Plzzz help I need it know When Kennedy took office, he was handed the task of leading a country through the Cold War. In doing so, Kennedy took a hard line on many issues, responding directly to Soviet aggression in Cuba and Berlin. Luckily, in both instances, the Soviet Union backed off, but the American people remained worried about the outbreak of nuclear war.

As both superpowers raced to send larger satellites farther into space, the United States under President Kennedy's leadership set up the National Aeronautics and Space Administration (NASA). Its mission was to direct an American space program to compete with that of the Soviets.

Use the passage to answer the question.
In the text, you read this about the Cold War during John F. Kennedy’s presidency.

Based on the text, which of the following was a positive outcome of the Cold War during Kennedy’s presidency?
A. It encouraged scientific exploration of space.
B. It broke down the Berlin Wall.
C. It reduced the risk of nuclear war.
D. It led to international cooperation in space exploration.

Running and sleep. sufficient sleep is important for adolescents for both their neural and psychological development. despite this, daytıme sleepiness and poor physical and psychological functioning related to chronic sleep disturbances are common. there is a growing body of evidence that exercise is associated with both better sleep and improved psychological functioning sixty participants were recruited from a high school in northwesten switzerlandthey were randomly assigned to either a running group or a control group, 30 to each group the running group ran every moming for a little over 30 minutes on weekdays for a three-week period. all participants used a sleep log for subjective evaluation of sleep, and sleep was also objectively assessed at the beginning and end of the study using a sleep electroencephalographic device that measured quantities such as sleep efficiency and time spent in the four different sleep phases. running was found to have a positive impact on both objective and subjective measures of sleep functioning what are the explanatory variable(s) and the response variable(s)? (a) outline the design of the experiment (b) (c) here are some more details on the treatment and control groups. all participants arrived at school at 7 a.m., and the running group did two laps on the track and then ran cross countrv in groups of at least four people for 30 minutes the control group remained seated at the track, worked on horpework. and interacted with each other. when the runners returned, all participants prepared for school and ate a breaktast that was provided. iwhy do you think the experimenters had the control group arrive at 7 am interact withdassmates and have breaktast together? explain. do you think having the control eroup do these activities is important for the types of conclusion that can be reached? how?

What happened in georgia as a result of the supreme court ruling in brown v. board of education? the sibley commission was formed all public schools were desegregated the southern christian leadership was formed the general assembly passed laws to keep schools segregated.

According to the federal regulations, which of the following studies meets the definition of research with human subjects? a. a researcher uses the customs office’s passenger lists for ships bringing immigrants to the us between 1820-1845 to track the numbers of immigrants from certain ethnic groups.b. a researcher conducts a linguistic study of comments posted on a local public blog.c. a developmental psychologist videotapes interactions between groups of toddlers and their care givers to determine which intervention methods most effectively manage aggression.d. a researcher asks the director of a local free clinic about the number of patients in the last two years with newly diagnosed hiv/aids.