Physics, 17.01.2020 02:31 smcculleymcculley
Abdominal breathing is a condition in which only the inferior half of the lungs can be seen expanding and contracting with each breath. which of the following would cause abdominal breathing?
damage to the nerves that control the diaphragm
damage to the nerves that control the rib muscles
damage to the medulla oblongata
damage to the respiratory center
Answers: 2
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An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?
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The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).
Answers: 3
Physics, 22.06.2019 16:40
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
Abdominal breathing is a condition in which only the inferior half of the lungs can be seen expandin...
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