Fluid statics

If you tried to nonchalantly smuggle gold bricks by filling your backpack, whose dimensions are 60cm x 25cm x 15cm, what would its mass be?

Fluid Statics

The specific gravity of ice is .917, whereas that for seawater is 1.025. What fraction of an iceberg is above the surface of the water? *note- if possible, please explain this in the simplest way you can- i'm not naturally a science kinda gal! Thanks :)

Fluid Statics

A 3.15kg piece of wood (SG= .50) floats on water. What minimum mass of lead, hung from it by a string, will cause it to sink? *note- please explain this in the simplest way possible if you can! thank you :)

Fluid Dynamics

A 5/8 inch (inside) diameter garden hose is used to fill a round swimming pool 6.1m in diameter. How long will it take to fill the pool to a depth of 1.2m if water issues from the hose at a speed of 0.33m/s? *note- please explain this in the simplest way possible if you can! thank you :)

Fluid Dynamics

What gauge pressure in the water mains is necessary if a firehose is to spray water to a height of 15m?

Fluid Dynamics

If wind blows at 25m/s over your house, what is the net force on the roof if its area is 240m² and is flat?

Fluid Dynamics

During each heartbeat, approximately 70cm³ is pushed from the heart at an average pressure of 105mm-Hg. Calculate the power output of the heart, in watts, assuming 70 beats per minute. *please explain this as simply as possible- thanks so much :)

Torque, center of mass

The masses of the Earth and Moon are 5.98 x 10^24kg and 7.35 x 10²²kg, respectively, and their centers are separated by 3.84 x 10^8 m. (a) where is the CM of this system located? (b) what can you say about the motion of the Earth-Moon system around the sun, and of the Earth and Moon separately around the Sun? *note- ple ...continues

Torque, center of mass

A person exerts a force of 38N on the end of a door 96cm wide. What is the magnitude of the torque if the force is exerted (a)perpendicular to the door and (b)at a 60.0° angle to the face of the door? *note- please explain this in the simplest terms possible for me- thank you so much :)

Equilibrium

A 67.0kg adult sits at one end of a 10.0m board, on the other end of which sits his 23.0kg child. Where should the pivot be placed so the board (ignore its mass) is balanced?