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bagirrra123 [75]
3 years ago
14

lightning and thunder both occur at the same time why do you see the Lightning before you hear the thunder

Physics
2 answers:
taurus [48]3 years ago
8 0

Great question!

Thunder and lightning happen at the same time, but because light travels faster than sound, we see lightning before we hear thunder.

denis23 [38]3 years ago
5 0

Because the light from it travels to you about 874 thousand times
as fast as the sound does, so the hearing part falls behind the seeing
part.
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1 A football player runs directly down the field for 35 m before turning to the right at
ehidna [41]

Answer:

The magnitude of displacement is 56.54 m

The direction of the displacement is along the line joining the two vectors.

Explanation:

The resultant displacement is always the line joining the initial and final position of the vectors.

As in figure,

              the vector AB = 35 m

              the vector BC =  15 m

              the angle between AB and AC = 25'  (minutes)

              the resultant vector AC = ?

The resultant vector is given by the formula

             AC² = AB² + BC² + 2 AB BC Cos θ

Substituting the values in the equations,

             AC²  = 35² + 15² + 2 x 35 x 15 x Cos 25'

                      = 56.54

Therefore, the magnitude of displacement is 56.54 m

The direction of the displacement is along the line joining the two vectors.

7 0
3 years ago
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Calculate the average speed in metres per second from Glasgow to Ediburgh ( The table )
Angelina_Jolie [31]
Total distance is 28+12+34=74km=74000m.
Total time is 20+8+25 minutes=53 minutes=53×60=3180 secs.
Average speed is 74000/3180=23.27 m/s.
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3 years ago
Quien conoce a José vcoronada les dió puntos 30 puntos​
gogolik [260]

Answer:

no, yo no lo conosco...porque preguntas?

Explanation:

8 0
3 years ago
A moving walkway has a speed of 0.9 m/s to the east. A stationary observer sees a man walking on the walkway with a velocity of
Leona [35]
B or .2 East is the correct answer
3 0
3 years ago
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Ross and Chandler are carrying a 150 kg crate up a flight of stairs. The crate is 2.0 m long and 1.5 m high, and its center of g
Darya [45]

Answer:

The magnitude of each force is 1309 N and 105 N

Explanation:

The reaction at each lifter due weight and overturning effect (R₁, R₂) is given as:

R_1=\frac{150}{2} cos(45^0) +\frac{1.5}{2+1.5} *150sin(45^0)=53.03 +45.46=98.49kg\\R_2=\frac{150}{2} cos(45^0) -\frac{1.5}{2+1.5} *150sin(45^0)=53.03-45.46=7.57kg

g = 9.8 m/s²

R_1=98.49*g=98.49*9.8=925.904N\\R_2=7.57*g=7.57*9.8=74.186N

Resolving the reactions to the vertical direction, we get:

R_{1v}=\frac{R_1}{cos(45^0)} =\frac{925.904}{cos(45^0)}=1309N\\ R_{2v}=\frac{R_2}{cos(45^0)} =\frac{74.186}{cos(45^0)}=105N\\

The magnitude of each force is 1309 N and 105 N

5 0
3 years ago
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