A submarine is powered by a nuclear reactor that consists of the reactor coolant, steam generation and other support systems that supply steam to the engine room. The pressurized water reactor (PWR) uses 20-45% enriched uranium-235 fuel to produce 165 MW of power, driving two 26 MW steam turbines that generate electricity and drive the propeller shaft The submarine has a displacement of 19800 tons submerged, crew of 105, length of 185 m and width of 12 m. Calculate the speed of the submarine when surfaced and submerged in kn (knots) or km/h. a) Use the PWR data to determine amount of power generated & use shaft work correlation to calculate the submarine propulsion when surfaced & submerged b) The speed of the submarine must be realistic as the fastest submarine speed recorded is 32 kn. Show all necessary calculations c) Specify no of screws/blades from your calculation

1 a

2 b

3 b

4 d

5 d

6 d

explanation:

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

i think it would be 5

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.