A shell is fired from a cannon with intial a velocity of 100 m/s at an angle 30∘ with the horizontal towards a high building that Away 250 m from point of projection, and a person standing on the roof of the building sees this shell and throws himself after 1 second from the launch of the shell, and falls free and the shell hits him during its fall. What is height of the building?

Q: For the machine element shown, locate the x coordinate of the center of gravity.

A: Consider the diagram of machine element given with notation of all components,

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A:

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A:

Q: A diamond-shaped body, of characteristic length 9 in, hasthe following measured drag forces when pla...

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Q: calculate equivalent resistance?

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A:

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A: Draw the FBD for a better understanding of the given problem.

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Q: The gage pressure of the air in the tank shown in Fig. is measured to be 80 kPa. Determine the diffe...

A:

Q: Q2) The rectangular plate is made up 2 ft squares as shown. A 80 N is applied at point A. calculate ...

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Q: |20 kN 15 kN/m A 2 m 4 m B.

A: The reactions on the supports of beam can be drawn as follows,

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Q: Water flows steadily in a 1.75-m-wide rectangular channel at a rate of 0.85 m3/s. If the flow depth ...

A:

Q: A satellite describes an elliptic orbit of minimum altitude 606 km above the surface of the earth. T...

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Q: A 6-kg uniform cylinder can roll without sliding on a horizontal surface and is attached by a pin at...

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A: Given data  

Q: A boat moves through water (T = 40°F), at 18.0 mi/h. A flat portion of the boat hull is 3.3 ft long,...

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A: Given data

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Q: In ITS-90, which temperature scale is considered in four ranges?

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A:

Q: A slender 10-kg bar AB with a length of l = 0.6 m is connected to two collars of negligible weight. ...

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A:

Q: Knowing that dC = 3 m, determine (a) the distances dB and dD, (b) the reaction at E.

A: Draw the free-body diagram of the system.

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Q: Calculate the lift and drag coefficiens for a flat plate at a 5◦ angle of attack in a Mach 3 flow.

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Q: I1-13. Draw the shear and moment diagrams for the beam. м, L/2-

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Q: Draw complete free-body diagrams for the bodies specified in the following problems. Neglect the wei...

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Q: DESCRIBE THE IDEAL-GAS EQUATION OF STATE.

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.