# Explain why an aluminum ball and a steel ball

Explain why an aluminum ball and a steel ball of similar size and shape, dropped from the same height, reach the ground at the same time. Answer Because, due to the fact that the two spheres having the same drag force because they have the same size and

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• Steel vs. Aluminum Ball Mounts

Oct 25, 2018 The GTW range for most aluminum ball mounts is between 8,000 and 21,000 lbs., so if you need a ball mount that can handle more weight, steel is the better option. Aluminum is also more expensive, so if you only tow occasionally, you might not want to spring for an aluminum mount. Shop Aluminum Ball Mounts. Steel Ball Mounts

• Bal-tec - Ball Material Selection

See our article, Stainless Steel Balls, Type 440C Hardened for more information. Aluminum Balls. 1100 series aluminum is commercially pure aluminum. It is a very light weight material that is a silvery white color, one of the natural base elements, and very ductile. Balls made of 1100 series aluminum are often used as closures

• Explain why an aluminum ball and a steel ball of

Explain why an aluminum ball and a steel ball of similar size and shape, dropped from the same height, reach the ground at the same time. Question: Explain why an aluminum ball and a steel ball of similar size and shape, dropped from the same height, reach the ground at the same time

• Buoyant Science: How Metal "Boats" Float - Scientific American

Apr 12, 2012 When the aluminum ball had a diameter of 6.0 cm, the ball should have floated well because it had a density lower than that of water due to the air

• Tutorial of Hertzian Contact Stress Analysis

Appendix 1 shows an example of a Hertzian stress analysis of a micrometer ball pushing against an aluminum plate. Here the aluminum plate being R2 and having no radius was set to infinity. The depth of maximum shear stress was calculated only .48a = 0.06mm below the surface. The calculated stresses far exceed anything 6061 can withstand

• 7. Kinetic Energy and Work Kinetic Energy

a bowling ball and a ping pong ball have the same velocity, the bowling ball has much larger kinetic energy. • Kinetic energy is always positive. • unit : Joule (J) = kg ⋅m 2 /s2 Example: If we drop a 3-kg ball from a height of h = 10 m, the velocity when the ball hits the ground is given by:

• Steel ball floating due to surface tension? | Physics Forums

Feb 21, 2010 A steel ball can float on water due to the surface tension effect. a) Determine the maximum diameter of a steel ball that would float on water at 20 degrees. b) What would be the maximum diameter for an aluminium ball. Assume the densities of steel and aluminium to be 7800 kg/m^3 amd 2700 kg/m^3 respectively

• Force and Laws of Motion Class 9 Extra Questions Science

Oct 02, 2019 Steel has the highest inertia. As the mass is a measure of inertia, the ball of same shape and size, having more mass than other balls will have highest inertia. Since steel has greatest density and greatest mass, therefore, it has highest inertia. Question 8. Why does a cricket player moves his hand backward while catching the ball? Answer:

• Do falling objects drop at the same rate (for instance a

The argument goes as follows: Assume we have a 10kg ball and a 1kg ball. Let us assume the 10kg ball falls faster than the 1kg ball, since it is heavier. Now, lets tie the two balls together. What will happen then? Will the combined object fall slower, since the 1kg ball will hold back the 10kg ball?

• Physics Flashcards | Quizlet

A ball on a string moves in a vertical circle as in Figure Q6.7. When the ball is at its lowest point, is the tension in the string greater than, less than, or equal to the ball's weight? Explain. (You may want to include a free-body diagram as part of your explanation.)

• Archimedes’ Principle | Physics

The space it occupied is filled by fluid having a weight w fl.This weight is supported by the surrounding fluid, and so the buoyant force must equal w fl, the weight of the fluid displaced by the object.It is a tribute to the genius of the Greek mathematician and inventor Archimedes (ca. 287–212 B.C.) that he stated this principle long before concepts of force were well established

• What goes around: 6 mid-sized ball heads put to the test

Apr 07, 2015 A stainless steel pin is threaded through the ball and case, acting as an axle for the ball to rotate on a single axis, while the panning base provides a second axis of movement. While large gimbal heads include armatures to precisely balance a long lens and heavy camera, the KPS design is closer to providing a pan/tilt head whenever needed

• A Guide to Applications for Stainless Steel Ball Valves

Feb 21, 2018 Stainless steel ball valves are used in just about every brewery. Most commonly located on the kettle, stainless ball valves allow the user to control liquid flow during transfers. The reason stainless steel is necessary is it comes in direct contact with wort, the liquid extracted during the mashing process when brewing beer or whisky

• Mastering Physics Solutions Chapter 16 Temperature and

Jun 02, 2018 Explain whether the temperature of the system be increased or decreased in order for the aluminum balito fit through the hole of the brass piate This can be explained basing on the concept of coefficient of thermal expansion Given that the diameter of the hole is slightly smaller than the diameter of the ball The aluminum ball and the hole of