Which is a tool used by scientists to determine the composition of objects?

a hologram

a spectrometer

a wave front

a prism

If it's 58F outside, what is the temperature in degrees Celsius?

How must a projectile be launched in order to maximize its range?

What is the "plate boundry type" of north american plate and the pacific plate near california

Tidal-power-generating facilities are common worldwide. True False

The Roky mountain system is stretching from Canada to Mexico is a string of mountains running along the western United States. Wha factor would most likely cause the arrangement of mountains

A stationary object has no forces acting on it. True False

April swims 50 m north and then turns and swims 20 m back to the south. What is her velocity if it takes her 60 seconds?

What happens to the mass of an object when it is cooled?

An electric vehicle starts from rest and accelerates at a rate of 2.1 m/s2 in a straight line until it reaches a speed of 25 m/s. The vehicle then slows at a constant rate of 1.2 m/s2 until it stops. (a) How much time elapses from start to stop

We traveled all the way across the U. S. In some states, it rained; in others, it was hot and dry. But, the West Coast beaches were the best! What climate zone is being described? tropical temperate polar subtropical