0
Add your answer:
Earn +20 pts
How do you convert 0.720 km into m?
To convert 0.720 km to meters, you simply multiply the value by 1000 because 1 kilometer is equal to 1000 meters. Therefore, 0.720 km is equal to 720 meters.
Use the fact that the speed of light in a vacuum is about 3.00 103 meters per second to determine how many kilometers a pulse from a laser beam travels in exactly 8 hours?
The speed of light in a vacuum is 3.00 x 10^8 m/s. To convert this to kilometers per second, divide by 1000 to get 3.00 x 10^5 km/s. In 8 hours, there are 8 x 3600 = 28800 seconds. The distance the pulse travels is speed x time, so it would be 3.00 x 10^5 km/s x 28800 s = 8.64 x 10^9 km.
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 fast does a spot of laser sweep across clouds of a turntable at the top of a mountain and turns 10 revolutions per second if it reaches clouds 10km away?
In km/ seconds: 10km=r= radius Circumference = 2(Pi)(r) = 20km(Pi) = 62.83185307 The laser is making 10 sweeps/ second so times the answer by ten. 200(Pi) km/sec or 628.3185307 km/sec *If you have to go by sig. figs. 600 km/sec. If you don;t know what sig. figs. are ignore this.
What is the wavelength of an electromagnetic wave that has a frequency of 3 kHz a less than 1 km b 1 km c more than 1 km?
a) For a frequency of 3 kHz, the wavelength is less than 1 km, approximately 100 km. b) For a frequency of 3 kHz, the wavelength is 100 km. c) For a frequency of 3 kHz, the wavelength is more than 1 km, approximately 300 km.
How do you convert 20m sec into km hr?
There are 1000 meters in a kilometer(1000 m) / (1 km). There are 3600 seconds in an hour, so (1 hr) / (3600 s). you can just multiply (1 km / hr)*[(1000 m) / (1 km)]*[(1 hr) / (3600 s)] to get 0.28 m/s.
How do you convert a speed of 73.5 km hr to m sec?
73.5 km/hour = 73500 meters/hour = 73500/3600 meters/sec = 20.4166 meters/sec
Convert 66 kilometers per second to kilometers per hour?
(66 km/sec) x (3,600 sec/hr) = 237,600 km/hr
How do you convert kilometer per hour to miles per second?
(1 km/hr) / [ (1.609344 km/mi) x (3,600 sec/hr) ] = 0.0001726 mi/sec (rounded)Multiply [Km/hr] by 0.0001726 to get [mi/sec] .Or divide it by 5,793.6 .
Convert km per hr to meters per sec?
Divided speed by 4, then add 2I.E 40km is 12m a sec
How do you convert kilo joules in to km per sec?
You cannot, the units are incompatible. However a force of x kilojoules of energy will impart an acceleration on a mass of x km per sec.
How do you convert 12.7km h into ms?
To convert 12.7 km/h to m/s, you can use the conversion factor 1 km/h = 0.27778 m/s. Therefore, 12.7 km/h is equal to 12.7 * 0.27778 m/s, which equals 3.53 m/s.
How do you convert km per hour to m per second?
( 1 km/hr ) x (1,000 m/km) x (1/3600 hr/sec) = 5/18 meter/second = 0.2778 meter/second1 meter/sec = 3.6 km/hr
How can you convert the speed of light in km per second by dimensional analysis?
What do you want to convert it to ??Example: Convert [ 'Q' km per second ] to [ miles per minute ].Use:(60 sec/min) = 1(1 mile/ 1.609344 km) = 1(Q km/sec) x (60 sec/min) x (mile/1.609344 km) = (Q x 60/1.609344) x (km-sec-mile/sec-min-km)= 37.2823 Q mile/min
How do you convert 85 miles per hour to kilimeters per second?
85 mi/h x 1 km/.621 mi x 60 min/1 h x 60 sec/1 min = 492,753 km/sec (490,000 km/sec if you address the concern of significant figures)
What is the formula to convert kilometers per second to miles per hour?
km/sec x 2,236.94 = mph
How do you convert 600 kilometers per second to miles per hour?
(600 km/sec) x (1 mile/1.609344 km) x (3,600 sec/hr) = 600 x 3,600/1.609344 = 1,342,161.8 mph
