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During each heartbeat, approximately 68 cm3 of blood is pushed from theheart at an average pressure of 105 mm-Hg. Calculate the poweroutput of the heart, in watts, assuming 80 beats per minute.
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Swimming at 1.50 m/s relative to still water, a swimmer heads directly across a river of width 80 m. He arrives 45.0 m downstream from the point directly across the river from his starting point. (a) What is the speed o ...
Question: A proton with an initial speed of 800000 m/s is brought to rest by an electric field. Part A- Did the proton move into a region of higher potential or lower potential? Part B - What was the potential difference ...
What is the ideal speed to take a 80 m radius curve banked at a 30.0° angle?
Question: This problem concerns the properties of circular orbits for a satellite of mass m orbiting a planet of mass M in an almost circular orbit of radius r. In doing this problem, you are to assume that the planet ha ...
Consider the following examples, which involve energy being transformed from one kind to another. Identify the initial input & final output forms of the energy in each case. Identifying intermediate energy conversions ma ...
Question: A solenoid 4.00 cm in diameter and10.0 cm long has 500 turns and carries a current of 15.0 A. Calculate the magnetic flux through the circular cross-sectional area of the solenoid. The response must be typed, s ...
Question: A particle moving on the x-axis experiences a force given by Fx = qx 2 , where q is a constant. How much work is done on the particle as it moves from x=0 to x=d? Express your answer in terms of some or all of ...
When scared, a nine-banded armadillo will jump straight up in the air. The armadillo launches itself upward from the ground with a speed of v0 = 3.81 m/s. How long will the armadillo remain more than 0.033 m off the grou ...
Question: A rectangular wooden block of weight W floats with exactly one-half of its volume below the waterline. The wooden block is removed from the water bath and placed in an unknown liquid. In this liquid, only one-t ...
Question: Pennies today are copper-covered zinc, but older pennies are 3.1 g of solid copper. What are the total positive charge and total negative charge in a solid copper penny that is electrically neutral?The density ...
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