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)...
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...
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...
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...
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...
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...
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...