Ameter stick is balanced at the 50 cm mark. you tie 70 n weight at the 30 cm mark. what weight at the 90 cm mark would create a rotational equilibrium?

Infrared rays have a shorter wavelength than question 11 options: x-rays. ultraviolet rays. radio waves. gamma rays.

According to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does maria's voyage take according to samir?

Match each type of lever with the correct diagram. 1. first-class 2. third-class 3. second-class