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Engineering - February 2007

[Selected]: All categories Science & Mathematics Engineering

2007-02-26 20:32:58 · 1 answers · asked by Me 4

How do i do it?

I am fed up of charging my pencil batteries everyday befoe i sleep.

I want i readily charged when i start my bike.

2007-02-26 20:10:53 · 5 answers · asked by Anonymous

2007-02-26 19:40:19 · 3 answers · asked by snow d 1

2007-02-26 19:27:57 · 1 answers · asked by sol19772005 1

what does a biomedical engineer do?
what are the prospects in mumbai?
which institutes offer it?

2007-02-26 19:07:02 · 1 answers · asked by nains 1

Are there any additional options in H 415 than H 400 .Please let me know.

2007-02-26 18:17:08 · 1 answers · asked by makino_bt 2

2007-02-26 17:39:51 · 6 answers · asked by K.S. THiS 3

i want the mean activity coefficient of 1:1 ,2:2,1:2electrolytes .i actually want the values at 298 kelvin

2007-02-26 17:27:11 · 1 answers · asked by radha 1

The 2.4kg particle moves in the horizontal x-y plane and has the velocity shown at time t=0. If the force F=2+(3t^2)/4 newtons, where t is time in seconds, is applied to the particle in the y-direction beginning at time t=0, determine the velocity v of the particle 4 seconds after F is applied and specify the corresponding angle θ measured counterclockwise fromt he x-axis to the direction fo the velocity.

The picture has a 2.4kg circle and a force F going up which is on the y x-axis and a velocity going down it has a positve x and a negative y and a 3/4 angle.

2007-02-26 16:42:16 · 1 answers · asked by Anonymous

2007-02-26 16:08:44 · 8 answers · asked by menaijack 1

An electric filament can heat 200 cm^3 of water from 5 degrees celcius to 95 degrees celcius in 6 minutes. If the voltage source is a 12 V battery, how much current does it draw?

2007-02-26 16:04:56 · 1 answers · asked by eelizabethd 1

A 15 ohm resistor is made from a copper wire of mass 14.2 grams. What is the wire's diameter and length?

2007-02-26 16:03:12 · 1 answers · asked by eelizabethd 1

2007-02-26 15:57:09 · 1 answers · asked by Anonymous

I am wanting to build a device to move a trailer loaded with a light boat. To power this thing I would like to use a 12 volt D.C. motor, possibly a starter motor from a car. This is where my lack of knowledge begins. I don't know how to control speed and rotational direction of a motor, or if even possible with a starter motor, if not, I'm sure I could find something suitable on E-BAY. I want to use the 12 volt,40 amp D.C. outlet on boat as a power source. Could I power a 24 volt motor with 12 volts without damage to motor, I realize I would have less torque and R.P.M. but that might be acceptable. Any input would be greatly appreciated. Please don't use abbreviation's regarding electrical gear I would be lost, I'm a mechanical kind of a guy. Thanks.

2007-02-26 15:53:49 · 4 answers · asked by luther 4

I need help with this. I have a circuit with the following...

A'+B'C'


^^ If you don't understand that it's (Inverter A OR'd with inverter B AND'ed with inverter C)

I need that circuit translated into a circuit that ONLY uses NOR Gates. Only NOR gates nothing else.

Thanks you so much if you can help!

2007-02-26 15:44:40 · 2 answers · asked by Shawn 1

2007-02-26 15:40:29 · 2 answers · asked by c.wijaya 2

i have a faraday coil with a moving magnet...creating a current. I want to capture the current with a capacitor and then use the stored charge in the capacitor to activate a motor when a swith of some sort is thrown (reed switch?). Can anyone suggest a simple circuit for me? Thanks.

2007-02-26 14:57:01 · 3 answers · asked by Gobi K 2

2007-02-26 13:43:12 · 9 answers · asked by raj 1

2007-02-26 13:36:15 · 4 answers · asked by shaker 1

as a subject in b.s. computer engineering course

2007-02-26 13:27:18 · 4 answers · asked by crenzy 1

2007-02-26 13:20:32 · 2 answers · asked by ? 2

i gotta do a term paper on mechanic engineer that has to do with physics

yes i know a lot of it has to do with physics but i have to be more specific. please gimme some topics

2007-02-26 13:14:53 · 3 answers · asked by Jay a 2

what is the type of device called where say, for instance, a balloon pops which sets in motion a bolwing ball that rolls down a plank which hits a boot and the boot kicks a switch and the switch turns on a light. seriously.

2007-02-26 13:13:36 · 14 answers · asked by askermcgee 1

I just need this information in making a pump performance curve.

2007-02-26 13:04:14 · 1 answers · asked by kim 2

I work at a cafe that uses a microwave to thaw foods. Is there a substitute for the microwave (the convection oven)

2007-02-26 13:02:54 · 2 answers · asked by wuwu 2

it does not have to be exact, i need some numbers for each voltage.

2007-02-26 12:37:03 · 4 answers · asked by haitianqueen_609 1

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