A5.0kg rock whose density is 4800 kg/m3 is suspended bya string such that half of the rock's volume is under water. what is the tension in the string?

The tension in the string is 43.9 N.

Explanation:

Given that,

Mass of rock = 5.0 kg

Density of rock = 4800 kg/m³

We need to calculate the volume of rock

Using formula of density

Put the value into the formula

We need to calculate the volume of water

Put the value of volume

We need to calculate the mass of water displaced

Using formula of mass

We need to calculate weight of water displaced

Using formula of weight of water

Weight of rock is

We need to calculate the tension in the string

Using formula of tension

Put the value into the formula

Hence, The tension in the string is 43.9 N.

close lines strong magnet less close weaker

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.