Recent content by dban33

Ok good I am sortof on the right path then with the conservation of mometum equation. Is the conservation of energy equation V1i-V2i=-(V1f-V2f). Both of these equations involve velocity though and I was not given that in the problem, where do I get that from?

Ok...so the lighter the block is...the stronger the force will be. Does that mean that for the equation F=-kx...im trying to solve for x right? because x is the elongation of the spring. This would mean that I would have to know the force of the block. Is the force of an object its mass times...

Ok so I had the angular velocity correct but I do not have time to put into the equation. For the angular momentum what are I and ω?? Also, for the torque equation Torque= R x F AT...what do all of those letters mean?

Gravity causes it to fall. It falls 1.05 meters. I do not know the time because that is what I am trying to find. How do I find the horizontal speed? I also don't know how the speed is realted to the pressure and the area of the hole or the depth of the water at the hole. What are the...

HELP! I am desperate! 1. Homework Statement The minute hand of big ben is made of copper, has a length of 4.27 meters, and a mass of 101.6kg. The hour hand is made of gunmetal, has a length of 2.74m, and a mass of 304.8kg. Assume that each hand is a uniform rod and rotates about one end. Use...

Well I am trying to find the elongation of the spring. So the correct equation is F=-kx? Does that mean that I change it to solve for x?? x= F/-k I do not kno how to find the force for the equation if I only have the mass and density of the wooden block the string is attached to. I am...

Homework Statement How do I find the elongation of a spring when just given K=119 N/m, mass of the wooden block it is attached to=4.17kg and the densty of the wooden block = 695 kg/m^3. Homework Equations I do not know what equation to use. The Attempt at a Solution I have not...

Homework Statement A small dutch boy, Hansel, and his little sister, gretal, were walking home from school along a polder when they saw a stream of water squirting horizontally fom a hole in the dyke. Hansel used a meter stick and found that the hole was a distance Y1= 1.05 m above the polder...

Homework Statement Minnie mouse (mass m=37.5g) has run to the top of a curved frictionless wedge (height H1=1.15m) She slides down the track and makes a perfectly elastic collision with mickey mouse (mass m=69.8 g) who is at rest. Mickey flies off the table (height H2= .993 m) above the floor...

Homework Statement One end of a massless spring with hook-law constant K=119 N/M is epoxied to the bottom of a beaker. The other end of the spring is epoxied to a wooden block of mass m=4.17 kg and density 695 kg/m^3. THe beaker if filled with water until the block is fully immersed. Calculate...

Homework Statement The minute hand of big ben is made of copper, has a length of 4.27 meters, and a mass of 101.6kg. The hour hand is made of gunmetal, has a length of 2.74m, and a mass of 304.8kg. Assume that each hand is a uniform rod and rotates about one end. Use a cartesian coordinate...