Category: Physics

Who was the fastest pitcher of all time? On September 24, 2010, former Cincinnati Reds pitcher Aroldis Chapman delivered a 105.1-mph fastball in a game against the San Diego Padres, which is recognized as the Guinness World Record for fastest pitch ever. How much does a bullpen catcher make? The average salary for a bullpen […]

What are sound waves created by? Sound is produced when an object vibrates, creating a pressure wave. This pressure wave causes particles in the surrounding medium (air, water, or solid) to have vibrational motion. As the particles vibrate, they move nearby particles, transmitting the sound further through the medium. What happens to sound waves in […]

Is shale cemented? The most common sedimentary rock is shale. It is made of compressed mud–that is, a mixture of clay and silt (fine particles of mineral matter). The sand or gravel particles in sandstone and conglomerate are held together by a mineral cement. How does clay turn into shale? This weathering breaks the rocks […]

What is the mass of one mole of magnesium? The relative masses of each element can be found on the periodic table. For example, one atom of magnesium weighs 24.31 amu (atomic mass units). However, one mole of magnesium weighs 24.31 g. What does atomic number tell? The atomic number or proton number (symbol Z) […]

How do I mail Frozen Food ups? How to Ship Food so It Stays Fresh Wrap Baked Goods to Create an Airtight Seal. Select Appropriate Insulation for Food that Must Remain Cold or Frozen. Package Items That Can Melt, Thaw or Contain Liquid in Watertight Plastic. Choose the Best Refrigerant for Cold or Frozen Items. […]

What is Z in the Rydberg equation? Rydberg formula Z is the atomic number (for hydrogen Z = 1 ), n₁ is the principal quantum number of the initial state (initial energy level), n₂ is the principal quantum number of the final state (final energy level), R is the Rydberg constant for hydrogen R ≈ […]

Is a recorder an open or closed pipe? Flutes and recorders work like this, the “embouchure” or “window” acting as an open end. On the other hand, in a pipe closed at one end, like a pan flute or a stopped organ pipe, there is always an antinode at the open end and a node […]

What is normal accommodation of eye? The young human eye can change focus from distance (infinity) to as near as 6.5 cm from the eye. This dramatic change in focal power of the eye of approximately 15 dioptres (the reciprocal of focal length in metres) occurs as a consequence of a reduction in zonular tension […]

How can I improve my balloon powered car? How to Make a Balloon Car Go Faster Reduce Weight. Examine your car carefully for any opportunity to shed as much weight as possible. Minimize Drag. Drag, or air resistance, is important even at low speeds because the balloon car is so lightweight. Cut the Friction. Improve […]

Do I need to know Physics 1 Physics 2? All you need to know for Physics 1 (newtonian mechanics) is basic derivatives for velocity and acceleration as well as some integrals for force, work and some moment of inertia problems. Physics 2 requires Calc 2 because you need to know different types of integrals such […]