What is the standard unit that astronomers use to measure the size of a star

A box has two forces acting on it One force, is 100 Nupward. Another force is 50N downward. What is the net force on the bar 100Nupward 50 Nupward 50 N douaward 100 N downward

A small 19 kilogram canoe is floating downriver at a speed of 5 m/s. What is the canoe's kinetic energy?

What indicates that a chemical change has occurred?

The atomic masses of two isotopes of silver are 105 and 111. The chemical symbol for silver is Ag. (a) What are the number of protons and neutrons in each of the two isotopes?

N2 (g) + 3H2 (g) + 2NH3 (9) What will happen if pressure is increased?

When the equation Fe+S - -> Fe2S3 is balanced, what is the coefficient for sulfur?

Where is the energy in a glucose molecule stored

In this reaction: Mg (s) + I₂ (s) → MgI₂ (s) If 2.34 moles of Mg react with 3.56 moles of I₂, and 1.76 moles of MgI₂ form, what is the percent yield?

Using the Acceleration Equation Try it A cyclist going downhill is accelerating at 1.2 m/s2. If the final velocity of the cyclist is 16 m/s is the cyclist's initial velocity? o oo 0 4 m/s O 12 m/s O 18 m/s O 20 m/s

Why is fusion not used to generate electrical power?