Randomization in an experiment means that the experimental units or subjects are selected as a simple random sample from the whole population under study.

A. True

B. False

What component of a longitudinal sound wave is analogous to a trough of a transverse wave?

Explain how electrons make up a large amount of an atoms volume, but not its mass

A boat sailed for 7 hours at the speed of 80 km/h. It changed its speed to 95 km/h for the next 6 hours. How far had boat sailed in km.

Which of these circuit schematics has an ammeter?

This is a bond in which a single pair of electrons is shared between a pair of atoms

Which best distinguishes between the inner and outer planets? An asteroid belt is the dividing line between the inner and outer planets. The increase in the number of moons divides the inner and outer planets.

A package is pushed across the floor a distance of 90 feet by exerting a force of 32 lbs downward at an angle of 24 ∘ with the horizontal. How much work is done? Round to the nearest foot pound.

Which of the following is an example of a gas liquid mixture? a. air we breath b. helium balloon c. ice cube d. Carbonated drink

A car starts from rest and accelerates at 2.0 m/s2 for 10 seconds. What is the car's displacement at the end of 10 seconds?

A cycle in which a person loses weight gains it back and lose it again is known asa. yo-yo dieting b. anorexia c. calorie restrictiond. bulimia