subject

Physics, 22.08.2020 01:01 pattydixon6

Work is done in lifting a barbell. How much work is done in lifting a twice-as-heavy barbell half the distance?

ansver

Answers: 2

Show answers

Another question on Physics

question

Physics, 22.06.2019 13:10

The atoms in a nickel crystal vibrate as harmonic oscillators with an angular frequency of 2.3 × 1013 rad/s. the mass of a nickel atom is 9.75 × 10-26 kg. what is the difference in energy between adjacent vibrational energy levels of nickel? (h = 6.626 × 10-34 j • s, , 1 ev = 1.60 × 10-19 j)

Answers: 2

question

Physics, 22.06.2019 15:20

Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.

Answers: 3

question

Physics, 22.06.2019 16:20

Amagnetic field applies forces on: a)static chargesb)moving chargesc)water flow

Answers: 1

question

Physics, 22.06.2019 23:20

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above

Answers: 2

You know the right answer?

Work is done in lifting a barbell. How much work is done in lifting a twice-as-heavy barbell half th...

Questions

question

Health, 06.09.2019 23:10

In acute hypersensitivity reactions, 0.5 ml of a 1: 1000 (w/v) solution of epinephrine may be administered subcutaneously or intramuscularly. w/v solu...

question

Social Studies, 06.09.2019 23:10

Ateacher who is unable to orient the class toward classroom tasks and lacks a repertoire of strategies for dealing with off-task behavior is lacking i...

question

Mathematics, 06.09.2019 23:10

Joel can run around a 14– mi track in 81 sec, and jason can run around the track in 69 sec. if the runners start at the same point on the track and ru...

question

Business, 06.09.2019 23:10

Kroger decided to introduce a new product that appeals to hispanic consumers. while the product is highly successful among hispanic consumers, other e...

question

Physics, 06.09.2019 23:10

Atire is filled with air at 10 ∘c to a gauge pressure of 250 kpa. part a if the tire reaches a temperature of 45 ∘c, what fraction of the original air...

question

Mathematics, 06.09.2019 23:10

Try the following example. remember to use the hints if you need them. solve for x. 2.9×10−7=(x)(x)2(4.6)(4.6)2(3)2 choose the correct answer. view av...

question

Physics, 06.09.2019 23:10

17–22. position from velocity consider an object moving along a line with the given velocity v and initial position. a. determine the position functio...

question

Business, 06.09.2019 23:10

On september 1, marigold purchased $40600 of inventory items on credit with the terms 1/15, net 30, fob destination. freight charges were $850. paymen...

question

Physics, 06.09.2019 23:10

Ring c has an inside radius of 55 mm and an outside radius of 60 mm and is positioned between two wheels a and b, each of 24-mm outside radius. knowin...

question

Social Studies, 06.09.2019 23:10

Cathy has forgotten to do her laundry this week. since she is running late for class she wears the only clean shirt she has, a "new kids on the block"...

question

Computers and Technology, 06.09.2019 23:10

What is a layer 2 device that receives an electrical signal in one port, interprets the bits, and makes a filtering or forwarding decision about the f...

question

Social Studies, 06.09.2019 23:10

The supremacy clause of the u. s. constitution has supported the (4 points) a. state governments' sovereignty over matters of foreign policy an...

question

Geography, 06.09.2019 23:10

Unknowingly, a majority of the people chosen for a researcher's sample live in cold-weather areas like alaska. the results of his survey about clothin...

question

Social Studies, 06.09.2019 23:10

Susan solomon hypothesized that clo levels would be increased if ozone depletion came about because of cfcs. her team found elevated levels of clo in...

question

Mathematics, 06.09.2019 23:10

Find an equation of the line that passes through the point (−1, 2) and is parallel to the line passing through the points (−2, −3) and (2, 5). (let x...

question

Social Studies, 06.09.2019 23:10

Carl woese proposed the domain classification choose one: a. to account for two major and distinct prokaryotic groups in addition to eukaryotes. b. t...

question

Computers and Technology, 06.09.2019 23:10

To be effective, an exercise program must be a. uniquely tailored to every person b. maintained at a constant level of difficulty c. applied generall...

question

Computers and Technology, 06.09.2019 23:10

What are the three components of the fitt acronym associated with overload and progression? a. frequency, intensity, and type b. time, frequency, and...

question

Business, 06.09.2019 23:10

Winston industries had sales of $843,800 and costs of $609,900. the firm paid $38,200 in interest and $18,000 in dividends. it also increased retained...

question

Social Studies, 06.09.2019 23:10

The family educational rights and privacy act (ferpa) was put into law in 1974, and contains several key elements. which of the key elements states th...

More questions: Physics Another questions

Questions on the website: 13722363