several lemons are placed on a spring scale at a grocery store. If the the lemons have a combined mass of 1.01kg, what is the spring force in the spring while the objects are being weighed?

Afigure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 20.9 12000 200 3.33

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?

The unit of resistivity is the: ohm ohm-cm volt coulomb