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Lana71 [14]
4 years ago
7

Estimate the theoretical fracture strength of a brittle material if it is known that fracture occurs by the propagation of an el

liptically shaped surface crack of length 0.47 mm and that has a tip radius of curvature of 0.001 mm when a stress of 1050 mpa is applied.

Physics
1 answer:
julia-pushkina [17]4 years ago
4 0
The solution as per the attached photo.

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Dave throws a 10 kg bowling ball straight up in the air. At the very tippy-top of its path, what is it's momentum?
svetoff [14.1K]

Answer:Zero

Explanation:

Given

mass of ball m=10\ kg

If the ball is thrown upward then at maximum point velocity of ball is zero because ball is no longer able to move upward

Momentum(P) of a particle is given by

P=mass\times velocity

P=10\times 0

P=0

Therefore at the highest point momentum is zero .

8 0
4 years ago
Which of the following elements would most likely become a positive ion when forming a chemical bond?
rusak2 [61]
Here, Your Options are absent, but the elements that would most likely become a positive ion will be:

hydrogen, sodium, potassium, lithium, cesium etc.

Hope this helps!
4 0
3 years ago
Suppose you walk 21.5 m straight east and then 12.5 m straight north. How far are you from your starting point (in m)
stira [4]

Answer:

24.9 m

Explanation:

A triangle is a polygon with three sides and three angles. There are different types of triangles such as the equilateral triangle, isosceles triangle, scalene triangle, right angled triangle.

You walk 21.5 m straight east and then 12.5 m straight north. This forms a right angled triangle with a horizontal distance of 21.5 m, a vertical distance of 12.5 m and the hypotenuse is the distance between the ending and starting point. Let x represent the distance between the ending and starting point. Therefore using Pythagoras theorem:

x² = 21.5² + 12.5²

x² = 462.25 + 156.25

x² = 618.5

Taking square root of both sides:

√x² = √618.5

x = √618.5

x = 24.9 m = distance between the ending and starting point.

4 0
3 years ago
A ride at an amusement park attaches people to a bungee cord, pulls them
UkoKoshka [18]

Answer:

asdccccccccccf give me my points

Explanation:

7 0
3 years ago
Which starting material is the limiting reagent in this procedure? which reagent is used in excess? how great is the molar exces
alexandr1967 [171]

The limiting reagent in this procedure is the substance that is completely used in the reaction. The substance which is not completely used is called excess.

The beginning cloth in a chemical reaction is known as the reactant. each chemical response could have one or more reactants.

In a chemical response limiting reagent is the reactant this is fed on first and prevents any similar reaction from happening. the quantity of product shaped during the response is decided by means of the limiting reagent. as an example, allow us to recall the response of solution and chlorine

Materials used during the manufacture of the lively substance (e.g., tradition media, growth factors, and so on) and that are not meant to form a part of the active substance shall be taken into consideration as raw substances. cloth forming a critical part of the lively materials element shall be considered as the beginning substance.

Learn more about limiting reagents here:-brainly.com/question/26905271

#SPJ4

7 0
2 years ago
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