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A small plastic pipe carries water horizontally at a speed of 10 m s-1. A section of the pipe bulges out so that the radius is twice that of the rest of the pipe. If the gauge pressure in the pipe is ordinarily +90 kPa what is the gauge pressure in the bulge (in kPa) (the density of water is 1000 kg m-3)?
A block of mass 2.5 kg is attached to a horizontal spring that has a force constant of 1.40 x 103 N/m, and is free to slide on a frictionless surface as shown. Find the work done by initially compressing the spring
a horizontal spring mass system oscillates on a frictionless table. find the maximum extension of the spring
In determining the specific heat of a new metal alloy, 150g ofthe substance is heated to 400C and then placed in a 200g aluminiumcalorimeter containing 400g of water at 10C. If the finaltemperature of the mixture is 30.5C, what is the specific hea..
Calvin (mass m) is sliding down a snow-covered hill (height h) on his frictionless toboggan. Exactly halfway down the hill he hits Hobbes (also mass m) who lands in Calvin's lap and the two of them continue down the hill. How fast are they going a..
In Rutherford’sfamous scattering experiment that led to the planetary model of theatom, alpha particles (having a charge of + 2e and a mass of 6.64 x10-27 kg) were fired toward a gold nucleus with charge of + 79e. Thealpha particle, initially very..
Two capacitor plates are equally and oppositely charged. They are separated by 1.4cm. An electron is released from rest at the surface of the negative plate and, at the same time, a proton is released from rest at the surface of the positive plate.
"A grasshopper leaps into the air from the edge of a vertical cliff, as shown in the figure below.Use information from the figure to find the initial speed of the grasshopper.Use information from the figure to find the height of the cliff."
When responding to sound, the human eardrum vibrates about its equilibrium position. Suppose an eardrum is vibrating with an amplitude of 7.8x10-7 m and a maximum speed of 2.7x10-3 m/s. What is the maximum acceleration of the eardrum
Two objects of masses m and 3.00 m are moving towards each other along the x-axis with the same initial speed of v. The object with mass m is travelling to the left.
A diffraction grating is made up of slits of width 310 nm with a 930 nm separation between centers. The grating is illuminated by monochromatic plane waves, λ = 615 nm, the angle of incidence being zero.
he beaker has a mass 15 grams when its empty the beaker plus the liquid has a mass of 38 grams. the liquid has a volume
A small blob of putty of mass m = 80.0 gram falls from the ceiling and lands on the outer rim of a turntable of radius R =15.0 centimeter, Compute what is the post collision angular speed of the turntable-putty system
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