Recent content by seizureboi

  1. S

    Finding resultant of three vectors with components

    Homework Statement I have three vectors and I need to find the resultant of the three vectors and direction. Homework Equations *All angles are with the horizontal Vector 1 = 18 at an angle of 40 degrees (First Quadrant) Vector 2 = 10 at an angle of 72 degrees (Second Quandrant)...
  2. S

    Apparent weight of astronaut in accelerating lunar elevator

    Homework Statement The effect of gravity is approximately 1/6 of what it is on Earth. If one were to build an elevator on the moon, (a) what would be the apparent weight of a 65kg astronaut when the elevator accelerates upward at 5 m/s2? (b) What is the acceleration of the elevator if the...
  3. S

    Finding coefficient of friction for block pulled up an incline at constant speed

    Cool, because I did try it that way and i got μ = 1.16 and I thought I was wrong so I concluded with adding a random sinӨ lol.
  4. S

    Finding coefficient of friction for block pulled up an incline at constant speed

    Homework Statement A 3kg block is pulled by a rope up a 37 degree incline at constant speed. If the tension in the rope is 45N and the rope is parallel to the incline, calculate the coefficient of kinetic friction between the block and the incline. Homework Equations a = acceleration...
  5. S

    How Do Newton's Laws Apply to Pushing a Lawn Mower?

    Homework Statement A person pushes a 14.0-kg lawn mower at constant speed with a force of F= 88.0N directed along the handle, which is set at an angle of 45 degrees to the horizontal. (a) Draw the free-body diagram showing all forces acting on the mower. Calculate (b) the horizontal friction...
  6. S

    Finding the mass of our Galaxy and the number of stars in it.

    Turns out I am right. What I did was first convert 200,000,000 years to seconds which gave me 6.3072x10^15 seconds/revolution around the center of the galaxy. Then I plugged the given items into the formula (4pi^2r^3)/(GxT^2), where "r" stands for radius (2.85x10^20), "G" standing for the...
  7. S

    Finding the mass of our Galaxy and the number of stars in it.

    Homework Statement The sun rotates around the center of the Milky Way Galaxy at a distance of about 30,000 light-years from the center (1 light year=9.5x10^15 meters). If it takes about 200 million years to make one rotation, estimate the mass of our Galaxy. Assume that the mass distribution...
  8. S

    Finding the mass of our Galaxy and the amount of stars in our Galaxy

    Homework Statement The sun rotates around the center of the Milky Way Galaxy at a distance of about 30,000 light-years from the center (1 light year=9.5x10^15 meters). If it takes about 200 million years to make one rotation, estimate the mass of our Galaxy. Assume that the mass distribution...