An emission spectrum shows : a. Brightly colored lines

b. A rainbow of colors merging into each other

c. Only red and orange bands

d. Only green and blue bands

A rocket weighs 9800N what is its mass?

Which term refers to a quantity that has both magnitude and direction? A: number B: arrow C: vector D: scalar

Which compound has ionic bonding? A. Cl2 B. HF C. CaO D. NO2

A car with a mass of 1500 kg accelerates when the traffic light turns green. If the net force on the car is 3750 newtons, what is the car's acceleration? * Your answer

Why is UVA light considered a mutagen? It penetrates the skin and can cause mutations. It can be prevented by wearing a protective vest. It produces chemicals that can be inhaled. It is found in synthetic dyes and cosmetics.

Which statement is true about planets with longer orbits in the solar system? A. They have longer periods of revolution. B. They are smaller in size. C. They have less distance to travel for one revolution. D. They have longer seasons

Atmospheric conditions near a mountain range are such that a cloud at an altitude of 2.00 km contains 3.20 ✕ 10^7 kg of water vapor. How long (in years) would it take for a 2.

In addition to the conditions required for any solar eclipse, what must also be true in order for you to observe a total solar eclipse?

Protons and neutrons strongly attract when they

How far is Jupiter from the sun?