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Does a sound wave need a medium?
Yes. The speed of sound in a medium depend on the (sq root of the elastic modulus/ the density).The speed of sound in a few metals are :-Beryllium with a speed of about 13 km/sec. (the highest)Potassium has a velocity of sound of about 2km/sec. - (soft metal)Lithium, has a sound velocity of about 6 km/sec.( the lightest metal)Copper a fairly dense but soft metal has a sound velocity of about 3.8km/sec.Osmium about 4.9 km/sec. (The densest metal)Magnesium about 4.9 km/sec. a light metal, but stiff.
How many nanoseconds does it take light to travel 2.00 km in vacuum?
One 'rule of thumb' that many of us oldtime engineers carry in our decomposing mental toolboxes is: 1 foot = 1 nanosecond. Since you asked, I'll calculate it now, and see how close it is: Speed of light in vacuum = 299,792,458 meters per second. Use 1 meter = 3.28084 feet Speed of light = 983571000 feet per second. Speed of light = 0.98357+ foot per nanosecond "1 foot = 1 nanosecond" is within 1.65 percent of being accurate. 2.5 feet (in vacuum) takes 2.5418 nanoseconds (rounded)
What happens to velocity if you double kinetic energy?
The square of 2 is 4. So, if the velocity doubles, the energy increases by a factor of 4.The square of 2 is 4. So, if the velocity doubles, the energy increases by a factor of 4.The square of 2 is 4. So, if the velocity doubles, the energy increases by a factor of 4.The square of 2 is 4. So, if the velocity doubles, the energy increases by a factor of 4.
How far will a .243 caliber rifle bullet travel?
The velocity of a bullet is dependent on many factors. The amount and type of propellant affect velocity, as does the barrel length. The Springfield 30-06 with a 180 grain bullet can have a velocity of 820 meters per second based on a 60 centimeter barrel - again dependent on powder charge and type.
What is the mass of earth in grams?
Mass is an intrinsic property of matter, but weight is mass times the acceleration of gravity. So, mass does not change; you have the same mass on the moon as you have on earth, but gravitational pull is much stronger on earth than the moon, so you weigh more on earth.
How can a bike travel 6 kilometers in 3 hours what is the average speed?
Average speed is 6km/3hr = 2km/hr = 2KPH.
What is your average speed if you can travel 2 kilometers from to your house to school and takes only half of an hour?
Speed = Distance/Time Therefore, 2km/1h = 2km/h Alternatively, 2000m/60minutes = 33.33m/s
I walked a distance of 2km in 10 min what is my average speed in km min?
When you walk a distance of 2 km in 10 minutes your average speed is 0.2 km per minute.
What is the speed of hades comet?
2km/h
What is the average speed if someone walks 2km in 30 minutes?
The average speed is exactly 2 km per 30 minutes. In more popular units, it's 4 km per hour.
What is the area of the square that is 2km 2km?
2km x 2km = 4 square kilometers (or 4km2)
How many m are there in 2km?
there are 2k in 2km
What is 2km-345m?
2km-345m = -343
How do you solve 2km 303m -556m?
2km 303 m -556
By how much does the speed of a vehicle moving in a straight line change each second when it is accelerating at 2kmhs?
2km/h
Which is longer 1500m or 2km?
2km
How many m is 2km?
2km = 2000 meters.
