Who had a idea to study humans as groups rather then as individuals?

Is your textbook the kind of idealized object (described in section on radiation laws) that absorbs all the radiation falling on it? explain. how about the black sweater worn by one of your classmates?

In which situation is the acceleration of the car negative? A) The velocity of a car was 75 km/h over 4 hours. B) The velocity of a car reduced from 50 km/h to 35 km/h over one minute.

How does an insulator stop the flow of an electric current? A. Insulators have too many electrons. B. Insulators have a positive charge so they absorb electrons. C. Electrons in an insulator do not move readily. D.

Which of the following statements are true? a. Positively charged objects attract other positively charged objects. b. Negatively charged objects attract other negatively charged objects. c.

Which factors affect the gravitational force between objects? Check all that apply. difference in speed of objects direction of movement of objects distance between objects masses of the objects volumes of the objects

What would result from under-coverage? A. a lack of accurate result B. an incorrect independent variable C. an experiment D. accurate result

What can be said about the force of gravity acting on an object that is floating stationary underwater and not moving up or down? A. The buoyant force equals the force of gravity, so there is no net force. B.

A frog in a hemispherical pod finds that he just floatswithout sinking in a fluid of density 1.25 g/cm3. If the pod has a radius of3.00 cm and negligible mass, what isthe mass of the frog?

What is the reasonable estimate for Lim g (x)

Do tides depend more on the strength of gravitational pull or on the difference in strengths? explain.