Recent content by dietwater

am i right in thinking v(b) is still 2rt2? If so.. Fd + mgh + o.5mv^2 (b) = 0.5mv^2 (a) 20x0.2 + 2x9.81x0.4 + 0.5x2x(2rt2)^2 = 0.5x2x(v^2) so v = 3.98 Im not sure where Iv gone wrong

lol il start again with mgh added in! lol Fd + mgh + o.5mv^2 (b) = 0.5mv^2 (a) I don't know how to get d, I just assumed its 0.4 as its the distance it has to travel?

Homework Statement Each of the sliders A and B has a mass of 2 kg and moves with negligible friction in its respective guide, with y being in the vertical direction (see Figure 3). A 20 N horizontal force is applied to the midpoint of the connecting link of negligible mass, and the...

Homework Statement 123986[/ATTACH]"] Homework Equations H= (NI)/ (2(Pi)r) V=IR The Attempt at a Solution a) total resitance = 100ohms? from this would the current be 0.12A over 1ohm resistor: 0.12V not sure if this is correct even. Any help would be much appreciated.

Homework Statement 123984[/ATTACH]"] Homework Equations H= (NI)/ (2(Pi)r) V=IR The Attempt at a Solution a) total resitance = 100ohms? from this would the current be 0.12A over 1ohm resistor: 0.12V not sure if this is correct even. Any help would be much appreciated.

Homework Statement coursework - I will be varying the temperatures of steel ball bearings as they drop onto a metal plate, with the bounce heights, i can work out the coefficient of restitution. however, i need help on the theory behind how temperature will actually effect the coefficient...