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Q: Discuss which will register the greater weight: an empty flattened balloon or the same balloon…

A: Weight is the product of mass of the object and the acceleration due to gravity.

Q: 2.46 Calculate the pressure increase that must be applied to wa- ter to reduce its volume by 2%.

A: Given data -                             reduction  in the volume = △VV = 2% , here (V = original…

Q: A jet plane is travelling at 965km/h in an air temperature of -38°C. Calculate the Mach number of…

A: Speed of the sound at any temperature t is  V = 331.5 + (0.6×t)  V = 331.5 + (0.6×(-38))  V = 331.5…

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: A vehicle when cumbing up a gradient, consumes petrol at the rate of 1 litre per 8 km while coming…

A: Given: consumption of petrol in climbing up = 1/8 li/km consumption of petrol while coming down =…

Q: DO ALL SYSTEMS IN NATURE EXIST IN EQUILIRIBUM

A: in this question we discuss about equilibrium.

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: How does scaling relate to the fact that the heartbeat of large creatures is generally slower than…

A: Small animals have a larger surface area to volume ratio than large animals. This is why heart rate…

Q: Question 6 Air is nearly 830 times Omore denser than water. less popular travels faster. O less…

A: We know that Density of air is (d1)= 1.2 g /L Or d1= 1.2× 10-³ kg/L And the density of water is…

Q: Rank the volume of air in the glass, from greatest to least, when it is held (a) near the surface…

A: Given:The volume of air in glass is varying.

Q: By comparing the surface area of a sphere with its volume and assuming that air resistance is…

A:

Q: Why do we say a blob of putty is inelastic?

A: A blob of putty does not return to its original shape when deformed. That is it does not retain its…

Q: The value of surface tension is more at O 50 oC O 80 oF O 103 oF O 300 oC O No correct answer

A: Surface tension is due to cohesive forces present on the boundary of a liquid .

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

A:

Q: Consider a balloon of mass m fl oating neutrally in theatmosphere, carrying a person/basket of mass…

A: Given data *A balloon of mass is m *A person/basket of mass is M *The given situation is M>m

Q: In the last experiment, when a sand bag and coffee filter were released separately from the same…

A: Resistive force of air slows downs the coffee filter more than the sand bag   When objects fall,…

Q: How do you think air lessens your speed rate when you do a locomotor movement, such as running? And,…

A: The question is regarding the effects of air resistance on moving bodies. A drag force is a force…

Q: Rank the volume of air in the glass, from greatest to least, when it is held a. near the surface as…

A:

Q: The value of surface tension is more at O 50 oC 80 OF 103 OF 300 oC O No correct answer

A: The value of surface tension is more at 80 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: Insects utilize surface tension for propulsion on the water surface by secreting a substance from…

A: The given statement is True. Insects such as Microvelia use such ability to propagate in the forward…

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

A: (a) Since the balloon is hovering at the same altitude, thus the buoyant force (FB) must be equal to…

Q: echamicud wws Cnvrted to intenl enen intual a Haw much me enery y r turels dewn Rom pont A t. when…

A:

Q: The photo shows physics instructor Marshall Ellenstein walking barefoot on broken glass bottles in…

A:

Q: Which is more elastic? O rubber string O steel string

A:

Q: It appears that some insects are standing *: above the surface of the water, they return because of…

A: It appears that some insect  are standing on surface of water.

Q: 3 cm ९ 4em : তনপ বন্টির কোন তল দ্বা় বেৰী ডাপ অনুদত হবে ? Sाনিতিক বিক্লেষণ কর। Do a mathmatieal…

A: Height of object: h = 3 cm = 0.03 m Breadth of object: b = 2cm = 0.02 m Length of object: l = 4 cm =…

Q: What does the concept of scaling have to do with the fact that living cells in a whale are about the…

A: The scaling doesn’t necessarily mean that the size of the living cells is also gets scaled up with…

Q: Discuss which will register the greater weight: an empty flattened balloon or the same balloon…

A: Balloon filled with air will have more weight and the balloon which is flattened will have less…

Q: mph to 50mph in 10 seconds. If the air of the lorry

A: 1 mile = 1.6 km 1 mph = 1.6×1000/3600 m/s

Q: Which change in phase results in particles that move slower? O Solid to gas O Solid to liquid O…

A: We know that when entropy of system is low, Particles will move slower. So when we compare entropy…

Q: 2.23 The dynamic viscosity of air at 15°C is 1.78 × 10 N s/m. Using Sutherland's equation, find the…

A: The Sutherland constant for air is given by,

Q: Choose the best answer to the following: When you squeeze an air-filled party balloon you increase…

A: Answer:   di,e Density

Q: You have plans to create a giant cube-shaped balloon for the hot air balloon race you entered over…

A:

Q: A stone dropped from a bridge reaches the water surface after 4 s. What is the height of the bridge?…

A:

Q: Which is heavier 50kgs sack of rice or 110lbs sack of rice?

A: Write the given values. m1=50 kgm2=110 lb

Q: If the wind velocity at a height of 2 m above ground is 5.0 kmph, its value at a height of 9 m above…

A: In the above mentioned question we are provided with the following details , z = 9 m/s z​​​​r = 2…

Q: herigaomts orfT B016 inu orl to doni ensupe 1 t What's More Time to Ponder! Direction. Reflect and…

A: We have to reflect and make an essay about "Pressure in Everyday life"

Q: Which of the following is the capacity of the pycnometer used in the Activity of Density and…

A: SOlution:

Q: What does it mean when an object is said to be elastic?

A: Required : What is meant by elastic object.

Q: the force responsible of stagnation of blood in upper body tissues is gravitational force

A: FALSE The given statement is False.