What instrument did navigators use to calculate the positions of the sun and the stars?

a caravel

a carrack

an astrolabe

a compass

Which of the answer choices best defines mixture? combination of two or more substances that can be separated using only chemical means combination of two or more substances that can be separated using physical means combination of two or more

A manufacturer claims its cleanser works twice as fast as any other. Could test be performed to support the claim? Explain

The accompanying drawing represents a mixture of three different gases. (a) rank the three components in order of increasing partial pressure. (b) if the total pressure of the mixture is 1.40 atm, calculate the partial pressure of each gas.

Warm-water hydrothermal vents form: a. turbidity currents. b. cold seeps. c. white smokers. d. black smokers. e. abyssal hills.

The first division of political parties came about because of what issue

An arrow is shot upward on mars from ground level with a velocity of 60 meters per second. Its height (in meters) after t seconds is given by 2 s (t) = 60t - 1.9t^2.

Energy transformations in a bouncy house

Suppose gene A on the left chromosome is damaged and no longer functions. what form of the trait would show? Why?

What is the use of scientific knowledge and research for an action

How do evaporation and condensation relate to heat