Recent content by Flinze

Homework Statement The 500-mg balance wheel of a certain clock is made up of a thin metal ring of radius 16 mm connected by spokes of negligible mass to a fine suspension fiber as in(Figure 1) . The back-and-forth twisting of the fiber causes the wheel to move in simple harmonic motion with...

Never mind, I figured it out, I subtracted 180 with 56 = 124 degrees. Thanks.

It would be in quadrant II after I plot (-2,3). Would the angle I be measuring start from the x-axis from quadrant I though?

The answer -56 would be in quadrant IV and +56 would be in quadrant one then right?

Quadrant I would be positive for the first part, and Quadrant IV would be negative on the second question. So then what I would do is 180-54=124?

Quadrant I, and III have positive angles I believe There are 90 degrees in each quadrant, and zero is located on the x-axis on quadrant I.

I believe it is on the correct quadrant as -x,+y = quadrant 2. And there should only be one intercept I believe?? I'm confused

Oh it's in the second quadrant, I see how the angle wouldn't work. So would it then be +56 degrees?

Homework Statement B⃗ = -2.0ι^ + 3.0 j^. Find the polar coordinates r and theta. Homework Equations n/a The Attempt at a Solution r=sqrt((-2.0)^2+(3.0^2)) r = 3.6 theta = tan^-1(3/-2) = -56 degrees The answers seem to be wrong, can I get any guidance on this question please?

Homework Statement You have an inertia of 52 kg and are standing at rest on an iced-over pond in your skates. Suddenly, your 60-kg brother skates in from the right with x component of velocity -4.9 m/s and collides elastically with you. 1. What is the siblings' relative speed after the...

Alright so my teacher gave us the solution to this problem, and instead of using 9.81 m/s^2, she first solved the problem with symbols and afterwards she plugged everything in while using g=9.8 m/s^2 instead of 9.81 m/s^2, which made a quite a difference in numbers. Though I will check with her...

Oh, I used 9.81 as my gravity, perhaps that may have effected my answer. Though I still haven't checked with my prof. Thanks for your input though.

I followed all that, answer is still wrong, as it comes to 0.448 m/s even without rounding numbers at all throughout the problem. The velocity should be positive, correct?

Homework Statement You are touring a distant planet on which the magnitude of the free-fall acceleration is 65.0 % of what it is on Earth. For a little excitement, you jump off a precipice 500 m above the planet's surface. After 5.00 s of free fall, you ignite the jet-pack on your back...

Homework Statement A car is 12 m from the bottom of a ramp that is 8.0 m long at its base and 6.0 m high. The car moves from rest toward the ramp with an acceleration of magnitude 2.5 m/s2. At some instant after the car begins moving, a crate is released from rest from some position along the...