Air enters axially in a centrifugal compressor at a stagnation temperature of 20°c and is compressed from 1 to 4.5 bars (stagnation pressures). the impeller has 19 radial vanes and rotates at 17000 rpm. isentropic efficiency of the compressor is 0.84 and the work input factor is 1.04. (1.4: c 1005/ determine: g)-the slip factor a)- 567.3 the velocity at the impeller tip in m/s 449,4. tip diameter of the impeller in cm. c)- 45.3. d)- the power required to drive the compressor when the mass flow rate is 2.5 kg/s in kw d)- 470.5 e)- 0.236 f)-50.5 g)- 0.896 h)-410.2 67.2 j)-657.2 k)-0.972

gpe = mass x gravity constant x height or… gpe = mgh

where… mass: measured in kilograms (kg)

gravity: gravity constant on earth = 10.00 m/s2

height: measured in meters (m)

gpe: measured in joules (j) or kilojoules (kj)

how do you solve gpe?

gravitational potential energy (gpe) is the energy an object has because of its position above the. ground.

gpe = mass x gravity constant x height or… gpe = mgh.

mass:

note: to earn full marks when solving science word problems, you must show your work:

formula.

example:

given values:

mass = 0.3 kg.

the inner core.

good luck: )

klicker

you'd use the equation that establishes a relationship between  energy  and  wavelength, which looks like this

e=h⋅cλ, where

λ  - the wavelength of the photon; c  - the speed of light, usually given as  3⋅108m/s; h  -  planck's constant, equal to  6.626⋅10−34j s

plug the value you were given for the energy of the photon in the above equation to get the wavelength

e=h⋅cλ⇒λ=h⋅ce

λ=6.626⋅10−34js⋅3⋅108ms−1.257⋅10−24j=1.581⋅10−1m