A parachute is like a little nylon machine with all of the parts designed for light weight, durability and as few problems as possible during deployment. Considering the speed at which a skydiver is typically free falling -- about 120 mph (193 kph) -- and the lack of options if something...
durability and as few problems as possible during deployment. Considering the speed at which a skydiver is typically free falling -- about 120 mph (193 kph) -- and the lack of options if something goes wrong, a parachute rig needs to be incredibly reliable. ...
Like many other states, Texas is raising the speed limit on its freeways and interstates to 113 kph (70 mph) following the federal government's repeal of the 88 kph (55 mph) national maximum speed limit. Texas' new speed limit is based on the 85th percentile speed rule, which means th...
and this drogue is out during the entire free fall. Without this drogue, the combined weight of the instructor and student would cause the pair to fall at 180 to 200 mph (290 to 320 kph) -- much faster than the normal 120 mph. The drogue slows the pair down to...
The fuel load is 800 to 1,000 pounds (about 450 kg) of fuel at launch, or approximately 150 gallons (600 liters). The missile has a cruising speed of 550 mph (880 kph). Guidance Tomahawk cruise missile escorted by F-14 Photo courtesy U.S. Navy The hallmark of a cruise missile...
These plunges see the hurtling bodies reaching speeds of 45 mph (72 kph) or more. And the most successful dives are the ones where the men can tuck their heads at the last moment and lightly brush their shoulders against the ground, stopping just short of certain death. Good dives – os...
What is the travel time for a scraper moving at 18 mph over a distance of 2,300 ft? Ann walked 1.5 miles south to her house in 0.5 hours. What is Ann's speed and velocity? What are the SI units of kinematic viscosity? A person walks about 106 cm per day. How many picometers do...
How many hours traveled at 65 miles per hour to cover 125 miles? What speed would you have to go to go 120 miles in 12 minutes? A car can accelerate from 0 mph to 60 mph in 2 seconds. What is its acceleration in miles per hour per hour? Convert your answer to meters per seco...
A typical Perseid meteoroid (which is what they're called while in space) moves at 133,200 mph (214,365 kph) when it hitsEarth's atmosphere(and then it is called a meteor). Most of the Perseids are tiny, about the size of a sand grain. Almost none of the fragments hit the ground...
It’s possible to play with a damper’s firmness on the fly without fancy magnetic fluid, however. Many systems use a valve to control the rate of flow through the fluid through the piston, rather than alter the properties of the liquid itself. The more restricted the flow, the firmer th...