Calculate the centripetal for the motion of the car traveling with a speed of 15.0 m/s, making a turn where the radius is 25.0 m

The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

Amichelson interferometer operating at a 600 nm wavelength has a 3.02-cm-long glass cell in one arm. to begin, the air is pumped out of the cell and mirror m2 is adjusted to produce a bright spot at the center of the interference pattern. then a valve is opened and air is slowly admitted into the cell. the index of refraction of air at 1.00 atm pressure is 1.00028.how many bright-dark-bright fringe shifts are observed as the cell fills with air?