Jose Luis

A 1300 kg El Camino is parked on a 20 degree hill.(20 degrees above x axis)The driver of the El Camino returns, starts the car, and accelerates up the hill at 2 m/s^2. Find Sigma-Fx and Sigma-Fy. What is the normal Force acting on the car, and what is the...

A 5.0 kg skater begins a spin with an angular speed of 4 rad/s. By changing the position of her arms, the skater decreases her moment of inertia to one half its initial value. What is the skater's final angular speed? I thank you in advance for your time....

A 5.0 kg skater begins a spin with an angular speed of 4 rad/s. By changing the position of her arms, the skater decreases her moment of inertia to one half its initial value. What is the skater's final angular speed? I know the answer to be 8 rad/s, howe...

The earth spins on its axis once a day and orbits the sun once a year (365 1/2 days). Determine the average angular velocity (in rad/s) of the earth as it (a)spins on its axis and (b) orbits the sun. In each case, take the positive direction for the angul...

A spring has a spring constant that is 120 N/m, and has a 0.1 kg block attached to it. The spring and mass sit on a horizontal surface that has no friction. The block is pulled 0.2 m and then released. Please find the frequency of the oscillations, the pe...

Water enters a pipe with a cross sectional area of 3.0 cm^2 with a velocity of 3.0 m/s. The water encounters a constriction where its velocity is 15 m/s. What is the cross sectional area of the constricted portion of the pipe?

A 0.60 kg mass is attached to a 0.6 m string and displaced at an angle of 15 degrees before it is released. 1)What is the potential energy of the pendulum? 2) What is the angular frequency of the pendulum? What is the height of its displacement? 4) What i...

A 8 kg block is moving with an initial speed of 6 m/s on a rough horizontal surface. If the force is 12 N, approximately how far does the block travel before it stops? *I have: V^2=Vi^2+2ax 0=(6 m/s)^2 + 2(-9.8 m/s^2)(x) -36 m^2/s^2 = -19.6 m/s^2(x) x = 1...

5) A microwave transmitter typically requires a +8dBm audio level to drive the input fully. If a +10dBm level is measured, what is the actual voltage level measured? Assume a 600Ω system.

First thing you want to do is get the letter variable on one side by itself. In order to do this you must subtract two, and whatever you do to one side you must do to the other. u+2=4 u+2-2=4-2; u=2

I figured it out.

I figured it out, thanks anyway!

I figured it out!

I figured it out!

I'm sorry, I wasn't sure how to post the picture. The picture I have is horizontal and stretched in the positive direction. The position when the spring is unstrained is stretched to Xo .3m. Then released the spring is at Xf .1m. Stretch to the right. Tha...

I wasn't sure why I wasn't getting any responses on this, but now I know. I will do better when asking for help next time. Thank you Damon, I really appreciate your response and telling me why I wasn't getting any help.

9x3=27 27x3=81 81x3=243 243x3= ?x3=?

Okay, I see now. Thanks Damon. I need to find acceleration first, then apply the kinematics formula. Thank you so Much!

Nice! Thanks Again Damon, you're the best. The Master will point the way; however, I must make the effort. Thank you so much for pointing the way. Many Blessings!