You are an astronaut in an orbiting space station and someone hands you two wooden balls, outwardly identical. One, however, has a gold core but the other does not. How can you tell them apart?

Q: A solid object will float in a fluid if __________. their densities are equal the object has a…

A: The average density of an object is what ultimately determines whether it floats. If the density of…

Q: You are floating on the surface of the water in a lake. A boat passes by, creating waves in the…

A: it is a case of wave motion. As boat passes it disturbs the water to move up and down that is…

Q: You observe two helium ballons floating next to each other at the ends of strings secured to  a…

A: Answer  Apparent force arise in a non inertial frames of reference, frames of reference that…

Q: Why mercury collects itself into drops when placed on a clean glass plate?

A: Cohesion is the property of like molecules to stick to each other due to mutual attraction. Adhesion…

Q: garden hose of inner radius 1.00 cm carries water at 2.26 m/s. The nozzle at the end has inner…

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Q: ) A thin-walled bowl in the shape of a hemisphere just barely floats in water.  If it has a diameter…

A: Given data The diameter of the bowl is given as d = 10 cm.   According to the condition of…

Q: 111. A cylindrical cistern, constructed below ground level, is 3.0 m in diameter and 2.0 m deep and…

A: Hey there, since you have posted multiple questions, we have answered the first one for you. You can…

Q: You have an aquarium which holds 2.05 gallons of water and you would like to place it on an antique…

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Q: An immersed body is always buoyed up by a force equal to the weight of the body. False True

A: Given that ,                 the body is immersed in a fluid or liquid

Q: Suppose the two glass plates in Fig are two microscope slides 10.0 cm long. At one end they are in…

A: Given: The length of glass plates = 10.0 cm. Thickness of paper filled in between both glass plates…

Q: A 10-cm-diameter, 60.0-cm-tall steel cylinder (ρsteel=7900kg/m3)(ρsteel=7900kg/m3) floats in…

A: Solution: Given: Ltotal = total length of steel cylinder = 60.0 cm d = diameter of steel cylinder =…

Q: The density of ice is less than that of water, which is rare for a solid. Why

A: Ice is less denser than water because in ice, the molecules arrange themselves in a rigid…

Q: Why do you suppose that airplane windows are smaller than bus windows?

A:

Q: The atmospheric pressure Patm= 1.013x10$ Pa) and h = 50 cm, then the Q (16): The manometer in the…

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Q: A helium-filled balloon, whose envelope has a mass of 0.25 kg, is tied to a 2.0-m-long, 0.050-kg…

A: Mass of the balloon,

Q: A cube of lead measures 3 cm on each edge and has a mass of 308 grams. Calculate for its specific…

A: Given: The side of the edge of the cube is 3 cm = 0.03 m.                                      {  1…

Q: A rifle bullet is cylindrical. Why?

A: Bullet needs some properties like minimum time of flight, minimum dispersion, maximum retained…

Q: A submerged horizontal flat plate is suspended in water by a string attached at the centroid of its…

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Q: A 1.00 kg gold cube hangs at the end of a 4.00 m long string. Pgold 19. 3 × 10³ kg/m³;Pmercury =…

A: Given Mass of the gold cube is m=1.0 kg Density of gold is ρgold=19.3×103 kg/m3 Density of Mercury…

Q: **53. One kilogram of glass (p = 2.60 × 10° kg/m³) is shaped into a hol- low spherical shell that…

A: To determine,Inner(R1) and the outer radii(R2) of the shell.given,mass of glass(m)=1 kgdensity of…

Q: A jet airplane in level flight has a mass of 8.64 104 kg, and the two wings have an estimated total…

A: In level flight ,the weight of the airplane is balanced by uplift force

Q: You are measuring an irregularly shaped object. The initial volume of water in your beaker is 350…

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Q: what is the angle of the surface of the fluid if the container moves 10m/s^2 horizontally a. 26.78…

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Q: 2. A block of wood 30cm square and 60cm long weighs 318 N. Will the block float with its sides…

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Q: 2. Water is poured into a U-tube as shown in the figure. The left arm of the tube has…

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Q: A plastic sphere floats in water with .7 50.0% of its volume submerged. This same sphere floats in…

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Q: 102.00 L Density (kg/L) 0.40 kg/L 0 Human Glass 2.00 kg Titanium Steel Copper 10 Wood Mass Volume A…

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Q: Centre of gravity of a 3D object is based on a. Mass b. Volume c. Perimeter d.…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: If you place a candle directly in front of a large speaker that is playing music, what do you expect…

A: Sound is a longitudinal wave,when sound wave release,its frequency also release from the speaker and…

Q: A bucket of water rotates with angular velocity ω. After some time a stationary state is created so…

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Q: Why there is an excess pressure on the concave side of a liquid surface?

A: If the surface of the liquid is concave, then the resultant force R due to surface tension on a…

Q: A uniform glass rod having a length L is placed in the smooth hemispherical bowl having a radius r.…

A: Let the reaction on the point B is given by NB. Let the radius of the bowl is given by r. Let the…

Q: A weight lifter holds 900N over his head ?why?

A: To determine  a weighs lifter holds 900N over his head

Q: Q3\ A Long glass rod of index 1.65 is ground at its left side and polished to a convex spherical…

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Q: alligators.An alligatorwaits for prey by floating withonly the top of its head exposed, sothat the…

A: The expression for the required height from the change in buoyant force equation is,

Q: Water stick to wall of glass tube but mercury doesnot, Why?

A: When liquid water is confined in a tube, its surface (meniscus) has a concave shape because water…

Q: What fraction of an iceberg is submerged? (pice = 917 kg/m°, psea = 1.03 ×103 kg/m3.) O 89% O 69%…

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Q: *49. A hollow cubical box is 0.30 m on an edge. This box is fl oating in alake with one-third of its…

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Q: As the summer intern for a company that manufactures nozzles for garden hoses, you are working on an…

A: Concept:- We will solve the problem by using the continuity equation for fluid motion. According to…

Q: A piece of lead has the shape of a hockey puck, with a diameter of 7.5 cm and a height of 2.3 cm .…

A: Consider the mass of the brass cylinder be m, the weight of the mercury displaced be wm, the weight…

Q: Q (11): An incompressible fluid flows inside a horizontal pipe of a radius R-2em with a velocity…

A: Radius = r = 2 cm = 0.02m Velocity = V = 4 m/s

Q: Pupils should in low- light situations . stay the same size constrict ( become smaller ) dilate…

A: Pupils have tendency to dilate (become bigger) in low- light situations.

Q: Why does the size of the cross sectional area of a mercury barometer not affect the height of the…

A: Given:The cross sectional area of mercury barometer not affect the height of enclosed mercury…

Q: A spherical aluminum ball of mass 1.26 kg contains an empty spherical cavity that is concentric…

A: