• Fora person at rest, the blood pressure in the aorta is 120 torr and the velocity of the blood is 25 cm/s. The person then goes for a brisk walk raising the blood velocity to 100 cm/s. Using Bernoulli's equation and assuming the height of the blood remains constant, calculate the blood pressure in the aorta during the brisk walk. Hint: Convert everything to standard units, for example, 1cm = 0.01 m. The standard unit for pressure is Pascal (Pa, although blood pressure is usually reported in torr). 1 torr = 133-32 Pa • (1 Pa = 1 kg. m.s).

Which one of the following research methods can show cause and effect

Astudent throws a water balloon with speed v0 from a height h = 1.76 m at an angle θ = 21° above the horizontal toward a target on the ground. the target is located a horizontal distance d = 9.5 m from the student’s feet. assume that the balloon moves without air resistance. use a cartesian coordinate system with the origin at the balloon's initial position. (a) what is the position vector, rtarge t, that originates from the balloon's original position and terminates at the target? put this in terms of h and d, and represent it as a vector using i and j. (b) in terms of the variables in the problem, determine the time, t, after the launch it takes the balloon to reach the target. your answer should not include h. (c) create an expression for the balloon's vertical position as a function of time, y(t), in terms of t, vo, g, and θ. (d) determine the magnitude of the balloon's initial velocity, v0, in meters per second, by eliminating t from the previous two expressions.

According to piaget’s stages of cognitive development, the child does not differentiate between self and other objects. the child repeats rewarding activities, discovers new ways to get what he or she wants, and may have imaginary friends. which period is described?