Open Question: How do I build a simple bluetooth beacon?
KaliMan Member since:June 09, 2008Total points:7,630 (Level 5)It doesn't need to do anything but stay in Discover mode. I do not want it to PAIR, CONNECT, or exchange data. Its ONLY purpose is to make its hardware address available to other bluetooth devices that come into range.Answer QuestionBe the first to answer this question.
Open Question: force constant of simple harmonic motion spring help please!?
mmmpizza... Member since:April 05, 2007Total points:98 (Level 1)a .50 kg mass attached to a spring undergoes simple harmonic motion with a period of .75 s what is the force constant of spring??the answer says its 140 N/m but i cannot get that answer i am using
t=2(pi)vm/k
.75=6.28v(.15/k)
.0143=.5/k
34.9????Answer QuestionBe the first to answer this question.
Open Question: Simple harmonic motion sum?
Spring constant = 1.08 N/m
Frequency = 0.120 Hz
Maximum speed = 1.19 m/s
What is the maximum magnitude of the acceleration?
What is the magnitude of the acceleration of the mass when it's displacement is one fifth of the maximum value?
Open Question: I want to know how to solve this simple math problem?
a rectangle with a perimeter of 30 cm is twice as long as it is wide. What is the area of the rectangle I'm square cm?
See easy right? But for the life of me I ant remember >:(
Open Question: Diffraction grating simple question ?!?
a) What is the lowest order that is overlapped by another order?
b) What is the highest order for which the complete wavelength range of the beam is present?
c) What is the greatest angle at which the light with the shortest wavelength appears?
Open Question: Can you help me with this question? It seems simple but even my chemistry TA got it wrong?
What is the ?H°vap of a liquid that has a vapor pressure of 641 torr at 87.4°C and a boiling point of 90.3°C at 1 atm?
I did it and got one answer, my teaching assistant for chem got another, but they are both wrong.I have one chance left to get it right on my online homework, please help me
thank you (:
Open Question: simple generator vs powerful generator?
Simple form: The amount of electricity produced is proportional to the rate of change in magnetism. The amount of magnetism produced is proportional to the rate of change in electricity.
Complete form: Look up Maxwell's equations.
If you have a wire loop (the more wires and the more loops, the better) moving past a magnet, or if you have the magnet move past the coil, you get electricity produced in the wire, because the magnetic field strength changes as things move. The hamster turns the cage, which rotates the generator, which moves something past something else, and the change in magnetic field strength inside the coil makes the electricity.
To get more power:
Bigger magnets
More wire
Faster rotation
Open Question: How many electrons are involved in this reduction? (VERY SIMPLE IF YOU KNOW IT)?
N2O ? N2
a.1
b.2
c.3
d.4
Open Question: simple formulas with out much information?
