Recent content by O0ZeRo00

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    Calculate Earth's Gravitational Field at the Moon

    The Moon's mass is 7.34x10^22 kg, and it is 3.8x10^8 m away from Earth. Earth's mass is 5.97x10^24 kg. (a) Calculate the gravitational force of attraction between Earth and the Moon. I already did that. It's 2.01e+20. (b) Find Earth's gravitational field at the Moon. This is the part I'm...
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    Solving Vector Problems: Finding an Airplane's Ground Speed and Direction

    Ahh! Nevermind. Typo. Mine actually was 261.79. My bad. Ha.
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    Solving Vector Problems: Finding an Airplane's Ground Speed and Direction

    Hmm... That's odd because mine comes out right too.
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    Solving Vector Problems: Finding an Airplane's Ground Speed and Direction

    Well, I know it's correct because I submit my answers onto a website that checks to see if it's right or not.
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    Solving Vector Problems: Finding an Airplane's Ground Speed and Direction

    Okay. I've solved it. It was 271.79 Km/h at 8.54 degrees east of north. Thanks for your help. :]
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    Solving Vector Problems: Finding an Airplane's Ground Speed and Direction

    Yes, I have. Which is where I got the idea for the Law of Cosines.
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    Solving Vector Problems: Finding an Airplane's Ground Speed and Direction

    An airplane flies due north at 220 km/h relative to the air. There is a wind blowing at 55 km/h to the northeast relative to the ground. What are the plane's speed and direction relative to the ground? I started by using the law of Cosines. a^2 = b^2 + c^2 - 2bccos(a) That's the only thing...
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    How Do You Calculate the Initial Velocity of a Ball Hit at a 40° Angle?

    Yeah, the book has examples but, not for the problems like that one. I feel like the question doesn't give me enough information.
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    How Do You Calculate the Initial Velocity of a Ball Hit at a 40° Angle?

    A pitched ball is hit by a batter at a 40° angle and just clears the outfield fence, 96 m away. If the fence is at the same height as the pitch, find the velocity of the ball when it left the bat. Ignore air resistance. Velocity at 40°? Honestly I don't know how to do this. I have a whole...