# physics

posted by .

A cube of balsa wood (side length = 0.25 m) is tied with a string to the bottom of a waterfilled
container. The wood is completely immersed. What is the tension in the string?

• physics -

T=F(buoyancy) –mg =
= ρ(water)Vg - ρ(balsa)Vg=
=Vg[ρ(water) - ρ(balsa)] =
=0.25³•9.8(1000 – 160)=129 N

## Respond to this Question

 First Name School Subject Your Answer

## Similar Questions

1. ### physics

A string is tied across the opening of a deep well, at a height 5 m above the water level. The string has length 7.51m and linear density 4.17 g/m; any time there is a wind, the string vibrates like mad. The speed of sound in air is …
2. ### physics

A light string has its ends tied to two walls separated by a distance equal to five-eighths the length of the string. A 53 kg mass is suspended from the center of the string, applying a tension in the string. What is the tension in …
3. ### physics

A light string has its ends tied to two walls separated by a distance equal to five-eighths the length of the string. A 53 kg mass is suspended from the center of the string, applying a tension in the string. What is the tension in …
4. ### Physics

A rock of mass m = 1.8 kg is tied to a string of length L = 2.4 m and is twirled in a vertical circle as shown in the figure below. The speed v of the rock is constant; that is, it is the same at the top and the bottom of the circle. …
5. ### physics

A 2.1 kg ball tied to a string fixed to the ceiling is pulled to one side by a force to an angle of è = 26.6 how large is F?
6. ### physics

a .150kg object tied to a string is whirled in a horizontal circle ata constant angular speed of 3.50 revolutions per second. the tension is the string is 75newtons. what is the length of the string?
7. ### physics

A solid of mass 1kg suspended by a string is completely immersed in water. If the tension in the string is 5N, calculate the upthrust on the solid. (take g = 9.78m/s)
8. ### math

A cube of wood measures 5 centimeters on a side and weighs 19 grams. What is the density of the cube of wood?
9. ### Medical physics

A silver cube (density of silver is 10 g/cm3) with side length of 3 cm weighs more than an aluminium cube (density of aluminium is 2.96 g/cm3) with side length of 4 cm. The cubes are each suspended by a string and allowed to be completely …
10. ### physics

As shown in the diagram, a bullet of mass 7.0 g strikes a block of wood of mass 2.1 kg. The block of wood is suspended by a string of length 2.0 m, forming a pendulum. The bullet lodges in the wood, and together they swing upward a …

More Similar Questions