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An airplane has a velocity relative to the air of 194 m/s in a westerly direction. If the wind has a speed relative to the ground of 56 m/s directed to the north, what is the speed of the plane relative to the ground?
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Need help answering this question The ancient Egyptians used simple machines to build the pyramids. Discuss how you might use one or more of the simple machines to move the massive stone blocks up the growing pyramid, an ...
In an attempt to skip a rock off the surface of a lake, you throw the rock from a height h=1.67 m above the lake surface with an initial speed of v0 = 6.85 m/s at an angle of θ=12.3° below the horizontal. How long until ...
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Question: An object is placed 30 cm to the left of a converging lens that has a focal length of 15cm. Describe what the resulting image look like (i.e. image distance, magnification, upright or inverted images, real or v ...
Question: A particle moving along the y-axis has the potential energy U = 4y^3J, where y is in m. A) Graph the potential energy from y=0m to y=2m. B) What is the y-component of the force on the particle at y=0m? C) What ...
Question: The potential energy U of an object of mass m that is separated by a distance R from an object of mass M is given by U = -GMm/R A. What is the kinetic energy K of the satellite? Express your answer in terms of ...
Question: Which statements about potential energy are correct? Select all that apply. a) The potential energy of a pair of interacting charged objects increases as the distance between them increases. b) Potential energy ...
One cubic meter (1.00m^3) of concrete has a mass of 2.30E+3kg, and 1.00m^3 of copper has a mass of 8.92E+3kg. Find the radius of an concrete sphere whose mass is the same as that of an copper sphere of radius 1.28cm?
Question: A roller coaster moves 200 ft horizontally, then rises 135 ft at an angle of 30.0° above the horizontal. Next, it travels 135 ft at an angle of 40.0° below the horizontal. Use graphical techniques to find the r ...
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