What was the first artificial satellite placed in orbit around the earth? (3 points)

The answer would be Sputnik 1. This was a Russian space probe launched during the Space Race between the Soviet Union and the United States.

did u get the answer? /? ? / me

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.