For a fixed voltage, the current in an electrical circuit varies inversely as the resistance in the circuit. If a certain circuit has a current of 2.5 amps when the resistance is 100 ohms find the current in the circuit when the resistance is doubled.

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

Which form of cell division creates the sperm and egg, resulting in half of the chromosomes as the other cells?

You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.