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A horizontal pipe carries a easily flowing liquid with density 1.19 × 103 kg/m3. At locations 1 and 2 along the pipe the diameters are 6.41 cm and 2.61 cm, respectively. Is the flow speed at location 2 higher or lower than at location 1?
The flow speed at location 1 is 2.03 m/s. What is the pressure dissimilarity between location 2 and location 1 (including its sign)? Ignore viscosity.
A new frisbee is being developed that is madefrom four (4) masses that all are located 1m from thecenter (it's a BIG ROUND frisbee!). the masses are 1 kgeach, and are connected by thin, massless rods. Not countingthe rods, calculate the moment of ine..
A hungry 12.5{\rm kg} predator fish is coasting from west to east at 80.0{\rm cm}/{\rm s}, Find the magnitude of the velocity of the large fish just after it snapped up this meal
q1. a rightward force of 302 n is applied to a 28.9 kg crate to accelerate it across the floor. the coefficient of
Choose one part of the photo-electric experiment that cannot be explained by assuming that light is a wave. Why do we need the concept of light as a particle?
A rectangular fish tank measures 30 cm by 75 cm by 40 cm high. The tank is filled with water to a depth of 37 cm. What is the total force of the water on the bottom
as an Acapulco cliff diver drops to the water from a height of 48 m, his gravitaional potential energy decreases by 27000J. What is the divers weight in newtons
A 100 kg person is 3/4 three fourths of the way up a 10 meter ladder that is resting against a smooth friction less wall. Compute the normal force of the wall on the ladder
To determine the center of mass of her body, a student lies on aplank of mass m=10 kg. The plank is supported by two scales at itsends. The distance between the scales is 2.5 meters. The left scalereads 339 N and the right reads 171 N.
The resistance of a copper wire is 0.8? at 20 DC. When it is placed in an oven, its resistance is 1.2?. What is the temperature of the oven
A diffraction grating with 610 lines per mm is illuminated with light of wavelength 520 nm. A very wide viewing screen is 2.1 m behind the grating. What is the distance between the two m= 1 fringes? Use two significant figures
A beam of neutrons that all have the same energy scatters from the atoms that have a spacing of 9.30×10^?2nm in the surface plane of a crystal
A household water supply taps off the water main. The tap is a copper tube with a 1inch inside diameter. What will the flow be from the pipe
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