10. This mass is almost equal to that of a proto Exercise 1.3
wch experimental evidence Indicates that
a electrons are negatively charged particles
1) electrons are the consent of all atos?
la Rutherford's experiment, most of the alpha particles passed through

gold fod underted. What does this indicate
In Rutherford's experiment, some of the a particles were deflected by s
angles. What does this indicate?
What was determined from Man's oil drop experiment?
Three particles are fired into a box that is positively changed on one side
negatively charged on the other side. The result is shown in Figure 1.5.​

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a researcher conducts a comparison of the comments made in a publicly available blog and the blogger's comments on a similar topic in a weekly magazine. undergraduate students in a field methods class are assigned a research question and asked to interview another classmate, to be followed by a class discussion on interview techniques. a cognitive psychologist enrolls undergraduate students for a computer-based study about the effect of mood on problem-solving behaviors. a researcher sets up a meeting with the superintendent of a large and diverse public school system to get data about the ethnic composition of the school system and the number of students receiving free lunches.