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1. A 31 g ice cube at its melting point is dropped into an insulated container of liquid nitrogen. How much nitrogen evaporates if it is at its boiling point of 77 K and has a latent heat of vaporization of 200 kJ/kg? Suppose for simplicity that the specific heat of ice is a constant and is equal to its value near its melting point.
2. The 1.25 kg head of a hammer has a speed of 8.2 m/s just before it strikes a nail (Fig. 14-17) and is brought to rest. Estimate the temperature rise of a 16 g iron nail generated by ten such hammer blows done in quick succession. Suppose the nail absorbs all the energy.
An electron passes through a point 2.71 cm from a long straight wire as it moves at 36.3% of the speed of light perpendicularly toward the wire
A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 53.5 m/s and returns the shot with the ball traveling horizontally at 39.0 m/s in the opposite direction. What work does the racquet do on the ball
question1youre ceo of a courier company and you decide to select an electric car for your fleet of vehicles. a
In maize, the A locus encodes an enzyme necessary for production of anther cyanine, a purple pigment. At this locus, a functional A allele is dominant to a non functional a allele. Kernels of maize line 1 are completely white. Kernels of maize line 2..
A proton is located at a distance of 0.420 m from a point charge of +8.30 micro coulombs. The repulsive electric force moves the proton until it is at a distance of 1.58 m from the charge. Assume that the electric potential energy lost with the syste..
A woman with mass 50.5kg is standing on the rim of a large disk that is rotating at 0.505rev/s about an axis perpendicular to it through its center. Calculate the magnitude of the total angular momentum of the woman-plus-disk system
A 203 rad dose of radiation is administered to a patient in an effort to combat a cancerous growth. Suppose that all of the energy deposited is absorbed by the growth.
You're planning to study in Europe, and you want a transformer designed to step 230 V. how many should the secondary have
An unstable high-energy particle is created in the laboratory and it move at a speed of 0.962c. Determine the proper distance traveled
A 10-g bullet moving 1000 m/s strikes and passes during a2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 300 m/s. To what maximum height will the block rise above its initial position?
An undersearesearch chamber is spherical with an external diameter of 6.00 m. calculate the buoyant force on the chamber
The Hubble Telescope orbits the earth in a near circular orbit of about 585 km above the Earth's surface. find the magnitude of the centripetal acceleration of the satellite
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