Which one of the following substances is a liquid fuel used in rocket engines?

What is the average velocity of a car that travels 30 kilometers due wet in 0.50 hour? 0 60 km/hr west O 15 km/hr O 60 km/hr O 15 km/hr west

What is an output force? 1. The applied force on a system 2. The force a simple machine applies to an object 3. The net force on a system 4. The force a person applies to a simple machine

A small 175-g ball on the end of a light string is revolving uniformly on a frictionless surface in a horizontal circle of diameter 1.0 m. The ball makes 2.0 revolutions every 1.0 s.

If there were no action-reactionforces in effect, describe what would happen as you walk down a sidewalk?

A slow jogger runs a mile in 16 minutes. Calculate the speed in

A cartoon plane with four engines can accelerate at 8.9 meters per second squared

Convert 1087 ft/s to mi/hr

Using the atomic symbol above report how many protons, neutron, and electrons an atom of neon contains.

Which of the following is not shorthand to describe one of the three types of ecological relationships? +/+ -/+ +/0 -/0

Which is a characteristic of an electromagnetic wave?