If the man on the left pulls on the object with a force of 500 n and the man on the right pulls on the object with a force of 750 n, what is the net force exerted on the object? a. 1250 n to the right b. 1250 n to the left c. 250 n to the right d. 250 n to the left

Aplane travels 1000 miles in 5 hours .what is the planes average speed?

What are the three ways that an object can accelerate

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?