Control and constant variables? Plez answer

Periodic trends vary as we move across the periodic table. In general, as you move across a row in the periodic table A) ionic size increases. B) atomic radius decreases. C) nuclear charge decreases. D) ionization energy decreases.

Why is acceleration independant of mass?

The greater the change in speed, the less the light wave is reflected. True or false? Explain.

What is a wavelength? a. the highest part of the wave b. the distance between two wave troughs c. the speed of energy of the wave d. the lowest part of the wave

54) Although Neptune is the farthest planet from the Sun, it travels in a fixed orbit around the Sun and never changes its path. What is the reason for this? A) The magnetic pull of the Sun holds Neptune in its orbit.

To rid the body of wastes, including excess water and salts" is the purpose of what human body system? A) Digestive B) Excretory C) Skeletal D) Nervous

What's the transmission of heat requiring the movement of a liquid or a gas is?

Wich section of a business plan should come first but be written last?

Lemonade powder is stirred into water until it dissolves. Which are true statements? Check all that apply. A. Lemonade is the solute. B. Water is the solvent. C. Lemonade is the solvent. D. Water is the solute.

Nikolas, the fire extinguisher, and the skateboard have a combined mass of 50 kg. What force would the fire extinguisher have to produce to propel Nikolas if he wanted to accelerate at a rate of 1.