Why does a star such as Betelgeuse which is located far from the Earth have a much greater absolute magnitude than apparent magnitude?

Whats the difference between ionization energy and excitation energy?

A wave has a wavelength of 12 mm and a frequency of 7 hertz. What is its speed?

Saturn has an orbital period of 29.46 years and it's average distance to the sun is 9.54 AU if Venus has an orbital period of 0.62 years what is its average distance to the sun in AU

Which will be attracted to (or repelled by) a magnet? A. copper wire not carrying any current B. An aluminum wire carrying current C. A positively charged glass rod D. An iron horseshoe E. An electromagnet

Omar is attempting to jump across a mud puddle. If he jumps with a velocity of two m/s eastward across the puddle and lands 1.7 seconds later on the other side of the puddle, what is the maximum width the puddle can be so that he crosses safely? A.

Find the unbalanced force required to accelerate a 6kg mass at 3ms

A bus travels 300 km south along a straight path with an average velocity of 85 km/h to the south. The bus stops for 22 minutes. Then it travels 220 km south with an average velocity of 78 km/h to the south.

In what way does varying the length of the string change the vibration

A 1200 kg car moving at 7.8 m/s collides with a stationary car of mass 1500 kg. if the two vehicles lock together, what is their combined velocity immediately after the collision?

Which have more kinetic energy a 100g ball, a 200g ball, or a 500g ball explain