# PHYSICS

posted by .

A cylindrical metal can with a radius of 4.25 cm is floating upright in water. A rock is placed in the can, causing it to sink 0.0230 m deeper into the water. What is the weight of the rock?

• PHYSICS -

pi r^2 (.023) = pi (.0425)^2(.023) =1.3*10^-4 m^3
density = 1000 kg/m^3
so mass of rock = .13 kg
so weight = mg = 1.28 Newtons

## Similar Questions

A cylindrical metal can with a radius of 4.25 cm is floating upright in water. A rock is placed in the can, causing it to sink 0.0230 m deeper into the water. What is the weight of the rock?
2. ### To Mrs. Sue

a pyrite rock has density of 5.02 g/cm What will happen when the rock is placed in a beaker of mercury which has a denisty of 13.6 g/cm3?
3. ### College Physics

Part A) A 2.2 kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 5.0 N is exerted on it by water resistance. Let y=0 be at the bottom of the pond. Calculate the nonconservative …
4. ### physics

a 100 kg boulder is placed under the surface of water. its volume is 0.5 x 10^5 cm^3. what is the weight of the rock while under water; compare that to the weight of the rock in air (sitting on the ground) i just found the weight of …
5. ### Math

A rock is placed into a graduated cylinder containing 80 mL of water. What is the volume of the rock if the water level rises to the 120 mL level?
6. ### Physics

A cylindrical metal can with a radius of 4.25 cm is floating upright in water. A rock is placed in the can, causing it to sink 0.0234 m deeper into the water. What is the weight of the rock?
7. ### Physics

A rock is dropped from a bridge to the water below. It takes 2.40 s for the rock to hit the water. Find the speed (in m/s) of the rock as it hits the water. How high (in metres) is the bridge above the water?
8. ### Physics, tempreture

A rock of mass 0.234 kg falls from rest from a height of 28.9 m into a pail containing 0.492 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1840 J/kg C°. Ignore the heat …
9. ### Physics

A rock of mass 0.234 kg falls from rest from a height of 28.9 m into a pail containing 0.492 kg of water. The rock and water have the same initial temperature. The specific heat capacity of the rock is 1840 J/kg C°. Ignore the heat …
10. ### SCIENCE

Which of the following is equal to the buoyant force of a rock placed in a beaker of water?

More Similar Questions