Q: A person with a muscle cramp in shallow water should try to relax the muscle by stopping the…
A: Muscle cramps are common among swimmers. To relieve muscle cramp, one should can stop the activity…
Q: 50. The work done in stretching an elastic string of natural length 5 m and modulus of elasticity…
A: Work done is the difference of elastic potential energy stored in form of elastic potential energy…
Q: Why is a high mountain composed mostly of lead an impossibility on Earth?
A:
Q: which is more tiring, running or walking in the stairs? explain
A: Given : Which is more tiring running or walking in the stairs ?
Q: Why a rifle barrel rifled?
A: Answer Rifling consists of spiral grooves cut into the inside of a barrel of a gun. It is a key part…
Q: State Hooke’s Law of Elasticity a. as it is applied to an elongated body like a metal rod b. as it…
A:
Q: where will you weigh more? at sea level or on a plane, over water or an ore deposit, or a salt…
A: At sea level, you will weight more than other mentioned places, because gravity is stronger at the…
Q: A spring has a length of 20 cm. After suspending a certain weight, its length increases to 30 cm.…
A:
Q: What is more elastic: water or air?
A:
Q: When the branch of a tree is shaken , fruit falls. Why?
A: Tree and the hanging fruit are in the state of rest initially. When the branch is shaken vigorously,…
Q: Write copper, steel, rubber and glass in the increasing order of their elasticity.
A: elasticity of an object or body is defined as the ability to restore its original form after it is…
Q: what is linear elasticity?
A: Linear elasticity can be defined as a mathematical model that describes how solid objects undergo…
Q: What is the role of elasticity in everyday life? Give two examples to illustrate.
A: The concept of elasticity is mainly used to make manmade structures.The ropes used in cranes to lift…
Q: Which is the strongest? A) Top B) Middle C) Bottom D) They are all the same
A: From the diagram, it is clear that number of electric field lines at top and bottom charge are same.…
Q: The diagram below shows a person standing on a plank that pivots on a log. The person intends to…
A:
Q: Why does your body get more rest when you’re lying down than when you’re sitting? Is blood pressure…
A: When lying down the weight of the body is spread on more surface area.
Q: Why is a slight blow on a cork of bottle fully filled with a liquid sufficient to break the bottle?
A: Answer :Increase in pressure increases the velocity of molecules
Q: A glass Dropped from the floor is more likely to break if the floor is concrete than if it is wood?…
A: To answer the question, we will use the concept of momentum and force.
Q: Which is more elastic? O rubber string O steel string
A:
Q: Why does the suspended spring stretch more at the top than at the bottom?
A: The top part of the spring supports all of the spring’s weight.
Q: when a bouncy ball strikes a surface, does the surface experience inelastic deformation, or does the…
A: Inelastic deformation is the change in shape due to inelastic collision.
Q: What is the advantage to a gymnast of beung short in stature?
A: The centre of gravity of a person having short stature is closer to the ground than that of a taller…
Q: Why do gymnasts use floor mats that are very thick?
A: The gymnasts use floor mats that are very thick mats, since the thick mat having good amount of…
Q: How much tension is in the spring?
A: Explanation and answers of each part is in next step.
Q: List some factors that influence whether a rock will deform: 1. in an elastic manner, 2. in a…
A: The rock will deform into elastic manner when, the rock returns to its original shape when the…
Q: The figure shows the forces exerted by wind on each floor level of a six-story steel frame building.…
A: Distance between each storey is d = 4 m . Let F1 = 8 kN , F2 = 8 kN , F3 = 8 kN , F4 = 9 kN , F5 =…
Q: Why were so many vertical columns needed to support the roofs of stone buildings?
A: Stones were the only raw material for construction in ancient Egypt and Greece. But as stones are…
Q: The elasticity of a good is E=0.2. by (a) A 3% price increase will cause the demand to -Select--- %.…
A:
Q: Rain drops acquire spherical shape due to A) viscosity B) surface tension C) friction D)…
A: The tendency of a liquid, that makes it to shrink into the minimum surface area is known as Surface…
Q: What is the advantage to a gymnast of being short in stature?
A:
Q: Explain elasticity using intermolecular force.
A: Step 1Intermolecular force is the sum of all the forces between two neighboring atoms.Elasticity is…
Q: How do jogging on soft ground and wearing padded shoes reduce the pressures to which the feet and…
A: jogging on a soft ground with padded shoes
Q: When throwing a football you are always instructed to follow-through. What is the advantage of…
A: The football has its unique shape. It has special instructions for holding for better grip, throwing…
Q: calculate the coefficient of elasticity for the ball.
A: Given, Speed of ball just before striking the floor vi = 4.5 m/s rebound speed of the ball vf = 2.5…
Q: Both a gorilla and a mouse mistakenly run off the edge of the same high cliff. How does scaling aid…
A: The mouse has a large surface area per unit body weight. Hence while falling, the mouse faces more…
Q: discuss the concept of elasticity
A: Given that, Rhe concept of elasticity.
Q: Why are flaps used at the leading and trailing edges of the wings of large aircraft during takeoff…
A:
Q: Why are metal-spiked shoes not a good idea for golfers on a stormy day?
A: Lightning has a tendency to hit tallest object easily, in the case of golf field the tree are less…
Q: Which has more skin, an elephant or a mouse? Which has more skin per unit of body weight, an…
A: Out of the Elephant and the mouse, Elephant has more skin as it is larger in size.
Q: 2. A glass dropped on the floor is more likely to break if the floor is concrete than if it is wood?…
A: The concrete surface stops the glass almost immediately , the deceleration is much faster in the…
Q: What does it mean when an object is said to be elastic?
A: Required : What is meant by elastic object.
Which is more elastic steel or rubber? Why?
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