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Andru [333]
2 years ago
6

In order to find the resultant of two vectors we must use the pythagoran therom, a +b2-2. Where the crepresents the resultant ve

ctor
Physics
1 answer:
nadezda [96]2 years ago
8 0

Answer:

Furthermore, the Pythagorean theorem works when the two added vectors are at right angles to one another - such as for adding a north vector and an east vector.

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On February 15, 2013, a superbolide meteor (brighter than the Sun) entered Earth's atmosphere over Chelyabinsk, Russia, and expl
fredd [130]

Answer:

156.67 m/s

0.45676 times the speed of sound

Explanation:

Distance from the ground = 23.5 km = 23500 m

Time taken by the blast waves to reach the ground = 2\ minutes\ 30\ seconds=2\times 60+30=150\ s

Spedd of the wave would be

Speed=\dfrac{Distance}{Time}\\\Rightarrow v_b=\dfrac{23500}{150}\\\Rightarrow v-b=156.67\ m/s

The velocity of the blast wave is 156.67 m/s

v = Velocity of sound = 343 m/s

\dfrac{v_b}{v}=\dfrac{156.67}{343}\\\Rightarrow v_b=v\dfrac{156.67}{343}\\\Rightarrow v_b=0.45676v

The blast wave is 0.45676 times the speed of sound

7 0
3 years ago
List the rock layers from oldest to youngest
MakcuM [25]

Answer:

I,J,h,g,f,e,d,c,b,a

Explanation:

8 0
2 years ago
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Two very small charged particles exert an electrostatic force F on each other. If the distance between them is doubled, the forc
Solnce55 [7]

Answer:

The answer is D

Explanation:

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4 0
3 years ago
A car accelerates from 4 meters/second to 16 meters/second in 4 seconds. The car’s acceleration is __meters/second2.
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3 meters/second2
a=v-u/t
3 0
3 years ago
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2. If the efficiency of a device is 64 %, what is the amount of Energy lost/ wasted by this device?
Inessa05 [86]
It would be 78 becuase the 2 percent of 64 is many of energy lost
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3 years ago
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