One grocery clerk can stock a shelf in 45 minutes. a second clerk requires 20 minutes to stock the same shelf. How long would it take to stock the shelf if the two clerks worked together?

Is it possible to be moving but not be in motion?

We drive a distance of 1 kilometer at 18 km/h. then we drive an additional distance of 1 kilometer at 40 km/h. what is our average speed?

Why does gravitational redshift occur?

How do you find momentum

What causes the mechanical advantage of the inclined plane to be less than that of the liver

The amount of gravity between 1kg of lead and Earth is ___ the amount of gravity between 1kg of marshmallows and Earth. a. greater than b. less than c. the same as d. none of the above

What is the best way to dry a thermometer servsafe?

What is a sphygmomanometer?

What part of a circuit has the main job of conducting the electricity?

One-half kg of Refrigerant 134a is contained in a piston-cylinder assembly, initially a saturated vapor at 200 kPa. The refrigerant undergoes a process for which the pressure-specific volume relation is p v^1.