4. A shell leaves a mortar (a short smoothbore gun for firing shells technically called bombs at high angles) with a muzzle velocity of 500 ft/s directed upward at 60°with the horizontal. Determine the position of the shell and its resultant velocity 20 sec after firing. How high will it rise?

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Q: 5. A 210-N mass is suspended from a horizontal beam by two cables that make angles of 29° and 53°…

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Q: Complete the table.

A: 1 atm = 1.01325 × 105  Pa1 atm = 760 mm of Hg1 atm = 14.6959 pounds per square inch1 atm = 760 torr

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A: Given: The mass of the object attached to the spring is m = 216 g The mass stretches the spring is y…

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Q: ⇒y: 11 ⇒y= 11 m² (m₁ + m₂)² m₂v, 1 m₁ Y = m₂ m₂ · v²³. (m₂ + m₂)² − 2¹¹² Q(m₁ + m₂) m₁ m₁v₁ 20…

A:

Q: 4) Borus: Suppose one plate of a parallel-plate capacitor is tilted so it makes a small angle 0 with…

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A:

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.