Alfonso ran the 1000-meter race in 2.5 minutes. Alfonso's average speed was

Which was least likely to have been a component of Earth's atmosphere before life began? A-sulfur B-carbon dioxide C-oxygen D-water vapor

Imagine there was no tilt to the Earth's axis and Earth's orbit was circular. What would be true about the length of days and nights on Earth? A) The periods of day and night would be fixed all year, for any location.

A 25.0-gram bullet enters a 2.25-kg watermelon with a speed of 220 m/s and exits the opposite side with a speed of 110 m/s. If the melon was originally at rest, then what speed will it have as the bullet leaves its opposite side?

What is the difference between a wedge and a screw?

The Distance an object moves per unit of time is known as the

What two equations can be used to determine the speed of a wave

Which force has an infinite range and is always attractive?

A ramp with a mechanical advantage of 8 lifts objects to a height of 1.5 meters how long is the ramp

Sodium, atomic number 11, forms an ionic bond with an atom of an unknown element. What is one possible choice for the ther element in the compound?

A ship leaves the island of Guam and sails a distance 255 km at an angle 49.0 o north of west. Part A: In which direction must it now head so that its resultant displacement will be 125 km directly east of Guam?