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A vertical pipe of length 1.0 meter and diameter 5.0 carries a water flow of 0.2 m3/s.Based on your gut feeling, is the pressure difference due to height greater or less than the pressure difference due to viscosity. Calculate these pressure differences due to each effect and compare.
You are standing at rest with respect to the earth holding a lance which you measure as 10 meters long and a knight traveling on horseback at .7c is holding a lance which he measures as 10 meters long. Which lance hits the other person first
Suppose that the current is used up as it moves through a resistor. The potential difference across the resistor is kept the same and V/I = R. how can the resistance of the resistor be constant
A balloon is filled with helium gas at 20.0 degrees C and 1.0 atm pressure (1 atm = 1.01 x 10^5 N/m^2). What is the heat gained or lost by the helium
The focal length of the eyepiece of a certain microscope is 19 millimeter. Find the overall angular magnification of microscope
A metal ball with a mass of 3.71·10-6 kg and a charge of +5.77 mC has a kinetic energy of 4.99·108 J. It is traveling directly at an infinite plane of charge with a charge distribution of +3.21 C/m2. If it is currently 1.87 m away from the plane of c..
A simple pendulum has a mass of 0.550 kg and a length of 4.00 m. It is displaced through an angleof 55.0° and then released. What is the maximum angular acceleration
A coil of Nichrome wire is 20.0 m long. The wire has a diameter of 0.340 mm and is at 20.0°C. If it carries a current of 0.500 A, what is the magnitude of the electric field in the wire?
A surveyor gauges the distance across a straight river by the following method: Starting directly across from a tree on the opposite bank, he walks 115 m along the riverbank to establish a baseline. Then he sights across to the tree. The angle from h..
Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), each with a mass of 3.27e-25 kg. Determine the radius of the path
The moon orbits the earth at a distance of 3.85 x 108 meter. Obtain the period for the moon motion around the earth
A ball is thrown at an angle of 30.9 degrees above the horizontal at a speed pf 8.77 m/s. What is the vertical component of the ball's velocity
An image of the moon is created by reflection off of a concave mirror at a point 6.0cm from the mirror. where will the image be
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