A 6 kg block of material sinks in pure water (ρ_w=1000 kg/m^3 )and is held up by a string. If the tension in the string is 15 N, what is the density of the block of material? (1342 kg/m^3)
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A 6 kg block of material sinks in pure water (ρ_w=1000 kg/m^3
)and is held up...
2. 95% of a wood block is submerged in water (density= 1000 kg/m). A layer of...
2. 95% of a wood block is submerged in water (density= 1000 kg/m). A layer of oil with a density of 880 kg/m' is now poured on top, to a depth that more than covers the block, as shown. Find the resulting new volume fraction submerged in water, V(in water) / V(block). Hints: (i) You get two buoyant forces - one for each liquid; Also note that (ii) volume, V(block) = V(in water) + V(in oil). d=880 kg/m² V =...
5. The area of the bonom sinks 2.8 m in the water. What is the weight...
5. The area of the bonom sinks 2.8 m in the water. What is the weight of the gravel and the barge of a rectanguler barge is 300 m When loaded widh gravel the barge o. A40-kg toy boar that is 0.7 times the density of water fxats in water. What mas of water is displaced 7. When a 90-N rock is suspended beneath the surface of water, its appurent weight is 60 N. Wh volume of water must therefore...
A swimming pool of depth 2.7 m is filled with ordinary (pure) water (ρ = 1000...
A swimming pool of depth 2.7 m is filled with ordinary (pure) water (ρ = 1000 kg/m3). (a) What is the pressure at the bottom of the pool? Pa (b) When the pool is filled with salt water, the pressure changes by 4.5 103 Pa. What is the difference between the density of the salt water and the density of pure water? kg/m3
3. A block of mass m is held motionless on a frictionless inclined plane by means...
3. A block of mass m is held motionless on a frictionless inclined plane by means of a string attached to a vertical wall as shown. (a) Make a free body diagram of the block. (b) Calculate the magnitude of the tension in the string if the mass of the block is 3 kg and angle 0 = 25°. (c) Find the normal force acting on the block. (d) If the cord is cut, find the magnitude of the resulting...
22. Two blocks having mass of 2 kg and 3 kg are placed as shown. 2-kg-block...
22. Two blocks having mass of 2 kg and 3 kg are placed as shown. 2-kg-block is attached to a wall with a string and 3-kg-block is pulled by a force F. Calculate the tension in the string if (a) F=8 N and (b) F=15 N. (Coefficients of static and kinetic friction between the blocks are 0.5 and 0.45 respectively but the ground is frictionless) (g=10 m/s2.) m =2 kg T F k=0,5 m=3 kg
A 10xcmx10cmx10cm cube of density 650 kg/m^3 and is submerged in a container filled with water...
A 10xcmx10cmx10cm cube of density 650 kg/m^3 and is submerged in a container filled with water of density of 1000 kg/m^3. it is initially held at rest by a string which is attached to the bottom of the container. When we cut the string, the cube starts moving upwards. Find the initial acceleration of the cube, immediately after its release. Answer in units of m/s^
A swimming pool of depth 2.5 m is filled with ordinary (pure) water (ρ = 1000...
A swimming pool of depth 2.5 m is filled with ordinary (pure) water (ρ = 1000 kg/m3). (a) What is the pressure at the bottom of the pool? 1.2550×105 Pa (b) When the pool is filled with salt water, the pressure at the bottom changes by 5.2 x103Pa. What is the magnitude of the difference between the density of the salt water and the density of pure water? Please show your work :)
QUESTION 9 A string with linear mass density 3.00 x 103 kg/m is held at 20.0...
QUESTION 9 A string with linear mass density 3.00 x 103 kg/m is held at 20.0 N tension. What would be the speed of a wave traveling along this string? 81.6 m/s
A block of mass M=0.919kg is floating stationary in a beaker of water. A string connected...
A block of mass M=0.919kg is floating stationary in a beaker of water. A string connected to the bottom of the beaker holds the block in place. The tension in the string is 7.10 N. The bottom of the block is floating a distance h=3.18cm above the bottom of the beaker. What is the magnitude and direction of the buoyant force acting on the block? What is the density of the block?
A 6-kg bucket of water is being pulled straight up by a string at a constant...
A 6-kg bucket of water is being pulled straight up by a string at a constant speed. What is the tension in the rope? A) about 42 N B) about 60 N C) about 78 N
2. 95% of a wood block is submerged in water (density= 1000 kg/m). A layer of oil with a density of 880 kg/m' is now poured on top, to a depth that more than covers the block, as shown. Find the resulting new volume fraction submerged in water, V(in water) / V(block). Hints: (i) You get two buoyant forces - one for each liquid; Also note that (ii) volume, V(block) = V(in water) + V(in oil). d=880 kg/m² V =...
5. The area of the bonom sinks 2.8 m in the water. What is the weight of the gravel and the barge of a rectanguler barge is 300 m When loaded widh gravel the barge o. A40-kg toy boar that is 0.7 times the density of water fxats in water. What mas of water is displaced 7. When a 90-N rock is suspended beneath the surface of water, its appurent weight is 60 N. Wh volume of water must therefore...
3. A block of mass m is held motionless on a frictionless inclined plane by means of a string attached to a vertical wall as shown. (a) Make a free body diagram of the block. (b) Calculate the magnitude of the tension in the string if the mass of the block is 3 kg and angle 0 = 25°. (c) Find the normal force acting on the block. (d) If the cord is cut, find the magnitude of the resulting...
22. Two blocks having mass of 2 kg and 3 kg are placed as shown. 2-kg-block is attached to a wall with a string and 3-kg-block is pulled by a force F. Calculate the tension in the string if (a) F=8 N and (b) F=15 N. (Coefficients of static and kinetic friction between the blocks are 0.5 and 0.45 respectively but the ground is frictionless) (g=10 m/s2.) m =2 kg T F k=0,5 m=3 kg
QUESTION 9 A string with linear mass density 3.00 x 103 kg/m is held at 20.0 N tension. What would be the speed of a wave traveling along this string? 81.6 m/s
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