A spring balance reads 10 kg when a bucket of water is suspended from it. What will be the reading of the spring balance when (a) an ice cube of mass 1.5 kg is put into the bucket? (b) an iron piece of 7.2 kg suspended from another spring is immersed with half its volume inside water in the bucket? Relative density of iron is 7.2

Q: total height of

A:

Q: A block of iron weighs 98 N in air. How much does it weigh when it is completely immersed in water?…

A: Given data: Weight of the object in air = 98 N Density of iron= 7.86 x 10^3 g= 9.8 m/s^2 Need to…

Q: Mercury is a liquid metal whose use as a working substance in barometers is very convenient, but why…

A: To explain : Why is it preferable to use pascals instead of mm Hg to measure the pressure ?

Q: Silver and Aluminium has different densities of 10,5 g/cm3 and 2,7 g/cm3 respectively. A piece of…

A: Silver has density ρ1=10.5 g/cm3 and aluminum has density ρ2=2.7 g/cm3. Pieces of both are put in a…

Q: Three children, each of weight 395 N, make a log raft by lashing together logs of diameter 0.42 m…

A:

Q: Icebergs have an average density of 920 kg/m3. Seawater has an average density of 1030 kg/m3. An…

A:

Q: Tripling the diameter of a pipe would cause the fluid velocity to: O increase by a factor of 9 O…

A: If a pipe diameter increased fluid velocity rate increase, pressure will be decreased

Q: "A water enters a cylindrical pipe with a cross-sectional radius of 1 m with a speed of 2 m/s. If…

A: Given that, Radius of one end of the pipe r1= 1 m Speed of water at entering the end v1= 2 m/s…

Q: Sea water has a density 1030 kg/m3. A submarine has a mass of 22.5x106 kg when floating in sea water…

A:

Q: You are at sea level and the temperature outside is 4 degrees Celsius.  A block of solid material is…

A: Temperature=4o C Dimensions of Block l=42.1 cm=0.421 m b=67.6 cm=0.676 m h=45.1 cm=0.451 m In this…

Q: Three children, each of weight 398 N, make a log raft by lashing together logs of diameter 0.24 m…

A: Buoyancy produced by each log can be determined by the taking difference between the weight of a log…

Q: Spherical panicles of a protein of density 1.8 g/cm3 are shaken up in a solution of 20°Cwater. The…

A:

Q: A cube with 10.0-cm sides and a mass of 0.750 kg is tethered by a string in a vat of water. (a) What…

A: side of cube = 10 cmside of cube = 0.1 m mass = 0.75 kg

Q: Consider a 75-kg woman who has a total foot imprint area of 400 cm². She wishes to walk on the snow,…

A: The mass of the woman is 75 kg.The cross-section area of a foot is 400 cm2..The maximum pressure is…

Q: Figure (a) below shows a U-shaped tube containing an amount of mercury. The left arm of the tube has…

A:

Q: The end of a garden hose is enclosed in a mesh sphere of radius 4 cm. If the hose delivers five…

A:

Q: Sea water has a density 1030 kg/m3. A submarine has a mass of 22.5x106 kg when floating in sea water…

A:

Q: Figure (a) below shows a U-shaped tube containing an amount of mercury. The left arm of the tube has…

A: Given : A1=11 cm2=11x10-4 m2 A2=4.90 cm2=4.90x10-4 m2 Mass of water poured=m=0.3 kg Density of…

Q: %3D Water flows at 1.1 m/s through a hose with an internal diameter of 1.11 cm, exiting through a…

A: given:v1 =1.1 m/sd1 =1.11 cm =0.0111 mv2 =4.4 m/sd2 =?

Q: The students build a raft made of 15 logs lashed together. Each log is 53.2 cm in diameter and has a…

A:

Q: The plastic tube in the figure has a cross-sectional area of 4.71 cm². The tube is filled with water…

A:

Q: A person weighs 685 N in air but only 497 N when standing in water up to the hips. Find the volume…

A: We have to find the volume of person each legs. We are aware that a person's weight in the air is…

Q: A crown that is supposed to be pure gold has a mass of 850 g. Its apparent mass when immersed in…

A:

Q: Three liquids that will not mix are poured into a cylindrical container. The volumes and densities…

A:

Q: A 8.0 kg freshwater fish at the surface of a lake is neutrally is neutrally buoyant. If the density…

A:

Q: A simple U-tube contains mercury. When 11.2 cm of water is poured into the right arm, how high does…

A: Given, Water poured at right arm h1 = 11.2 cm = 11.2 x 10-2 m

Q: Air at sea level and 15 °C has an average density of 1.225 kg/m3. The density of n average person is…

A:

Q: Three liquids that will not mix are poured into a cylindrical container. The volumes and densities…

A:

Q: An ideal fluid flows through a horizontal pipe whose diameter varies along its length. Measurements…

A: As an ideal fluid flows through a horizontal pipe therefore there will be no exchange of energy due…

Q: A block of solid material is suspended from a wire and is completely submerged under fresh water.…

A: Given Mass of Seagull = 254 Gram = 0.254 Kg Dimension of Block = 90.9 cm x 53.5 cm x 59.7 cm = 0.29…

Q: A large weather balloon has a volume of 2000 m3 and a total weight of 800 N is filled with gas. The…

A:

Q: Five containers each hold the same volume of various liquids. Five blocks composed of various solids…

A: Archimedes' principle, which states that the buoyant force on an object submerged in a fluid is…

Q: A garden hose having an internal diameter 2.0 cm is connected to a lawn sprinkler that consists of…

A:

Q: A stick of butter has dimensions 130 mm × 30 mm × 30 mm and density pb = 870 kg/m³. It is placed in…

A: Given data: The dimension of butter bar is Vobject=130 mm x 30 mm x 30 mm. The density of butter is…

Q: if a 33 g object has a volume of 47 cm3, would you expect it to sink or float in water ? Why?

A: Given:Mass of the object = 33 gVolume of the object = 47 cm3

Q: Figure (a) below shows a U-shaped tube containing an amount of mercury. The left arm of the tube has…

A:

Q: An empty balloon that weighs 0.722 g is filled with helium at normal atmospheric pressure (101.3…

A: Given quantities: mass of the empty balloon (m) = 0.722 g normal atmospheric pressure (P) = 101.3…

Q: Two soap bubbles are floating around in air. One is four times the volume of the other. The excess…

A:

Q: Silver and Aluminium has different densities of 10,5 g/cm3 and 2,7 g/cm3 respectively. A piece of…

A: Density of silver ρ1=10.5 g/cm3 and density of Aluminum ρ2=2.7 g/cm3. We have a beaker filled with…

Q: When a man weighing 800 N jumps into an iceberg he finds out that his weight is just enough to…

A:

Q: A block of wood with dimensions 60.0 cm × 40.0 cm × 8.0 cm floats on water with 75% of its volume…

A: Solution: Given: 100 cm = 1 m 106 cm3 = 1 m3 Dimension of block of wood = 60.0 cm × 40.0 cm × 8.0 cm…