What is the equation for weight

Two carts with masses of 17.5 kg and 1.5 kg, respectively, move in opposite directions on a frictionless horizontal track with speeds of 8.0 m/s and 4.0 m/s, respectively. The carts stick together after colliding head-on.

The first law of motion applies to what?

A person covers a distance of 320 miles in a travel time of 8 hours. What is the speed for this trip? A. 40 mi/hr B. 20 mi/hr C. 35 mi/hr D. 15 mi/hr

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 40,500 mg. Calculate the density of mercury.

Fresh water flows through a horizontal tapered pipe. At the wide end its speed is 8 m/s. The difference in pressure between the two ends is 5338 Pa. What is the speed (in m/s) of the water at the narrow end? Round your answer to the nearest tenth.

List some limiting factors that might limit the size of a population within its environment

What do you think is the difference between being imaginative in doing science and Doing pseudoscience?

How are energy and temperature related?

Explain why action-reaction forces do not cancel each other out, resulting in zero net force

Which is a correct name for the compound Cuci?