Invert a water-filled pop bottle or a small-necked jar. Notice that the water doesn’t simply fall out but gurgles out of the container. Air pressure won’t let it escape until some air has pushed its way up inside the bottle to occupy the space above the liquid. How would an inverted, water-filled bottle empty on the Moon?

Q: An elevator has a height of 8 feet [ft], and a square floor area of 6 feet [ft] wide by 6 feet [ft]…

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Q: A heavy stone rests on the bottom of the swimming pool. The normal force of the bottom of the pool…

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Q: The water was poured from the top of the vertical tube, what happened to the barrel below when it…

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Q: Why a boat which barely floats in the ocean while a hole in it is sealed, sinks when pulled up in…

A: Answer The density of sea water is higher than the density of pure water. Because the dissolved salt…

Q: Consider a 116 L tank filled with ethanol. When empty, the tank weighs 30 N. At capacity, the tank…

A: Given  volume of the tank filled with ethanol is V = 116 L = 0.116 m3 weight of the tank…

Q: 4.0 m. طوافه 4.0 m شجر السرو The raft is made of solid square Pinewood (density= 550 kg/m).…

A: From the dimensions of the raft , we get its volume , Vr = 4 x 4 x 0.3 Vr = 4.8 m3 Density of raft ,…

Q: A spring is attached to the bottom of an empty swimming pool, with the axis of the spring oriented…

A: Given: mass of block of wood=8.3 kg density of block=670 kg/m3

Q: Why A drop of liquid under no external forces is always spherical in shape

A: Clothes have narrow pores that behave like capillaries, now we know that the rise of liquid in a…

Q: It so happens that an actual increase in weight is found even in the deepest mine shafts. What does…

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Q: The pressure exerted against the ground by an elephant’s weight distributed evenly over its four…

A: A person would be crushed beneath the foot of an elephant, while he is unharmed by the pressure of…

Q: What is the buoyant force acting on a helium-filled party balloon in the air if the volume of the…

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Q: A venituri Tube has, a radius of cm in its narrower portion and 2 cm in its wider sections The velo…

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Q: There is a story about Pascal’s assistant climbing a ladder and pouring a small container of water…

A: Answer:- The water pressure at a certain depth is, Water pressure = (weight density).(depth) Now,…

Q: toy robot floats in a swimming pool. Which volume the bouyant force exerted on the toy robot depends…

A: a toy robot floats in a swimming pool. Which volume the bouyant force exerted on the toy robot…

Q: Vadim bought his wife a “gold” bracelet from a guy on the street for $100. If he drops it in a…

A: The mass of the jewellery is m=0.5 kg The jewellery is dropped in the beaker of water. The volume of…

Q: The windows of an office building are 4.26 m by 5.26 m. On a stormy day, air is blowing at 28.0 mps…

A: Given:-  The windows of an office building are 4.26 m by 5.26 m.  air speed = 28 m/s   a window on…

Q: Do things get lighter in water?

A: Objects in water experience an upward force known as the Buoyancy force. This force is given by Fb =…

Q: How does the weight of mercury in a barometer compare with the weight of an equal cross section of…

A: Barometer gets balanced when pressure exerted due to liquid’s weight equals the atmospheric…

Q: How does the volume of a completely submerged object compare with the volume of water displaced?

A: Step 1 A submerged object is any object that sinks and displaces some fluid.

Q: When a body is moved from sea level to the top of a mountain, what changes occur in the body? Is it…

A: The mass of an object is a measure of the object's inertial property or the amount of matter it…

Q: A small, dry paper clip can rest on the surface of still water. Why can’t a heavier paper clip do…

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Q: A gardener wants to fill a pail using a hose that is angled 20 with respect to horizontal and…

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Q: A piece of iron sinks in water , but a ship made of iron floats in water. Why?

A: This phenomenon can be understand using Archimedes’ Principle according to which when a body…

Q: A large stone is resting on the bottom of the swimming pool. The normal force of the bottom of the…

A: Due to the buoyant force, density is calculated by the measuring of weight and apparent  weight,…

Q: Archimedes observed that a gold and silver crown displaced more water than a lump of pure go even…

A: Water displaced from a container depends on the density of the material submersed in the container.…

Q: cylindrical container has a diameter d-0.1 m and height Z-05 m It is open at one end.. It is ed with…

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Q: In hot-air ballooning, a large balloon is filled with air heated by a gas burner at the bottom. Why…

A: Introduction: A hot air balloon is a type of aircraft which used hot air to levitate on the air.

Q: Concrete dams are built to be much thicker at the bottom than at the top. Which of the following is…

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Q: When the specific gravity is greater than a whole number, the object will float.   true or false

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Q: If you release a Ping-Pong ball beneath the surface of water, it will rise to the surface. Would it…

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Q: Choose among the choices the one that does not apply the Pascal's principle. a. brakes of a bicycle…

A: The answer is below

Q: The ship was able to float in the water because its weight was same as the weight of water it…

A: Any body  will always float in liquid when the weight of object is equal to weight of displaced…

Q: How does the pressure at the bottom of a 76-cm column of mercury in a barometer compare with air…

A: Barometer is a device to measure the atmospheric pressure. A barometer measures the pressure of the…

Q: Concrete dams are built to be much thicker at the bottom than at the top. Which of the following is…

A: Apply  concept of Pressure variation with height