Determine the work done by the man on the piano

Assignment Help Physics
Reference no: EM13335430

A 380 kg piano slides 3.9 m down a 27 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Determine:

(a) the force exerted by the man,

(b) the work done by the man on the piano,

(c) the work done by the force of gravity, and

(d)the net work done on the piano.

Reference no: EM13335430

Questions Cloud

Estimate the expected signal from the photodiode : A scintillator absorbs an incident flux of 5 MeV alpha particles that totals 10^6 particles/s, estimate the expected signal from the photodiode
Explain the problem is to imagine the reaction proceeds : One way to approach the problem is to imagine the reaction proceeds to equilibrium by first going 100% to completion and then backing up a little
What capital budget could firm support without issuing stock : A corporation expects to have earnings available to common shareholders (net profits minus preferred dividends) of $1,000,000 in the coming year. The firm plans to pay 40 percent of earningss available in cash dividends.
Explain the relationship between the price elasticity : (Determinants of Price Elasticity) Would the price elasticity of demand for electricity be more elastic over a shorter or a longer period of time?
Determine the work done by the man on the piano : A 380 kg piano slides 3.9 m down a 27 incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. Determine the work done by the man on the piano
What is the required reserve ratio : A bank has $120 million in total assets, which are composed of reserves, loans, and securities. its only liabilities are $120 million in transactions deposits. The bank exactly satisfies its reserve requirement, and its total reserves equal $6 millio..
Define what is the value of the equilibrium constant : For the cell reaction Cu(s) + 2Fe3+ ----> 2Fe2+ + Cu2+ Ecell=0.33V What is the value of the equilibrium constant at 25C for the cell reaction
Calculate the linear speed of the chain : The front and rear sprockets on a bicycle have radii of 8.67 and 5.55cm, respectively. Calculate the linear speed (in cm/s) of the chain as it moves between the sprockets
Can you derive an optimality condition for conditional facto : Suppose a firm uses 2 inputs to produce one output. Can you derive an optimality condition for conditional factor demand for the first input if the second factor is fixed in the short run? How does it look like?

Reviews

Write a Review

Physics Questions & Answers

  Find the magnitude of the electric field at center of arc

A charge of 20 nC is uniformly distributed along a straight rod of length 4.0 m that is bent into a circular arc with a radius of 2.0 m

  How to produce liquid water at 45°c

What inductance must be connected to a 25 pF capacitor in the oscillator capable of generating 480 nm (i.e., visible) electromagnetic waves.

  Find the charge on both conductors

A cylindrical capacitor has an inner conductor with a radius of 2.1mm and an outer conductor with a radius of 3.1mm. Find the charge (magnitude and sign) on both conductors

  Determine the total moment of inertia

Consider a merry-go-round that has the form of a disc with radius 5.5 m and mass 130 kg. what is the total moment of inertia

  How much charge is on each sphere

A total charge of 7.05 10-6 C is distributed on two different small metal spheres. How much charge is on each sphere

  Determine the spring constant of the bungee cord

A 51.1 kg bungee jumper jumps off a bridge and undergoes simple harmonic motion. what is the spring constant of the bungee cord

  Find the radius of the exoplanets orbit

Astronomers discover an exoplanet (a planet of a star other than the Sun) that has an orbital period of 3.03 Earth years in its circular orbit around its sun, Find the radius of the exoplanet's orbit in meters

  What is the shortest fm wavelength

A 77 person stands on the uniform ladder 4.0 long, that weighs 100. The floor is rough; hence, it exerts both a normal force, and a frictional force, on the ladder. The wall, on the other hand, is frictionless; it exerts only the normal force.

  Calculate the collector and base current

For a common emitter amplifer, current gain is 70. If the emitter current is 8.8mA, Calculate the collector and base current. Also calculate current gain

  Find the linear density of this string in grams per meter

The equation of a transverse wave on a string is given by the formula below. Find the linear density of this string in grams per meter

  How much time elapses from start to stop

An electric vehicle starts from rest and accelerates at a rate of 1.7 m/s2 in a straight line until it reaches a speed of 27 m/s. The vehicle then slows at a constant rate of 1.0 m/s2 until it stops. (a) How much time elapses from start to stop? (..

  Explain how much interest expense will cramer company report

The fiscal year of cramer company ends on december 31. Explain how much interest expense will cramer company report in its december 31, 2011 income statement?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd