Aparticular system in a space vehicle must work properly in order for it to gain reentry into the earth’s atmosphere. one component of the system operates successfully only 85% of the time. to increase the reliability of the system, four of the components are installed in such a way that the system will operate successfully if at least one component is working. what is the probability that the system will fail? assume the components operate independently.

A0.580-kg rock is tied to the end of a string and is swung in a circle with a radius of 0.500 meters. the velocity of the rock is 4.50 m/s. what is the centripetal force acting on the rock? 15.5 n 5.22 n 69.8 n 23.5 n

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !

A( developed during the process of technology design