Why are most large astromical telescopes reflecting telescopes rather than refracting telescopes?

If a man has a mass of 74 kilograms runs 800 meters in 150 seconds, what is his average momentum?

An engine has excessive valve guide wear. Technician A says to ream the guide and install a new valve with an oversized stem. Technician B says to knurl the valve stem and reinstall it in the guide. Who is right? 1. Technician A only. 2.

Which magnet will produce the strongest force of attraction when placed beneath this magnet?

The ability of a material to flow is called conductivity. malleability. density. viscosity.

What are the particles on the outer shell of an atom called? Valence electrons Orbiting Protons Neutrons Nuclei

Explain with the stars look like to Jane. Explain what the stars look like to John. Explain why the stars look different between Jean and John.

Why is the statement "we evoleved from monkeys" false?

A group of lions is chasing a zebra. The lions are most likely responding to which kind of stimulus

A ray diagram is shown What does e, represent? index of refraction index of reflection angle of incidence angle of refraction Mark this and retum Submit Save and Exit

Which renewable resource could become a nonrenewable resource if used faster than Earth's ability to replenish its supply? A. water B. manganese C. sunlight D. wind