Recent content by bdh2991

A computer consulting firm presently has bids out on three projects. Let Ai = {awarded project i}, for i = 1, 2, 3, and suppose that P(A1) = 0.22, P(A2) = 0.25, P(A3) = 0.29, P(A1 ∩ A2) = 0.07, P(A1 ∩ A3) = 0.09, P(A2 ∩ A3) = 0.05, P(A1 ∩ A2 ∩ A3) = 0.02. The question is to find the...

I think I actually figured it out but using a JK flip flop rather than only an SR flip- flop... Not sure how to fix the undefined issue with 1 - 1 going into the SR without using the JK...any suggestions?

Homework Statement A Null-Lobur flip-flop (NL flip-flop) behaves as follows: If N = 0, the flip-flop does not change state. If N = 1, the next state of the flip-flop is equal to the value of L. a) Derive the characteristic table for the NL flip-flop. b) show how an SR flip-flop can be...

ok so basically the rotational + translation in the rolling ball would equal the translational of the sliding block, however because the rolling ball is losing energy to friction the box would be faster?

But wouldn't that mean it has more kinetic energy therefore it would be moving faster?

Homework Statement If you are trying to loosen a stubborn screw from a piece of wood with a screwdriver and fail, should you find a screwdriver for which the handle is (a) longer or (b) fatter? Homework Equations \tau = r * F * sin(\theta) The Attempt at a Solution I guessed...

Homework Statement A ball rolls without slipping down incline A, starting from rest. At the same time, a box starts from rest and slides down incline B, which is identical to incline A except that it is frictionless. Which arrives at the bottom first? (a) The ball arrives first. (b) The...

Homework Statement A 1.02 kg beaker containing 1.98 kg of oil (density = 916.0 kg/m3) rests on a scale. A 1.98 kg block of iron is suspended from a spring scale and completely submerged in the oil. Determine the equilibrium readings of both scales. What does the top scale read...

nvm...i complete forgot that d = m/v, therefor the force due to gravity is the same for mg or density*g*volume...sorry about that

Homework Statement A cube of wood having an edge dimension of 20.9 cm and a density of 651 kg/m3 floats on water. what is the distance between the top of the cube to the water level? Homework Equations F = density*g*Volume The Attempt at a Solution I believe i have the right...

ok so changing the equation to that gives me: 5(3*3k-2 - 2*2k-2) - 6( 3k-2 - 2k-2) i can see how that gave me some like terms but multiplying through gives me: 15 * 3k-2 - 10 * 2k-2 - 6 * 3k-2 - 6 * 2k-2 i feel like that wasn't where you were leading me lol...i'm sorry, I'm not that...

This is what i tried doing at i stated above...after you plug them in i get 3k - 2k = 5( 3k-1 - 2k-1) - 6(3k-2 - 2k-2), I don't really understand what i can do with that algebraically...i must just be missing it...

Homework Statement Let d0, d1, d2,... be defined by the formula dn = 3n - 2n for all integers n ≥ 0. Show that this sequence satisfies the recurrence relation. dk = 5dk-1 - 6dk-2.Homework Equations The Attempt at a Solution I found that dk = 3k - 2k dk-1 = 3k-1 - 2k-1 dk-2 = 3k-2 - 2k-2...

Homework Statement A thin, cylindrical rod = 27.0 cm long with a mass m = 1.20 kg has a ball of diameter d = 10.00 cm and mass M = 2.00 kg attached to one end. The arrangement is originally vertical and stationary, with the ball at the top as shown in the figure below. The combination is...

the block vertically would be falling at the same rate that the block on the table is moving...correct?