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Steam enters an insulated pipe at 200 kPa and 200 degrees C and leaves at 250 kPa and 150 degrees C. The inlet-to-outlet diameter ratio for the pipe is D1/D2=1.80. Determine the inlet and exit velocities of the steam.
A cyclotron used to accelerate an alpha particle (m=6.65 x 10-27 kg q= 3.2 X 10-19 C) has a radius of .50 m and a magnetic field of 1.8 T. what is the force that acts on the alpha particle
A sanding disk with rotational inertia I is attached to an electric drill whose motor delivers a torque of magnitude? about the central axis of the disk. what is the magnitude of the angular momentum
A 12 g bullet travelling at 420 m/s is fired into the middle an unlatched 32.0 kg door. The door in hinged on one end, is 1.20 m wide and has I = 1/3 Md2. The bullet hits the middle of the door. What is the angular speed of the door just after the bu..
On a certain amusement park ride, passengers are seated in a horizontal circle of radius 7.5m. the seats begin to rotate from rest and are uniformly accelerated for 21 seconds to a most rotational speeds of 1.4 rad/s.
A 80cm long metal string under 34.5 N tension has a linear mass density 2.10x10^-4 kg/m. Find the frequencies of the first three harmonics
A woman rides on a Ferris wheel of radius 16 \rm m that maintains the same speed throughout its motion. What is her mass in kilograms
A certain crystal has a set of planes 0.31 nm apart. A beam of neutrons strikes the crystal at normal incidence, What is the de Broglie wavelength of the neutrons
a dog is walking slowly toward a motion detector. Draw a position graph that could represent this motion. Show your work.
For a spring-mass oscillator, if you triple the mass but keep the stiffness the same, what numerical factor does the period change? That is, if an original period was T and the new period is bT, what is b? It is useful to write out the expression ..
14g of nitrogen gas at 0°C and 1 atm is compressed in an isochoric process to an pressure of 20 atm. How much heat is inputted into the gas
An electron is in the fifth Bohr orbit of hydrogen. Find the speed of the electron. Find the current corresponding to the motion of the electron
How are radioactive isotopes produced?
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