Would you be willing to sip hot coffee out of an open cup while riding in a car traveling a constant speed in a straight line on a smooth road? What about if the driver slammed on the brakes? Would you be willing to sip hot coffee while riding in a car traveling around a sharj curve?

Q: A delivery truck with birds resting on its floor will be heavier than a vehicle with the same birds…

A: Given: A delivery truck with birds resting on its floor will be heavier than a vehicle with the same…

Q: The terminal velocity of a person falling in air depends upon the weight and the area of the person…

A:

Q: If a rock and a feather are dropped in a 98-meter-long tube in which there is a vacuum, which one…

A: Given statement: If a rock and a feather are dropped in a 98-meter-long tube in which there is a…

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: What happens to the buoyant force acting on the airship as it rises in the air? CHoices: decreases…

A: Given data: Airship rises in the air Required: Effect on the buoyant force acting on the airship

Q: Will an empty balloon have precisely the same apparent weight on a scale as a balloon filled with…

A: Empty balloon has precisely the same apparent weight on a scale as a balloon filled with air…

Q: An object is taken out of a 65 F room and placed outside where the temperature is 35 F room. Five…

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Q: A balloon filled with hydrogen will   A) continue going upwards uninterrupted B) reach a particular…

A: In the atmosphere, the pressure decreases with increases in the height. So, the weight of the…

Q: A person who is 30 m under water will experience more pressure than a person 40 m underwater more…

A: In fluids pressure increases with depth. If depth increases pressure also increases

Q: An astronaut is doing a repair work on a space station. Suddenly, he loses his grip and finds…

A: In space , the gravitational force have less effect on a person also due to vacuum , the person will…

Q: Could you use a straw to sip a drink on the Moon?

A: In this case, initially we have to suck the air from the straw. It reduce the pressure inside the…

Q: Q5: A hot-air balloon has a volume of 1100 m³. The density of air at 20 °C is 1.205 kg/m³. The…

A: Volume of Hot air balloon = 1100 m^3 Density of air at 20° C ( ρ ) =1.205 kg/m^3 Density of Hot air…

Q: A swimmer swims 10 complete laps in a pool . It takes 15secs to complete the swim . The pool is 30m…

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Q: A large weather balloon of mass 226.0 kg is filled with helium gas until its volume is 325.0 m3.…

A:

Q: Which of the following is the name of the velocity of a falling sphere in liquid: Select one: O a.…

A: The viscous drag force that experienced by sphere of radius r moving with a velocity v is given by,…

Q: If a glass of water is on a table with a piece of paper under it, it is relatively easy to pull the…

A: to explain : If a glass of water is on a table with a piece of paper under it, it is relatively easy…

Q: How is the smoke drawn up a chimney affected when a windis blowing outside?(a) Smoke rises more…

A: The pressure inside the chimney is more than the pressure outside which reduces the speed of the…

Q: Which has a longer mean free path, liquid water or water vapor in the air?

A: Mean free path is the average distance traveled by the molecules between subsequent collisions.…

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: Salt water is denser than fresh water. A ship floats in both fresh water and salt water. Compared to…

A: Given: The density of salt water is more than the density of fresh water. The ship floats over salt…

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: A wooden spherical ball with specific gravity of 0.45 and a diameter of 400mm is dropped at a height…

A: ball with specific gravity of 0.45diameter of 400mmheight of 5.2m density of wood=450 kg/m3

Q: 1.Rank the total volume of the three boxes from largest to smallest. 2.Rank the volume of water…

A: Given:

Q: An aluminum piston of 2.5 kg is in the standard gravitational field, and a force of 25 N is applied…

A:

Q: An object will float if O A) it's small enough B) it's big enough C) it is denser than water O D)…

A: Archimedes Principle:- When a body or object is partially or fully dipped into a fluid at rest, the…

Q: High cholesterol in the blood can cause fatty deposits called plaques to form on the walls of blood…

A: We have two circular cross sections namely a unblocked area and a blocked whose sizes are related by…

Q: A Boeing 747-8I aircraft has a mass of 447,700 kg. This includes cargo. The combined area of both…

A: Since the pressure difference lifts the plane. Thus, the pressure difference must have to create a…

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

A:

Q: A wooden stick 4m long is floating on the surface of a liquid. The surface tension of the liquid is…

A: The force on one side of the stick is given by,

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: You were told not to stand so close to a rapidly moving train because you might get sucked under it.…

A: Given We were told not to stand so close to a rapidly moving train because you might get sucked…

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: A cargo boat has a weight of 2000 N and a volume of 30 m3. Determine the mass of cargo the boat can…

A:

Q: A spherical weather balloon is filled with hydrogen until its radius is 4.10 m. Its total mass…

A:

Q: An observation balloon has a volume of 300 m² and is filled with hydrogen. The basket and passengers…

A: Following forces are acting on the ballon-basket system: 1) Force due to acceleration F(upward…

Q: A rock is suspended from the lower end of a light string. When the rock is totally immersed in…

A: let the weight of the rock= W density of water= 1 g/cc density of ethanol= 0.8 g/cc let the volume…

Q: When an electric bulb breaks , there is an explosive sound. That is due to   A) the chemical…

A: option C) is correct  That is due to  the air outside rushing in to fill the vacuum inside the bulb…

Q: amount of matter contained in a body * O Composition O Mass O Weight O gravity force

A: Matter is defined as anything that has mass and occupies space. On the basis of physical properties…