How is the control group and experimental group different

Rainwater was collected in water collectors at thirty different sites near an industrial basin and the amount of acidity (pH level) was measured. The mean and standard deviation of the values are 4.60 and 1.10 respectively.

Which of the following is a property of an acid? Caustic Corrosive Decreases concentration of hydrogen ion Slippery feel

An 85-g arrow is fired from a bow whose string exerts an average force of 105 n on the arrow over a distance of 75 cm. what is the speed of the arrow as it leaves the bow?

If you wanted to describe an increase in volume to your class, which of the following would be the best item to use? A. a wooden box with holes B. a soccer ball and a pump C. ice in a glass and a thermometer D. a rock and a cup of water

The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by the expression v = (-5.15 multiplied by 107) t2 + (2.30 multiplied by 105) t, where v is in meters per second and t is in seconds.

During a free fall Swati was accelerating at - 9.8m/s2. After 120 seconds how far did she travel? Use the formula = 1/2 * t2 to solve your answer. (Do not forget to keep units in your answer.)

How do sinkholes form?

What is the result of wave motion on water particles? A.) Water particles are pushed forward as they move up and down. B.) Water particles barely move forward as they move up and down. C.) Water particles are pushed down as they move side to side. D.

Nitric acid (HNO3) and potassium hydroxide (KOH) combine in a neutralization reaction to form water and a salt. Which of the following correctly identifies the salt that is produced? OHK NOK2 KNO3 HOH

When the speed of something is the same what is that called