Guessing you want the average speed. We can multiple each speed by the time we spent going that speed, and them all together and then divide by the total time we spent in traffic to get the average speed. We spent a total of 7.5 minutes in traffic, so average speed = (12*1.5+0*3.5+15*2.5)/7.5 = 7.4 m/s
Answer:
he polarity of the electromagnet is determined by the direction the current. The north pole of the electromagnet is determined by using your right hand. Wrap your fingers around the coil in the same direction as the current is flowing (conventional current flows from + to -).
Explanation:
well they are normally bigger than the inner planets, and they also have a bigger distance to go
The magnitude of the net displacement is 95.3 m
Explanation:
To find the magnitude of the net displacement, we have to resolve each of the two displacements into the horizontal and vertical direction first.
1st displacement is:
at ![16.9^{\circ}](https://tex.z-dn.net/?f=16.9%5E%7B%5Ccirc%7D)
So its components are
![d_{1x}=(79)(cos 16.9^{\circ})=75.6 m\\d_{1y}=(79)(sin 16.9^{\circ})=23.0 m](https://tex.z-dn.net/?f=d_%7B1x%7D%3D%2879%29%28cos%2016.9%5E%7B%5Ccirc%7D%29%3D75.6%20m%5C%5Cd_%7B1y%7D%3D%2879%29%28sin%2016.9%5E%7B%5Ccirc%7D%29%3D23.0%20m)
2nd displacement is:
at ![31.1^{\circ}](https://tex.z-dn.net/?f=31.1%5E%7B%5Ccirc%7D)
So its components are
![d_{2x}=(16.7)(cos 31.1^{\circ})=14.3 m\\d_{2y}=(16.7)(sin 31.1^{\circ})=8.6 m](https://tex.z-dn.net/?f=d_%7B2x%7D%3D%2816.7%29%28cos%2031.1%5E%7B%5Ccirc%7D%29%3D14.3%20m%5C%5Cd_%7B2y%7D%3D%2816.7%29%28sin%2031.1%5E%7B%5Ccirc%7D%29%3D8.6%20m)
Therefore, the x- and y-components of the net displacement are:
![d_x=d_{1x}+d_{2x}=75.6+14.3=89.9 m\\d_y=d_{1y}+d_{2y}=23.0+8.6=31.6 m](https://tex.z-dn.net/?f=d_x%3Dd_%7B1x%7D%2Bd_%7B2x%7D%3D75.6%2B14.3%3D89.9%20m%5C%5Cd_y%3Dd_%7B1y%7D%2Bd_%7B2y%7D%3D23.0%2B8.6%3D31.6%20m)
Therefore, the magnitude of the final displacement is:
![d=\sqrt{d_x^2+d_y^2}=\sqrt{(89.9)^2+(31.6)^2}=95.3 m](https://tex.z-dn.net/?f=d%3D%5Csqrt%7Bd_x%5E2%2Bd_y%5E2%7D%3D%5Csqrt%7B%2889.9%29%5E2%2B%2831.6%29%5E2%7D%3D95.3%20m)
Learn more about displacement:
brainly.com/question/3969582
#LearnwithBrainly