formula for figuring the wavelength of an ultrasound wave?
What are caves?
is a photon a specific unit of measurement of light? Has it been decided if light is a particle or a wave? Why?
What colour is the sky above Mercury?
How do sloth bears eat?
Is it possible for a skydiver who jumps second from a plane to put himself in an aerodynamic position and overtake a person who jumped first?
Are there any other dwarf planets?
Do these homes have fireplaces, stoves, running water, and electricity?
What do we mean when we say someone’s from the “wrong side of the tracks”?
Can a pet help me when I am having a bad day?
How do robots like ASIMO and Mahru work?
What is special about Australian sheep?
How do submarines sink if they have air inside?
How do you push a shopping cart and have the cart exert the same force on you, if you are still traveling forward? Friction? Air Resistance?
Why do cows stand around in fields eating all day?
Why is the word late used to describe the recently deceased?
Myth about AIDS
Foods That Are So Much Better Fried
Things That Men Think Women Can Never Learn
Countries that didnt Exist 25 years Ago
Top Sports Rivalries of All Time
The Highest Speed Cars in the world
Vector Avtech WX8 Hypercar
TheVector WX8is a sports car prototype released under development atVector Motors. It was first shown officially to the public in 2007 revealing the development and the companys ambitious intentions of creating a next generation sportscar successor to their previous models. Vector claims the WX8 may achieve a top speed of 270mph (430km/h) and a zeroto60mph time as low as 2.3 seconds for the version of the car equipped with a 10litreturbochargedengine. This engine is described variously on the companys website as being capable of 1800+ HP, 1850+ HP, and over 1250 horsepower.
As of early 2014 Vector has reported little activity in regards to the WX8 project, although they have made no indications as to the WX8 being scrapped or shelved.