6. A vessel of base area 100 cm x 60 cm and height 200 cm is completely filled with a liquid of density
1.1 x 103 kg m- 3.
(a) Ignoring the atmospheric pressure, find :
(i) the thrust at the bottom of the vessel,
(ii) the pressure at the bottom of the vessel,
(iii) the pressure at a depth of 5 cm from the free
surface,
(iv) the net force experienced by a metal foil of
area 10 cm² placed at a depth of 5 cm from
the free surface,
(b) The thrust at the bottom of the vessel if the
atmospheric pressure equal to 1 x 105 N m2 is
taken into account.
Take g = 9.8 m s-2

! 55 !  

write a paragraph or story to explain the transformation between potential and kinetic energy as shown in your picture or model.  

you should have at least 5 complete sentences with a main idea and supporting details.  

you must include the following words:  

potential energy

kinetic energy

mechanical energy

conservation of energy

dude, this is hard lol : ))

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation:

force required to detach it is given by

charges are taken to be fundamental charge

now we have

so above is the minimum distance at which it will detach