The length of the life cycle of a star depends on _. distance from Earth
the nebula’s brightness
mass and the amount of matter
helium and the amount of matter

What is a possible result of higher air temperature caused by global warming

A2k pendulum has a speed of 1 m/s at a height of 1/2 meter

Water flows through a garden hose which is attached to a nozzle. the water flows through hose with a speed of 2.19 m/s and through the nozzle with a speed of 19.8 m/s. calculate the maximum height (in m) to which water could be squirted if it emerges from the nozzle and emerges with the nozzle removed.