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The pulmonary artery, which connects the heart to the lungs, has an inner radius of 2.2 mm and is 8.6 cm long. If the pressure drop between the heart and lungs is 400 Pa, what is the average speed of blood in the pulmonary artery?
A woman takes her dog Rover for a walk on a leash. To get the little pooch moving forward, How much force is tending to pull Rover forward
A satellite orbits at a distance from the Earth's center of about 7.20 Earth radii, What distance (in meters) does the satellite travel in one day
A police car with a siren of frequency 8 kHz is moving with uniform velocity 36 km/hr towards a tall building which reflects the sound waves. The frequency of the siren heard by the car driver is
The excess internal energy of metabolism is exhausted through a variety of channels, such as through radiation and evaporation of perspiration. Calculate the rate at which you lose energy by exhaling humid air
An LR Circuit consist of an inductor with L = 2.50*10^-4 H and a resistor with R = 1.10 ohm connected in series to an oscililating source of emf. What is the phase angle of the current
Start from the expression of the electric filed outside an infinite sheet of uniform surface charge density, E=sigma/2epsilon, derive the electric field
What is the net upward force on an airplane wing of area 20.0 m2 if the speed of air flow is 221 m/s across the top of the wing and 206 m/s across the bottom
the world speed record on water was set october 81978 by ken warby of blowering damaustralia. if ken drove his
With what velocity does the wrench strike the ground. What is magnitude and direction of the boat's acceleration? Enter a positive answer for a direction due west, or a negative answer for a direction due east.
Suppose that a person in Tilted Land throws a ball straight up at 20 m/s. Where does the ball hit the ground?
find frequencies of vibration of the piano wire. Car 1 has 3 times the mass of car 2, but only 0.5 as much kinetic energy. What is the ratio between the speeds of the two cars (v1/v2)? You must type your answer as a numerical value.
A box of books is initially at rest a distance D = 0.530 m from the end of a wooden board. Find the speed of the box as it reaches the end of the board
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