please help me solve this one

[saadan]

1.) if the pressure at the base of the tank is 5000pa calculate the weight of the water acting on the tank bottom if it measures 80cm and 40cm? :eek: :eek: :eek:

20) a boy is in a brightly lit room when its dark outside. he looks towards a window and sees his reflection. a girl looks into the window from outside. how does what the girl sees differ from what the boy sees by reflection. the boys face is 1m from the window. how far must the boy move and in which direction before he is 7m from his own reflection? :confused: :confused: :confused:

[Jameson]

I'll start with the first one.

Pressure, P, is defined as: P = F/A, where F is the normal component of the force and A is the area. So in this case, you know the pressure and the area. With some rearanging, you can solve for F.

Also, remember that the standard SI units for displacement are meters, not centimeters. Don't forget to convert.

Jameson

[Ana_Albania]

I'll start with the first one.

Pressure, P, is defined as: P = F/A, where F is the normal component of the force and A is the area. So in this case, you know the pressure and the area. With some rearanging, you can solve for F.

Also, remember that the standard SI units for displacement are meters, not centimeters. Don't forget to convert.

Jameson


Right!
The answer for that is 160 kg!