Why do you suppose the modern horse has a longer foot than its ancestors?

A) allowed it to swim faster

B) allowed it to reach higher trees

C) allowed for greater chance of mating

D) allowed greater speed to outrun predators

The condenser a. Is a heat exchanger b. Is a device where air passing over it cools the refriger - ant and causes it to change into a high-temperature liquid c. Transfers heat from the refrigerant to the air flowing d. All of the above

Multiple lunar eclipses occur each year. How is it possible that each one can look different than the others? Explain.

How do you know when water is boiling?

A force of 6.0 newtons changes the momentum of a moving object by 3.0 kilogram•meters per second. how long did the force act on the mass

A sound signal traveling underwater has a frequency of 230 hertz. The speed of sound under water is 1.45 * 103 meters/second. What is the wavelength of the sound signal?

Teens realize that things may be "shades of gray" after they enter Piaget's social stage. identity crisis stage. menarche stage. formal operational stage.

Technician A says that fractured rods have a unique mating surface and that only the cap that was fractured is the one that will fit that rod. Technician B says that a powdered metal rod is less expensive, lighter, and as strong as a forged rod.

What is the expected wavelength (in cm) of 10.5 ghz microwaves in free space?

There are 5,280 feet in 1 mile and 12 inches in one foot. How many inches are in a mile?

An anion is an atom that has lost electrons. True or False?