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(1) A constant-pressure insulated piston-cylinder device contains 1.7 kg of saturated liquid-vapor mixture of water at 150 kPa with an initial quality of 0.2. Energy is then added to the system by an electric heater until all the liquid is vaporized. The environment is at 99 kPa and 2°C. Calculate the change in energy of the contents in kJ.
What thickness of board (calculated to 0.1 cm) would it take to stop the bullet, suppose that the acceleration through all boards is the same.
Two moles of an ideal gas are placed in a container whose volume is 6.9 x 10-3 m3. What is the average translational kinetic energy of a molecule of the gas
A straight wire in a magnetic field experiences a force of 0.029 N when the current in the wire is 2.5 A. What is the new current
Suppose one gallon of gasoline produces 1.41×108 J of energy, and this energy is sufficient to operate a car for 20.0 miles. how many miles could the car go on a single tablet
Consider two solid conducting spheres of radii r1 = 2 cm and r2 = 3 cm. Sphere 1 initially carries a net charge of +6 ?C, What is the voltage at the surface of sphere 1? What is the net charge on sphere 1? On sphere 2
A living specimen in equilibrium with the atmosphere contains one atom of 14C (half-life = 5 730 yr) for every 7.70 1011 stable carbon atoms. Find the number of carbon atoms in the sample
A particular satellite was placed in a circular orbit about 145 mi above Earth. Determine the time required for one complete revolution
As a baseball is being caught, its speed goes from 36 to 0 m/s in about 0.009 s. Its mass is 0.145 kg. What is the size of the force acting on it
Joseph is standing 0.80 meters in front of a big spherical mirror (concave mirror), and sees his image upright and magnified 3.0x bigger than he is. Find the radius of curvature of the mirror
A 0.042 kg aluminum bullet traveling at 456 m/s strikes an armor plate and comes to a stop. what is the bullet's temperature change in degrees Celsius
an elastic collision between two bodies in which the collision is not head-on. Projectile particle m1 is an alpha particle and target m2 is an oxygen nucleus. Find the initial speed of the alpha particle
A small block having mass m sits on a uniform disk that has radius R=0.5m. What is the initial angular velocity of the disk
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