Recent content by JennV

Homework Statement An Earth satellite used in the Global Positioning System moves in a circular orbit with period 11 hours and 58 min. The satellitle contains an oscillator producing the principal nonmilitary GPS signal. Its frequency is 1575.42 MHz in the reference frame of the satellite...

Homework Statement A long, straight wire carries a current of 14A. Next to the wire is a square loop with sides 1.0m in length, as shown in the figure. The loop carries a current of 2.5A in the direction indicated. http://img69.imageshack.us/i/walker2260.jpg/ Calculate the magnitude of...

Homework Statement A parallel-plate capacitor is made from two aluminum-foil sheets, each 3.80cm wide and 15.0m long. Between the sheets is a mica strip of the same width and length that is 0.0225mm thick. What is the maximum charge that can be stored in this capacitor? (The dielectric...

Thank you so much to everyone that left a response to my question. I did manage to get the correct answer for #1, YAY! =) But I'm still struggling with #2. Applying what has been said would it be: Where U is sqrt(x), so du=1/2x^-1/2 So I would put in -sin((1/2x^-1/2)^2), is this the...

Homework Statement 1.) Evaluate the integral ∫ x*4th root( 25 + x^2)dx 2.) Find dy/dx y= ∫2pi (upper limit) sin(t^2)dt sqrt(x) (lower limit) Homework Equations Antiderivative The Attempt at a Solution 1.) I'm not sure how would I find the antiderivative of a...

Homework Statement In deep space, three spherical masses are held in fixed positions (by rods light compared to the masses) at three corners of a square of side length sqrt(18) m as shown. The masses of the three spheres are m1 = m3 = 1.76×10^9 kg, and m2 = 2.75×10^9 kg. A relatively small...

Thank you so much tiny-tim for replying! But I actually already have derived the answer myself and it was 3.00! YAY! =D

Homework Statement A block of mass m = 9.00 kg is situated on an incline of angle θ = 51.0^{\circ} with coefficient of kinetic friction \mu_k = 0.200, and is connected to a light spring of spring constant k = 40.0 N/m via a light rope passing over a massive pulley as shown. The block is...

Homework Statement Amplified Rebound Height Two small rubber balls are dropped from rest at a height h above a hard floor. When the balls are released, the lighter ball (with mass m) is directly above the heavier ball (with mass M). Assume the heavier ball reaches the floor first and bounces...

Homework Statement A 30.0 kg particle is initially at x=0 and has a velocity of 5.50 m/s. It encounters a position-dependent net force F(x) described by the graph shown (the graph continues indefinitely in the manner shown past x=20.0 m). Diagram...

Homework Statement In the system shown in the figure, suppose the block has a mass of 2.7 kg, the spring has a force constant of 480 N/m, and the coefficient of kinetic friction between the block and the floor is 0.18. Find the work done on the block by the spring and by friction as the...

Thank you so much for helping me. =) I finally got the answer correct.

In the horizontal direction the forces that act are; applied force, static friction. So 0=Fcosθ-(uk*Fn) ?

But the Force for Fsinθ is unknown...

So N is the necessary force to move the crate?