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A section of pipe 100 ft long and 2 inches in diameter contains a fluid at 200 degree F flowing at a mass flow rate of 65 gallons per minute (gpm). The fluid has a density of 40 lbm /ft3 and a viscosity of 3.5 X 10-5 lb=sec / ft2. The relative roughness of the pipe is 7.5 x 10-5 Using Darcy's Equation, calculate the head loss for the section of pipe.
A cart is attached to a hanging mass by a string that passes over a pulley. Write an equation for the work done by friction when the cart is moving up the track at constant speed
A 0.03 kg bullet hits asteel plate and melts and splatters on impact. Assuming thatthe bullet recieves 80% of the collision energy, at what minimium speed must it travel to melt on impact?
When perspiration on the human body absorbs heat, some of the perspiration turns into water vapor. Find the average energy given to a single water molecule
You are standing on a brigde that is 50.0 m above a dried up riverbed. what is the minimum spring constant that the bungee cord must have for you not to hit the riverbed
Two particles are fixed to an x axis: particle 1 of charge -7.12 x 10-7 C is at the origin and particle 2 of charge +7.12 x 10-7 C is at x2 = 14.3 cm. Midway between the particles, what is the magnitude of the net electric field
A ball rolls horizontally off the edge of a tabletop that is 1.40 m high. What was its speed at the instant it left the table
The rock reaches a maximum height of 2×10^3 m, above the surface of the planet, before it falls back down. What was the first speed of the rock as it left the astronaut's hand.
A spherical mass on a rod of length L rotates rigidly about a fixed axis at the opposite end of the rod. What is the sphere's linear displacement
A spherically symmetric electromagnetic wave is emitted by a 1030 W source. What is the rms value of the electric field at that distance
21.18 g of copper pellets are removed from a 286°C oven and immediately dropped into 198.5 mL of water at 13°C in an insulated cup
A styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended
Light of wavelength 646 nm from a distant source is incident on a slit 0.760 mm wide, and the resulting diffraction pattern is observed on a screen 3.60 m away. What is the distance between the two dark fringes
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