Category: Physics

What are the technological requirements of additives? Additive manufacturing technologies Direct Metal Laser Sintering (DMLS) Within DMLS, a laser sinters each layer of metal powder so that the metal particles adhere to one another. Direct Metal Laser Melting (DMLM) and Electron Beam Melting (EBM) Stereolithography (SLA) Why is it called additive manufacturing? The term additive […]

How do I restore my balance in life? Calm the chaos: how to restore balance to your life Take a break. You’ll get more accomplished if you give yourself a 10-minute break every few hours at work, so schedule them in and make sure to take them. Prioritize. Turn off your email. Protect your time. […]

How do you calculate the force of a lever? In a class one lever the force of the effort (Fe) multiplied by the distance of the effort from the fulcrum (de) is equal to the force of the resistance (Fr) multiplied by the distance of the resistance from the fulcrum (dr). How does a lever […]

How much does the St Louis Arch sway? The Arch is designed to sway as much as 18 inches, and can withstand an earthquake, however under normal conditions the Arch does not sway. It takes a 50-mile an hour wind to move the top 1 1/2 inches each side of center. Are the St Louis […]

Why can a camel walk easily on sand? Animals like camels walk easily in the desert as broad feet exert greater pressure on the sandy grounds. Hint:Pressure exerted is directly proportional to the applied force and is inversely proportional to the area of contact. This is following Pascal’s Law of pressure. Can camels run in […]

What two factors cause the moon illusion? As usually seen, the sky-dome model “explains” the moon illusion in this manner: The retina receives a certain size stimulus, the same angular size for horizon or overhead moons. The brain has a model of the sky that causes us to judge that the overhead moon is the […]

What note should drums be tuned to? When considering the kit as a whole, the pitches of each drum should compliment one another. You can even consider tuning the kit to a musical scale: Our snare drum tuned to a C (dominant) could be accompanied by a kick tuned to an F (tonic) and toms […]

How tall is the average 2 year old in feet? Preschooler weight and height chart Age Size Boys 2 years Weight 28 lb (12.7 kg) Height 2 ft 11 in (87.7 cm) 2 ½ years Weight 30 pounds (13.6 kg) Height 3 ft (92.1cm) How high should a 2-year-old count? By age 2, a child […]

How can you identify an aggressive driver? Signs of an aggressive driver include the following: Speeding or racing other drivers. Excessive lane changing, swerving in between cars. Blocking other vehicles from changing lanes. Tailgating or riding too close to the car ahead. Yelling obscenities or displaying inappropriate hand gestures. Excessive horn honking. What is it […]

What are the 3 rules for adding forces? FORCES ARE VECTORS. This means they have both SIZE and DIRECTION. When adding forces, we must add them like lines, taking LENGTH and ANGLE into account. Can 3 unequal vectors add to zero? Since a scalene triangle exists, three unequal vectors can add up to zero. The […]