A star's parallax angle is 1.0. How far away is the star in light years?

8. Find the momentum of a photon in eV/c and in Kg. m/s if the wavelength is (a) 400nm; (b) 1 Å = 0.1 nm, (c) 3 cm; and (d) 2 nm.

Where is the energy in the products of photosynthesis

A paperboy rode his bike at 3 m/s. After being chased by a dog for 8 seconds, he was traveling 6m/s. What is his acceleration? Your answer

What is resistance? Difference between resistance and resistivity.

A plane cruising at 261 m/s accelerates at 19 m/s 2 for 9.4 s. What is its final velocity? Answer in units of m/s. How far will it have traveled in that time? Answer in units of m

What is the tense In sailed

Acceleration is a vector quantity. O O A. True B. False

What will happen to the brightness of a string of bulbs hooked up in series when you increase the number of bulbs in the string? A. Each light in the string will get brighter. B. Each light in the string will get dimmer. C.

What are the two factors that influence the composition of beach material

Which of the following indicates that a ChemicL change has taken place? (A) a change from liquid to a gas (B) an increase in the volume of a substance (C) a change in the color of a substance (D) a change from a solid to a liquid A precipitate is a