 |
No items matching your keywords were found.
|
No items matching your keywords were found.
Check Speed Trap Online
Physics Help! spring/oscillation problem?
Luke is trying to catch a pesky animal that keeps eating vegetables from his garden. He is building a trap and needs to use a spring to close the door to his trap. He has a spring in his garage and he wants to determine the spring constant of the spring. To do this, he hangs the spring from the ceiling and measures that it is 18.8 cm long. Then he hangs a 1.10 kg brick on the end of the spring and it stretches to 39.8 cm.
(c) When the displacement is 2.3 cm from the equilibrium position, what is the speed of the brick?
wrong check mark m/s
(d) How long will it take for the brick to oscillate five times?
wrong check mark s
I left part A and part B out because I already figured those out and got it right online.
Mass M = 1.10 kg
Force F = Mg = 1.10 * 9.81 = 10.791 N
Change in length deltaL = 39.8 cm - 18.8 cm = 21 cm = 0.21 m
Spring constant k = F/deltaL = 10.791/0.21 = 51.386 N/m
c)Angular frequency w = sqrt(k/M) = sqrt(51.386/1.10) = 6.835 rad/s
Note: In (a) or (b), is it given that the spring is stretched or compressed any further? For example, may be that once the block comes into equilibrium, then the it is moved further by some amount? If yes, then the answer to (c) will depend on that.
d) Time period T = 2*pi/w = 2*pi/6.835 = 0.9193 s
Time to oscillate 5 times = 0.9193 * 5 = 4.6 second (after roundig off)
|
No items matching your keywords were found.
|
No items matching your keywords were found.
|
No items matching your keywords were found.
|
No items matching your keywords were found.
|
No items matching your keywords were found.
| | Tripod for the Speed-Trap II Wireless Timing System $67.92 For use with the TC-Speed-Trap II Wireless Timing System (shown). |
| | Timer with USB Port for the TC-Speed-Trap II Wireless Timing System $759.95 For use with the TC-Speed-Trap II Wireless Timing System (shown). |
| | Speed Trap I Timing System $594.67 Times distances up to 55 yards1/100 second accuracyStarts upon release of pressure on foot padTime is stopped when infrared finish line beam is trippedIncludes Speed Trap I timer, start pad, 55 yards of wire, sensor, stopwatch, tripod, carrying case and instructions.Please Note: This item CANNOT ship to P.O. Boxes, APO, or FPO Addresses. It CAN ONLY ship to a Street Address. |
| | Speed Trap $6.49 Speed Trap |
| | Speed Trap II Extra Sensors - 1 Pair $614.67 Extra sensors for Speed Trap II Timing System.Please Note: This item CANNOT ship to P.O. Boxes, APO, or FPO Addresses. It CAN ONLY ship to a Street Address. |
| | Tripod for the Speed Trap I Timing System $100.86 Tripod for use with the Speed Trap I Timing System (shown).Please Note: This item CANNOT ship to P.O. Boxes, APO, or FPO Addresses. It CAN ONLY ship to a Street Address. |
| | Green Speed Meter $105.26 Measures the official stimp speed of any golf putting green.Simply mark a spot on a flat area of the green and place the end of the meter on the mark.Put a golf ball in the hole of the meter and slowly lift the end of the meter causing the ball to roll out.Measure the distance the ball rolls from the mark.Repeat this several times.Find the average measurement from the different tests.This average number is the stimp meter speed of the putting green.Take the stimp meter with you to various golf courses to check the stimp speed of their greens.Learn how to adjust your shots based upon the stimp speed of different greens.A must have for any shop.Comes with instructions.Solid aluminum material. |
| | Attacking Defenses With the Shotgun Quarterback Trap (DVD) $35.82 Attacking Defenses With the Shotgun Quarterback Trap presents an in-depth analysis of the basic fundamentals and techniques necessary to execute the quarterback trap in the shotgun offense from one-back, two-back, and no-back formations. The DVD also details the companion plays that setup the quarterback trap, the inside-zone play, and the F-trap. Among the topics covered: benefits of including the quarterback trap in a team’s offense, quarterback trap from a variety of formations, the F-trap as a companion play to the quarterback trap, the quarterback trap vs. an even front, the quarterback trap vs. an odd 3-3 front, and the quarterback trap vs. an odd 3-4 front. |
| | Shotgun Trap Scheme (DVD) $35.82 Shotgun Trap Scheme presents a philosophical overview and an in-depth analysis of the basic fundamentals, techniques, and blocking schemes necessary to execute the shotgun trap play. The DVD explains and illustrates how to take advantage of overaggressive defenses, both with the F back and the quarterback as the primary ballcarrier. The DVD also details how to run the shotgun trap from multiple formations with both one-back and two-back sets. Among the topics covered: counter vs. even front, counter vs. odd front, pulling the center, line calls to counteract defensive stunts and blitzes, counter vs. 3-3 odd stack front, and counter, guard, and tackle pull drills. |
| | TRAP COMP.,FLAME $40 With a competitive price like this, for such a high quality component, it really is not worth trying to rejuvenate the original! For other related components, check out our online schematic or for your model, and ensure you or.. |
| | Check-Go Pro Golf Ball Sweet Spot Finder from Izzo Golf $45.45 Make more putts, hit straighter shots, and drive the ball longer with the Check-Go Pro Golf Ball Sweet Spot Finder. The Check-Go Pro enables you to locate your golf ball's sweet spot with scientific precision, thus reducing the chance of hooks and slices off the tee and missed putts on the green. How it works: The high speed gyroscopic action realigns the ball's variance in mass along its equator While spinning, you use the special pen to permanently mark the ball's unique equator The built-in alignment cup allows you to mark partial or full lines without additional toolsThe new ergonomic design and "Balance Timer" feature shows you the exact moment to mark the ball On the tee or green, simply line up the ball's equator with your target and swing as usual Includes: 2-AA batteries and permanent marker pen |
| | The 1-3-1 Half-Court Trap (DVD) $35.82 The 1-3-1 Half-Court Trap provides a step-by-step review of how to change the pace of a game both offensively and defensively by employing this pressure-oriented method of half-court zone defense. Appropriate for coaches and teams at all competitive levels, the DVD uses on-court player demonstrations to help explain and illustrate the fundamentals and techniques involved in the 1-3-1 half-court trap. Among the topics covered: the basic 1-2-2 zone defense, the wide 1-3-1 defense, coverage on the point, coverage in the corner, coverage on ball rehearsal, 5-on-5 coverage, the 1-3-1 soft trap, the 1-3-1 hard trap, and covering the high and low post. |
| | Trap / Hip Bar $187.1 Designed to accommodate users of all sizes, the Hip/Trap bar represents an ergonomic breakthrough versus conventional bars. This unique design facilitates an optimal power position, placing the load on the hips and alleviating undue stress on the back.Please Note: This item CANNOT ship to P.O. Boxes, APO, or FPO Addresses. It CAN ONLY ship to a Street Address. |
| | PC Check & Tuning 2011 $42.99 Reliability speed and stability are a must for anyone who uses PCs and notebooks on a daily basis whether for work to surf online play games or edit videos. |
| | 10 1/2 Youth Playmaker Series Ball Glove from Rawlings (Worn on the Left Hand) $28.15 10 1/2" youth patternConventional backBasket Web®Speed Trap.Worn on the left hand for a right handed thrower |
| | Trap $12.49 Trap |
| Account limit of 2098 requests per hour exceeded. |
Speed Trap Race
The Definitive Guide to Comparing Broadband Speeds
Are you finding the comparison of broadband packages and range of speeds bewildering to say the least? Does confusion reign? Don't reach for the tablets just yet.
I have defined the most important points you should bear in mind when comparing the wide range of broadband speeds on offer through a broadband comparison site like ChooseISP.co.uk, which allows you to compare broadband speeds of all the main UK broadband providers.
The five points below will help you to ultimately make the most suitable choice of broadband package in the easiest and fastest way possible. To coin a phrase, it will be easier than falling off a log.
Here is a 5-point check list for you to run through before making any firm decisions.
Once you have gone through it, you should have no trouble at all in making your decision about which high-speed broadband package you should choose, especially with the help of a broadband comparison table.
1. Amount of Usage
The first thing to look at, before you start comparing broadband speeds, is to decide how much you will use your broadband and for what purpose you intend using it.
For instance, if your use of the internet is considerable you should preferably choose a faster broadband connection with no download limits.
However, if you are not often online a cheaper but slower broadband connection might be preferable, even if it is possibly a bit more limited.
2. Cable or ADSL?
Where you live can have a marked influence on the speed of your broadband connection. Yes, it is definitely a case of location, location, location as the property Phil & Kirsty would have it.
Do you live in a cable area? If you do, then you will be able to receive Virgin Media Broadband packages by way of a fibre optic network which is really a bonus as cable networks almost always stick religiously to their advertised broadband speeds.
ADSL providers, on the other hand, make use of BT telephone lines which, for various reasons, are unable to provide accurate download speeds, offering only speeds "up to" a certain level.
The words “up to” should set the red lights flashing as they shrewdly disguise any speed shortcomings.
However, most places are enabled with ADSL Max, which means anything up to 8Mb.
3. Where you live is important (we did warn you about ''location''!)
Where you live is significant because, even though broadband technology has improved in leaps and bounds in the last few years, there are still some areas that are more equal than others. You have heard that hoary old chestnut before, haven’t you?
The ADSL broadband speed in one part of the UK is vastly different from that in another part due to a number of factors, for one, the condition of your phone line.
To overcome this problem, a number of broadband providers, such as Be Broadband, O2 Broadband, Sky or UK Online make use of ADSL2+ technology, replacing BT equipment in the exchanges with their own, with the result that they can offer broadband speeds of up to 24Mb.
4. Is your phone line affecting your broadband speed?
If you one of those using a BT phone line to receive your broadband, the material condition of your line and how far you are from the exchange may affect your broadband speed, as the signal strength deteriorates over distance on copper telephone wires.
If you do live some way from your telephone exchange you should seriously consider using one of the ADSL2+ providers, such as Be Broadband and 02 Broadband to trap as much extra valuable broadband speed as possible.
Take the trouble to check your actual distance from your nearest telephone exchange, as the crow flies of course, before making your decision.
5. Avoid being ''throttled'' (does your car have a throttle AND a choke? Lucky you!)
Something to remember when you are analysing different broadband speeds is that in the evenings and at other busy times, broadband providers have to organise their internet flow so as to avoid ''traffic'' jams.
This means that people who have used up their bandwidth allocation or breached the ISP's "fair use policy" in any way will have their speeds cut, or "throttled", in fairness to fellow users on the broadband service. Beware the speed police. It may be enough to make you choke.
With this in mind, always look carefully at the broadband provider's Fair Use Policy or speed management system to see how this might influence your usage.
If you think you might be affected by this, have a look at the ISP policies of providers such as Be Broadband, 02 Broadband and PlusNet, whose users speak highly of their fair policies and transparency.
About the Author
Shirley Stevens is a freelance IT journalist specialising in the UK broadband market. She writes extensively for broadband comparison site ChooseISP.co.uk, that compares broadband speeds and allows you to find the fastest UK broadband packages, or the cheapest broadband deals.
nice run guys mustang's ftw.. american muscle baby , gota love that thunder coming out of the tips, check my vids i have a 2 valve thats soon to be a monster