Recent content by shaggyace

Homework Statement Three air carts have masses denoted as m, 2m, and 4m, all lined up one after another ron an air track. Initially, the cart denoted as 4m is at rest, whereas the other two carts are moving toward the cart at rest with a speed, v0 . All carts are equipped with putty bumpers...

Never mind everyone , I figured it out :)

Homework Statement A 0.500-kg block is attached to a horizontal spring that is at its equilibrium length, and whose force constant is 23.0 N/m. The block rests on a frictionless surface. A 5.60×10^-2 kg wad of putty is thrown horizontally at the block, hitting it with a speed of 2.00 m/s...

Im kind of struggling with some conservative/nonconservative force problems. Someone please help me. Homework Statement A 1.8 kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 4.3 N is exerted on it by water resistance. Let...

Figured it out. Thanks for your help :)

Homework Statement A 0.16 kg pinecone falls 18 m to the ground where it lands with a speed of 11 m/s. a)How much work was done on the pinecone by air resistance? b)What was the average for of air resistance exerted on the pine cone? Homework Equations ƩF=ma Vf^2=Vi^2 + 2aΔx...

Homework Statement The force shown in the figure (url below) acts on a 1.7-kg object whose initial speed is 0.44 m/s and initial position is x=0.27 m. http://session.masteringphysics.com/problemAsset/1123629/2/Walker4e.ch07.Pr040.jpg Part A: Find the speed of the object when it is at...

Wow, thanks a lot Calc class, lol. Got the answer, thanks for your help guys

Homework Statement A 45-kg crate is placed on an inclined ramp. When the angle the ramp makes with the horizontal is increased to 24 degrees , the crate begins to slide downward. What is the coefficient of static friction between the crate and the ramp? Homework Equations \SigmaF=ma...

Can anyone help me with this problem? Find the pH when 45.0 mL of 0.250 M NaOH(aq) is added to 35.0 mL of 0.200 M HCl(aq). I started by converting the molarities into moles but I'm having trouble with what the reaction should look like. Shouldn't it produce a salt (NaCl) and water? And...

Hey guys, I am new to the forum and could use your help on a few homework problems. Can anyone explain how to do these? 1. A baseball of mass m and initial speed v strikes a catcher's mitt. If the mitt moves x as it brings the ball to rest, what is the average force it exerts on the ball...