Meter Counter
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How much work will it take to lift a 15-kg bag 1 meter onto the counter?
I'm having a difficult time w. this question.
Can someone explain to me?
This is actually a physics question as much as it is a math question. Work, in physics, is defined as the amount of energy transferred by a force moving through a distance:
W = F·d
Work has, as its unit, the Joule, which is the amount of work created by applying 1 Newton of force over 1 meter.
The force required, in this case, is equal to the force you're trying to counteract, namely gravity: F = ma = (15kg)(9.8 m/s²) = 147 N
So W = (147 N)(1 m) = 147 J.
Hope that helps!
Nixie Based Ameteur frequency counter/meter
 Dosy FC50-P Frequency Counter Sale Price: $69.97  Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionDosy Frequency Counter Model: DS-FC50-P Description: * Measures RF signal or TX channel to ant. * Level from .1 to 1V max * Range from .5MHz to 50MHz * Has input-output type SP-239 connectors * Dosy professional architecture * Printed circuit board * Power pack included * Blue LED color  |
 Trifield 100XE EMF Meter Sale Price: $127.50 Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionThe TriField Meter is the only EMF meter which offers magnetic, electric, and radio/microwave detection in one package. This meter combines all these unique features with affordable pricing for fast, reliable measurements of electromagnetic pollution: Continuous sampling analog readout; Omni-directional electric & magnetic sensitivity; Two separate scales for magnetic field readings; Hand-held portability and simplicity... |
 RADIATION DETECTOR DOSIMETER TERRA-P FOR HOUSEHOLD USE !!!ENGLISH VERSION!!! Sale Price: $1,499.00 See Reviews For This Product DescriptionTERRA-P is an excellent quality easy-to-use miniaturized dosimeter-radiometer for domestic applications. It can measure gamma and X-ray radiation equivalent dose rate and equivalent dose as well as to check a surface for beta-particles flux density... |
 Omron HJ-112 Digital Pocket Pedometer List Price: Sale Price: $21.49 You save: $13.50 (39%) Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionDual accelerometer sensor allows pedometer to be placed horizontally or vertically, accurately counts every step, separately counts aerobic steps, calculates distance, calculates calories and fat grams burned, 7 day display memory, resets at midnight automatically; includes clock and battery |
 Digital Geiger Counter with Wand & PC (serial) Output Sale Price: $449.95 Eligible for free shipping!See Reviews For This Product DescriptionImages SI Inc's Digital Geiger Counters are useful for detecting and measuring radioactivity. The model GCA-04W uses an external wand that houses the geiger mueller tube. It's applications are: Education - Classroom demonstrations and experiments... |
 Casio Men's SGW200-1VCF Pedometer Resin Strap Watch List Price: Sale Price: $41.50 You save: $23.45 (36%) Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionDesigned as a running companion, the Casio Men's Pedometer Resin Strap Watch #SGW200-1VCF has a built-in pedometer to help keep tabs on distance, energy expenditure, average pace, and number of steps. Other athletic and general watch functions include a stopwatch and countdown timer, five daily alarms and a calendar, and a backlit display with Afterglow technology... |
 Sunpro CP7953 Analog Hour Meter - Black Face List Price: Sale Price: $47.99 You save: $8.00 (14%) Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionThis electrically-driven analog hour meter has an attractive black face plated with a chrome bezel. This gauge mounts into a 1 3/4-in to 2-in opening and provides a precise record for determining the operating period of an engine in elapsed hours... |
 Log Counter/Tally Meter (each) Sale Price: $8.70 Eligible for free shipping!Availability: Usually ships in 1-2 business days See Reviews For This Product DescriptionSimplifies counting. Counts up to 9999. |
 Elenco - Hand-Held 3GHz Universal Counter List Price: Sale Price: $135.13 You save: $23.12 (15%) Eligible for free shipping!Availability: Usually ships in 24 hours See Reviews For This Product DescriptionHand-Held 3GHz Universal Counter. A compact, pocket-size test instrument, designed for ease of use and dependable performance. Advanced features such as Field Strength Measurement are incorporated in the F-2800... |
