. You have plans to create a giant cube-shaped balloon for the hot air balloon race you entered over spring break. If you and the basket are 300 kg, and hot air is about 25% less dense than the atmosphere, how big must your balloon be to lift off the ground?

Q: Scientist found evidence that mars may once have had an ocean that is 0.500 km deep. The…

A: Given data: Depth of ocean (h) = 0.500 km                                = 500 m The acceleration…

Q: Q2 The truck dumps water on the ground such that it flows from the truck through a 100-mm-wide…

A: Given data: ZA=1.75 m Need to determine the friction force.

Q: A small ferryboat is 4.70 m wide and 5.70 m long. When a loaded truck pulls onto it, the boat sinks…

A: Given information Length of the boat a = 5.7 m Width of the boat b = 4.7 m After loading of the…

Q: Example: Water is flowing at 6.00 m/s through a cylindrical pipe with a radius of 7.00 cm. If the…

A: Given data :                   Initial speed of water , v1 = 6 m/s                   Radius of…

Q: Consider a doublefluid manometer attached to an air pipe shown in Fig. P2–58. If the specific…

A: Pressure above the red color 1-1 should be same in both left and right tubes.

Q: A rectangular box with an open top is floating on the surface of a swimming pool. During a rainstorm…

A: Since there's no information given about the thickness of the box, we can't really find its buoyant…

Q: 3. A large tank is kept full at a height of h = 4 m as shown in the figure. Take the water density…

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Q: 7. Two plates each having an area of 5 m^2 are 37 mm apart. The plate on top is fixed while the…

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Q: Scuba divers are admonished not to rise faster than their air bubbles when rising to the surface.…

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Q: water pipe narrows from a radius of (R1=5 cm) to a radius of (R2=2 cm. If the speed of the water in…

A: Flow rate in the car is constant=> Av=constant A=area v=velocity

Q: 8) Consider the system of cylindrical pipes shown in the following figure, where a flow of water is…

A: According to the continuity equation between the pipe 1 and 2 is,…

Q: Water flows through a circular nozzle, exits into the air as a jet, and strikes a plate. The force…

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Q: When analyzing the acceleration of gases as they flow through a nozzle, what would you choose as…

A: For calculating the acceleration of the gases, it is important to analyze the flow through the inlet…

Q: 5. The density and height of the block shown in Figure Q5 are 750 kg/m and 21 cm respectively. The…

A: Given data: The density of the block is ρb=750 kg/m3. The height of the block is H=21 cm. The…

Q: A merchant in Kathmandu sells you a solid-gold, 1.5-kg statue for a very reasonable price. When you…

A: The volume of the water displaced will be equal to the volume of the gold statue. The density of…

Q: A rock of density 2500kg/m^3 with volume 0.002m^3 falls from rest in a viscous medium. The rock is…

A:

Q: A typical military submarine can submerge to about 730 m before collapsing under the outside water…

A: Given  The submerged distance under the water is h = 730 m. The acceleration due to gravity in…

Q: 1. A gold with a mass of 20 kg is fully submerge on the sea water. If a rope is used to hoist the…

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

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

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Q: 7. Falling Objects: a. Who stated that "objects fall at a speed proportional to their weight and…

A: Given : (Note: A multiple kind of question is given. Answer for the first part is provided below.…

Q: 8. Three wooden blocks of different masses and sizes float in a container of water, as shown in the…

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Q: 13- The flow rate of blood through a 1.50 ✕ 10−6 m radius capillary is 3.80 ✕ 10−9 cm3/s.   (a)…

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Q: The figure shows a siphon, which is a device that It contains liquid and allows it to be emptied…

A: The heights of the column are: The surface of the water level in the container (point D) and the…

Q: A barge, 2 meter in width, 5 meter in length and 2-meter high will traverse the shorelines of…

A: The given information in the question are : Mass of barge = 2000 kg  Dimensions of barge, Length of…

Q: On a perfect fall day, you are hovering at a low altitude in a hot-air balloon, accelerated neither…

A: On a perfect fall day, you are  hovering at a low altitude in a hot air balloon. Total weight of the…

Q: standard

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Q: A recreational (open) hot air balloon (i.e., Pinside is approximately Poutside) has a volume of 2219…

A: The volume of hot air balloon when fully inflated is V = 2219 m3. Assume the total weight of the…

Q: A boat floating in fresh water displaces water weighing 35.6 kN. (a) What is the weight of the water…

A: Given:  weight of displaced fresh water = 35.6 kN              density of salt water, d = 1.10 × 103…

Q: 2. A pipe with a radius of 2 cm is connected to another pipe with a radius of1 cm. If the velocity…

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Q: Problem 7: A cubical block of wood, 8 cm on each side, floats at the interface between oil and water…

A: a) let density of block is d  by figure  Mg = B1 + B2  d×83×g = [790×82×(8-1.5)×g] + [1000×82×1.5×g]…

Q: (III) A fire hose exerts a force on the person holding it. This is because the water accelerates as…

A: The data given are as follows: Diameter of the hose, d1 = 7 cm = 0.07 m  Diameter of the nozzle, d2…

Q: 1) A statue of 125-kg in air is submerged in the ocean for Scuba divers in an underwater sanctuary.…

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Q: Please help with this question

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Q: About 30% of the body of a person floating in the Dead Sea will be above the water line. Assuming…

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Q: 9. A boat floating in fresh water displaces water weighing 35.6 kN. (a) What Is the weight of the…

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Q: Scientist found evidence that mars may once have had an ocean that is 0.500 km deep. The…

A: The pressure due to the fluid is given by  P= h d g  where, h is the depth, d is the density of…

Q: V2 = 0 h y2 - Yi Yo Figure 5 i. Does the height of the chair I affect the value of fluid velocity…

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Q: hat is the volume of the person that is above water? Express answer using two significant figures

A: Given  Mass = m= 75 kg  Volume=V = 0.086 m³ Weigjt = 75*9.8 =735 N  Density of water=p = 1000 kg/m³…

Q: Scientist found evidence that mars may once have had an ocean that is 0.500 km deep. The…

A: Write the expression for the fluid pressure at the bottom of the ocean. Here, ρ represents the…

Q: A certain body weighs 12 N in air and 10 N when immersed in water, Find its total volume and its…

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Q: Water flows through a circular nozzle, exits into the air as a jet, and strikes a plate. The force…

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Q: what will be the immersion height of this buoy

A: Given data: The volume of fluid displaced is: Vd The weight of buoy is: Wb = 3630 N The weight of…

Q: 7. A supertanker filled with oil has a total mass of 6.1 x 1018 kg. If the dimensions of the ship…

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Q: Physics Question19 There is the weight of water and the atmosphere on the stone located at the…

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Q: Two adult polar bears, each of mass 440. kg are adrift on an ice floe in the seawaters of the Arctic…

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Density of Solids

The density of a substance refers to how much matter is present in a given amount of space. It is expressed as the ratio of the mass of the substance to its volume.