Question

What is the buoyancy force equal to for (a) an object in water and (b) an...

What is the buoyancy force equal to for (a) an object in water and (b) an object in air?

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The buoyant force is equal to the weight of the fluid displaced by the object when immersed in the fluid.

Supposed the object is in the air then the buoyant force will be

B = weight of air displaced

B = mg

B = density of air X volume of air displaced X g

as the volume of air displaced is equal to the volume of the object

B = density of air X volume of object X g

similarly when the object is completely immersed in water then the buoyant force will be

B = weight of water displaced

B = mg

B = density of water X volume of water displaced X g

as the volume of water displaced is equal to the volume of the object when completely immersed

B = density of air X volume of object X g

since the density of water is more than air the buoyant force is more in water.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
a) If an object floats, partially submerged, what is true about the buoyancy force and gravitational...
a) If an object floats, partially submerged, what is true about the buoyancy force and gravitational forces acting on the object? b) How does the buoyancy force acting on the partially submerged object compare to what the buoyancy force would be if the entire object were submerged? c) How are the densities of the object and the fluid related if the object floats? d) Sinks? e) Remains suspended, neither floating nor sinking?
What is the buoyancy force upwards due to the air surrounding the balloon? ii) If we...
What is the buoyancy force upwards due to the air surrounding the balloon? ii) If we heat the air inside the balloon from 293 K (or 20˚ C) to 393 K (or 120˚ C), how does the mass of the air inside the balloon compare to the mass of an equivalent volume of air outside the balloon? The mass of the air inside the balloon is larger. The mass of the air inside the balloon is smaller. The mass of...
What is the amount of force required to lift an object against the force of gravity...
What is the amount of force required to lift an object against the force of gravity equal to? What is the only part of an applied force that performs work on an object?
Is the normal force exerted on an object always equal to the object's weight?
Is the normal force exerted on an object always equal to the object's weight?
1.The acceleration of an object is equal to the rate of change of its position the...
1.The acceleration of an object is equal to the rate of change of its position the rate of change of its velocity the rate of change of its speed only the time an object has been in motion 2. What two forms of energy does a rollercoaster transfer between? Applied force to gravitational force Normal force to friction force Air resistance force to tension force Potential energy to kinetic energy 3. What is the amount of matter an object contains?...
You have decided to try to replicate Archimedes task of finding the density of an object...
You have decided to try to replicate Archimedes task of finding the density of an object by submerging into a liquid and finding the displaced volume. However, you modified the process to be more accurate. First you place the unknown object by placing it on a scale which measures the normal force at 20N. To find the density, you place the object and scale in water and measure the normal force at 17.5N. (8pts) Draw a force diagram for both...
A small rock moves in water, and the force exerted on it by the water is...
A small rock moves in water, and the force exerted on it by the water is given by equation f=kv f=kv . The terminal speed of the rock is measured and found to be 2.2 m/s m/s . The rock is projected upward at an initial speed of 5.7 m/s m/s You can ignore the buoyancy force on the rock
Consider a stationary submarine completely submerged in the water in the Pacific Ocean. Take the density...
Consider a stationary submarine completely submerged in the water in the Pacific Ocean. Take the density of sea water to be 1030kg/m^3. a) What is the net force acting on the submarine? b) What is the average density of the submarine (including the air)? c) If the mass of the submarine is 3.5x10^7kg, what is the volume of the submarine? d) What is the buoyancy force acting on the submarine? e) Imagine that the submarine drops a large rock decreasing...
1.)The Buoyant Force from a fluid to an object depends on which of the following factors?...
1.)The Buoyant Force from a fluid to an object depends on which of the following factors? a.)The volume of the object b.)The volume of the fluid c.)The density of the fluid d.)The density of the object 2.)Why did the Titanic sink after it hit an iceberg and water rushed into the hull through the hole created by the collision? a.)The density of water has increased b.)The density of the boat increased c.)The mass of the boat has decreased d.)The volume...
A small rock moves in water, and the force exerted on it by the water is...
A small rock moves in water, and the force exerted on it by the water is given by equation f=kvf=kv. The terminal speed of the rock is measured and found to be 1.8 m/sm/s . The rock is projected upward at an initial speed of 6.6 m/sm/s . You can ignore the buoyancy force on the rock. A)In the absence of fluid resistance, how high will the rock rise? B)In the absence of fluid resistance, how long will it take...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT