Blood is accelerated from rest to 30.0 cm/s in a distance of 1.80 cm left ventricle of the heart. (a) Make a sketch of the situation. (b) List the knowns in this problem. (c) How long does the acceleration take? To solve this part, first identify the unknown, then discuss how you chose the appropriate equation to solve for it. After choosing the equation show your steps in solving fir the unknown, checking your units. (d) Is the answer reasonable when compared with the time for a heartbeat?
Blood is accelerated from rest to 30.0 cm/s in a distance of 1.80 cm left ventricle of the heart. (a) Make a sketch of the situation. (b) List the knowns in this problem. (c) How long does the acceleration take? To solve this part, first identify the unknown, then discuss how you chose the appropriate equation to solve for it. After choosing the equation show your steps in solving fir the unknown, checking your units. (d) Is the answer reasonable when compared with the time for a heartbeat?
Blood is accelerated from rest to 30.0 cm/s in a distance of 1.80 cm left ventricle of the heart. (a) Make a sketch of the situation. (b) List the knowns in this problem. (c) How long does the acceleration take? To solve this part, first identify the unknown, then discuss how you chose the appropriate equation to solve for it. After choosing the equation show your steps in solving fir the unknown, checking your units. (d) Is the answer reasonable when compared with the time for a heartbeat?
Please answer the following question(s):
1. The speed of a boat in still water is vá. A river flows with a speed of v₁. The boat travels
distance of 19 miles downstream in a river in 1 hour. However, the return journey takes 2
hours. Calculate the vand v₁.
Hint: Velocity=displacement/time. Displacement can be positive of neagtive depending on the
direction. You will first need to set up the equations by taking into account the resultant
velocity of the boat in flowing water. Consider the direction the river is flowing to be positive.
Set up two equations, one for the downstream journey and one for the upstream journey, in
terms of "v" and "v":
Do v" and "v, add or substract downstream to give the resultant downstream velocity?
Do v" and "v, add or substract upstream togive the resultant upstream velocity? Use the
upstream direction as negative. The resultant upstream velocity should be negative.
vb
vb
Downstream
positive
Vr
Upstream
negative
Vr
Hi I am in phyiscs I and it has the problem a runner ran the marathon (approx. 26.1) in 2 hours and 57 min. What was the average speed of the runner in m/s?
I understand that I would have to divide the total distance by the total time, but I'm not sure how they changed the miles to meters.
Please detalied steps of how to solve this so I can understand it. Thank you!
1. 1. Draw a graph of velocity as a function of time2. Determine the following from your graph:(a) The change in velocity per unit change in time (i.e. acceleration of the ball). Illustrate onyour graph and show the calculation below. (b) The velocity at t = 0.84 s (interpolation). Illustrate on your graph and write the value below.(c) The velocity at t = 1.74 s (extrapolation). Illustrate on your graph and write the value below.(d) Set up an empirical equation for the velocity of the ball at different times. This equationshould use the numerical values of the constants and indicate their units.
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