Recent content by owtu

Anyone?

Homework Statement Using the CTFS table of transforms and the CTFS properties, find the CTFS harmonic function of the signal 2*cos(100*pi(t - 0.005)) T = 1/50 Homework Equations To = fundamental period T = mTo cos(2*pi*k/To) ----F.S./mTo---- (1/2)(delta[k-m] + delta[k+m]) The Attempt at...

or are the states your variables? I'm confused, please enlighten me

I'm not referring to the states though. What I'm referring to is the initial variables

An example: A car that senses if you have your seat belt on and the door is closed I can declare: D - for door S - for seat belt D is 1 is door is open, 0 if door is closed S is 1 if seat belt is on, 0 if it's off This is all very straight forward and can be implemented with combinational...

There is this commercial where a guy was falling asleep in physics class, the professor calls his name and asks him what's the answer to a theoretical problem the professor has on the board. The guy looks around confused, sees someone in front of him with the number 7 on his back, so he says the...

never mind, I found it. the value for K was 2.6 not 2.3, I was mistaken

Homework Statement A 490 pF capacitor consists of two 19 cm -radius circular plates, insulated with polystyrene Find the thickness of the polystyrene. Homework Equations d = (ε_0 * Area * K) / C The Attempt at a Solution I converted 490 pF to F 4.90 * 10^-10 F I...

No, the elephant is stationary. the fleas are moving at speed v1 and I'm trying to solve for the final speed of the elephant, v2

ignore how many fleas are infesting the elephant. for this problem we're supposed to assume it is infested with 30,000 fleas and they all jump off the elephant in the same horizontal direction with the same speed and at the same time

Homework Statement A flea infested elephant with a mass of 3500 kg is standing on a frozen lake wearing frictionless ice skates. If 30000 fast fleas jump off the elephants back (in a horizontal direction) per second, and each flea jumps with a velocity of 10 m/s find the velocity of the...

multiply by 120 seconds

I think I found it P = I * V then I multiply power, in watts, by 2 minutes and I got an answer in Joules, is that it?

Which is the correct formula that I should be using?

Homework Statement find electrical energy used by the light if the voltage on the battery is 110 V and the current in 2.0 minutes is 10 mA V = 110 I = 10 mA Homework Equations R = V/I The Attempt at a Solution 110 V /.010 A = 11,000 ohms = 11 k ohms I'm new to...