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July 22, 2014

Search: 1920 W motor to lift a 285 kg piano to a sixth-story window 16.0 m above?

Number of results: 2,310

physics
How long will it take a 1920 W motor to lift a 285 kg piano to a sixth-story window 16.0 m above?
October 12, 2009 by jerry

Physics
How long will it take a 1830 W motor to lift a 285 kg piano to a sixth-story window 16.0 m above?
November 10, 2011 by Kristy

physics
How long will it take a 1630 W motor to lift a 285 kg piano to a sixth-story window 16.0 m above?
April 10, 2012 by Amelia

physics
how long will it take a 1750-watts motor to a lift a 285-kg piano to a sixth storey window 1.6 meters above
October 5, 2012 by kyla

physics
How long will it take a 230 W motor to lift a 335 kg piano to a sixth-story window 19.0 m above?
February 28, 2010 by peyli

Physics
How long will it take a 1080 W motor to lift a 330kg piano to a sixth-story window 16.0m above?
February 21, 2011 by John

Physics
How long will it take a 1080 W motor to lift a 330kg piano to a sixth-story window 16.0m above?
February 21, 2011 by John

Physics
How long will it take a 1080 W motor to lift a 330kg piano to a sixth-story window 16.0m above?
February 21, 2011 by John

physics
How long will it take a 1280 W motor to lift a 345 kg piano to a sixth-story window 19.0 m above?
February 28, 2011 by Kathleen

physics
How long will it take a 1030 W motor to lift a 330 kg piano to a sixth-story window 13.0 m above?
December 18, 2011 by ayyya

Salisbury University
How long will it take a 480 N motor to lift a 335 kg piano to a sixth-story window 15.0 m above?
April 6, 2011 by Cara

physics
a) In raising a 4800 N piano with a pulley system, the workers note that for every 2 m of rope pulled down, the piano rises 0.3 m. Ideally, how much force is required to lift the piano? (b) If the workers actually pull with 2500 N of force to lift the piano, what is the ...
February 8, 2007 by janice

physics
In raising a 4000-N piano with a pulley system, the workers note that for every 1.6 m of rope pulled downward, the piano rises 0.22 m.Ideally, find the force that is required to lift the piano.
March 3, 2012 by Mrs G

physical science
In raising a 5000-N piano with a pulley system, the movers note that, for every 2m of rope pulled down, the piano rises 0.3m. Ideally, show that the force required to lift the piano is 500-N.
February 28, 2012 by erin

physics
motor A lift a steel bar 5000N upward at a constant 2m/s. motor B lift 4000N steel bar upward at a constant 3m/s. which motor is supplying more power?
February 26, 2013 by Anonymous

Physics
An electric motor is rated to have a maximum power output of 0.72 hp. If this motor is being used to lift a crate of mass 188 kg, how fast (i.e., at what speed) can it lift the crate? Hint: Assume the only other force on the crate is the force of gravity.
May 28, 2012 by Alex

physics
a set of pulleys is used to lift a piano weighing 1,000 newtons. the piano is lifted 3 meters in 60 secounda. how much power is used?
November 4, 2010 by safiyyah

physics
A 187 W motor will lift a load at the rate (speed) of 6.58 cm/s. How great a load can the motor lift at this rate?
April 26, 2011 by Merlin

physics
How long will it take a motor 1500 watt motor to lift a 500kg elevator 30 meters? Give your answer in minutes.
February 26, 2012 by Darcie

Physics
A pulley system is used to lift a piano 2.6 m. If a force of 2510 is applied to the rope as the rope is pulled in 14 m, what is the efficiency of the machine? Assume the mass of the piano is 750 kg. I know the equation is eff = Wout / Win I'm just confused on what I'm supposed...
March 29, 2011 by Becky

Physics
(a).A 220-kg sleigh is pulled by one horse at constant velocity for 0.90 km on a snowy, horizontal surface, the coefficient of kinetic friction between the sleigh runners and snow is 0.27. What power must the horse deliver to the sleigh for the trip to take 9 minutes? (b) ...
October 24, 2009 by Sandhu

Physics
a 300kg piano is being lifted at a steady speed from ground level straight up to an apartment 10.0m above ground. The crane that is doing the lifting produces a steady power of 400 W. How much time does it take to lift the piano?
November 25, 2008 by Delli

art
A piano whose mass is 106 kg is being lifted at a steady speed from ground level straight up to an apartment 12.4m above the ground. The crane that is doing the lifting produces a steady power of 565W. How much time does it take to lift the piano?
October 25, 2009 by lawless

college physics
What distance will a 10 hp motor lift a 2000 lb elevator in 30 s? What was the average velocity of this elevator during the lift?
November 11, 2011 by Jessica

Physics
A 900W motor is used to lift 275.51kg of bricks a distance of 30, to the roof of the building. a. If the motor ran for 90s how much work did it do? b. What is the potential energy of the bricks? I know how the calculate work, but I'm really confused about how to calculate it ...
January 6, 2011 by Jacie

Physics
A 3.60 102-kg piano is being lifted at a steady speed from ground level straight up to an apartment 18.0 m above the ground. The crane that is doing the lifting produces a steady power of 4.00 102 W. How much time does it take to lift the piano?
February 25, 2008 by Peter

college: physics
A 4.00 102-kg piano is being lifted at a steady speed from ground level straight up to an apartment 16.0 m above the ground. The crane that is doing the lifting produces a steady power of 4.00 102 W. How much time does it take to lift the piano?
October 12, 2009 by Anonymous

Physics
Your sofa won't fit through the door of your new sixth-floor apartment, so you use a 1.19 motor to lift the 88.6 sofa 18.3 from the street. How much time does the lift take?
December 5, 2012 by Amanda

Pysics
A small motor runs a lift that raises aload of bricks weighing 836N to a height of 10.7m in 23.2s. assuming that the bricks are lifted with constant speed, what is the minimum power the motor must produce?
March 15, 2010 by Cody

physics
A 301 kilogram piano is being lifted at a steady speed from ground level straight upward to an apartment 10.0 meters above the ground. The crane that is doing the lifting produces a steady power of 415 watts. How long does it take to lift the piano? I dont understand how to ...
November 7, 2013 by Lupita

Physics
A construction crew pulls up an 87.5-kg load using a rope thrown over a pulley and pulled by an electric motor. They lift the load 15.1 m and it arrives with a speed of 15.6 m/s having started from rest. Assume that acceleration was not constant. a. How much work (J) was done ...
July 31, 2012 by Anonymous

Physics
A construction crew pulls up an 87.5-kg load using a rope thrown over a pulley and pulled by an electric motor. They lift the load 15.1 m and it arrives with a speed of 15.6 m/s having started from rest. Assume that acceleration was not constant. a. How much work (J) was done ...
July 31, 2012 by Anonymous

physics ---- really dnt get this at all
A small electric motor is used to lift a 0.50-kilogram mass at constant speed. If the mass is lifted a vertical distance of 1.5 meters in 5.0 seconds, the average power developed by the motor is
May 8, 2011 by ashley --- HELP PLEASEE!!!

Math
The monthly car payments for Ted Nelson's last eight customers were $266, $285, $285, $285, $285, $315, $325, and $344. Decide whether the mode represents these data well. Explain. Please help, I think yes, because it has a mode and it makes up half of the data, but I'm not ...
March 5, 2012 by Catherine

Physics
A construction crew pulls up an 87.5 kg load using a rope thrown over a pulley and pulled by an electric motor. They lift the load 15.5 m and it arrives with a speed of 15.6 m.s having started from rest. Assume that acceleration was not constant. How much work was done by the ...
June 3, 2011 by Casey

Physics
container factory uses a 450 W motor to operate a conveyor belt that lifts containers from one floor to another. To lift 250 1-kg containers a vertical distance of 2.4 m, the motor runs for 45 s. What is the efficiency of the motorized conveyor system?
July 18, 2012 by Rob

Physics
container factory uses a 450 W motor to operate a conveyor belt that lifts containers from one floor to another. To lift 250 1-kg containers a vertical distance of 2.4 m, the motor runs for 45 s. What is the efficiency of the motorized conveyor system?
July 18, 2012 by Rob

Science
container factory uses a 450 W motor to operate a conveyor belt that lifts containers from one floor to another. To lift 250 1-kg containers a vertical distance of 2.4 m, the motor runs for 45 s. What is the efficiency of the motorized conveyor system?
July 18, 2012 by Jack Hill

algebra
The power (P) required to run a motor is equal to the voltage (E) applied to that motor times the current (I) supplied to the motor. If the motor data says the motor uses 180 watts of power and the voltage applied to the motor is 120 volts, how much current will the motor ...
June 11, 2012 by laquel

Physics
A diagram represents a simplified sketch of an electric DC motor.which contains a magnet, commutator, carbon brushes, coil and a pivot. when the electric motor is connected to a 12V DC supply, it draws a current of 1,2A. The motor is now used to lift an object of mass 1,6kg ...
October 11, 2010 by READ ME PLEAZZ

Physics
1. A 2.5kg rock is dropped from a 350m cliff. It hits the ground with a speed of 60 m/s. What percent of its mechanical energy was lost to air resistance? -the answer is 48% 2. A motor uses 5500J to lift a 35kg object a vertical distance of 12m. What is the efficiency of the ...
June 17, 2012 by lenny

physics
A chair lift takes skiers to the top of a mountain that is 320 m high. The average mass of skiers complete with equipment is 85 kg . The chair lift can deliver three skiers to the top of the mountain every 36 s Determine the power required to carry out this task If friction ...
April 30, 2012 by Melissa

physics
A 200 kg piano is suspended by a rope from a high building. (Assume the mass of the rope is zero). a. What is the weight of the piano? b. What is the tension of the rope? c. The piano is now hoisted up with an initial acceleration of 1 m/s. What is the minimum value of the ...
March 14, 2014 by Swastika

Physics
A 3.30-kN piano is lifted by three workers at a constant speed to an apartment 28.8 m above the street using a pulley system fastened to the roof of the building. Each worker is able to deliver 197 W of power, and the pulley system is 75.0% efficient (so that 25.0% of the ...
June 17, 2012 by Kristin

physics
a mechanic uses a chain and bloc pulley to lift a 875-kg engine 4.0 m to the top of the garage. the downward force on the chain over the 4.0 m distance is 5.0 x 10^4 N. a)calculate the work done in raseing the motor b)how much useful work was done c)what is the inefficiency of...
January 12, 2013 by tyler

physics
A piano is being moved into a concert hall up a 15m ramp that has a final height of 1.5m. To help with the weight, a rope has been tied between the piano and a counterweight through two pulleys. One at the top of the ramp and the other off the edge of the loading dock so that ...
December 20, 2012 by christine

physics
A piano of mass 800 kg is hoisted up to a 15 meter height. Just then, the rope breaks with the piano plummeting down to the ground. What is the velocity of the piano when it strikes the ground?
November 3, 2011 by pakilina

Physics
A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over the 4.00 m distance is 5.00 x 10^4 N. A) Calculate the work done in raising the motor B) How much useful work was done? C) What is the efficiency of ...
January 16, 2014 by Holly

physics
A certain elevator car has mass 2200 kg and is lifted by cables driven by an electric motor. The efficiency of the lift system (motor, pulleys, cable, etc.) is 67.0%. As the elevator car moves at constant speed of 3.0 m/s it encounters 220N of friction coming from its tracks. ...
December 1, 2013 by Bob

physics
a40w motor conectedto a 9v battery can lift an object 40m in 10s
March 21, 2013 by jorge

science
A 750w motor might also be rated as a 0.5horsepower motor 1 horsepower motor 2 horsepower motor 10 horsepower motor
March 31, 2014 by snow

Spanish 8-Please check
1.Which one is correct? Tocamos el piano. Jugamos el piano. Tocamos al piano. I think it is the Tocamos el piano because if it was jugamos then it would have to have "al" in front of piano. Piano is masculine so it couldn't be Tocamos al piano. 2. Which is correct? Toco las ...
April 11, 2011 by Melissa

Physics - pulley
A construction crew pulls up an 87.5-kg load using a rope thrown over a pulley and pulled by an electric motor. They lift the load 15.5 m and it arrives with a speed of 15.6 m/s having started from rest. Assume that acceleration was not constant. I have done the problem but am...
June 3, 2011 by Casey

physics
A crane lifts a concrete hopper of mass 370 kg from the ground to the top of a 38 m building that is under construction. The hopper moves with a constant speed during the lift. The power rating of the crane motor is 8.2 kiloWatts. How long does it take for the crane to lift ...
February 20, 2011 by anonymous

physics
The largest grand piano in the world is really grand. Built in London, it has a mass of 1.25 103 kg. Suppose a pianist finishes playing this piano and pushes herself from the piano so that she rolls backwards with a speed of 1.4 m/s. Meanwhile, the piano rolls forward so ...
November 27, 2012 by Anonymous

physics
The largest grand piano in the world is really grand. Built in London, it has a mass of 1.25 103 kg. Suppose a pianist finishes playing this piano and pushes herself from the piano so that she rolls backwards with a speed of 1.4 m/s. Meanwhile, the piano rolls forward so ...
November 27, 2012 by Anonymous

physics
The largest grand piano in the world is really grand. Built in London, it has a mass of 1.25 103 kg. Suppose a pianist finishes playing this piano and pushes herself from the piano so that she rolls backwards with a speed of 1.4 m/s. Meanwhile, the piano rolls forward so ...
November 27, 2012 by Anonymous

physics
A small motor runs a lift that raises a load of bricks weighing 916 to a height of 12.7 in 28.2 .
November 21, 2011 by Anonymous

Electricity
A motor running at its rated power provides 2.6 lb-ft torque at its rated speed of 2020 rpm. The motor draws 5.6-A from a 230-V supply at a phase angle of 37 degrees. Determine the following: The horsepower delivered by the motor, The efficiency of the motor.
January 24, 2008 by Nick

Physics Grade 11
I need Help answering this question what equations do i use from Newton's Law and how to solve it. I Have a test on Wednesday and im lost please help.!!! A piano is to be slid across the floor.IT had a mass of 450 kg. A) Calculate the normal force supporting the piano. B)If ...
November 8, 2010 by Hena

science
How long would it take a 20.0 hp motor to lift a 1,000.0 kg crate from the bottom of a freight's hole deck(40.0m)?
October 10, 2007 by Sarah

Managerial Accounting
a ski company plan to add five new chai500 a day for the lift. the lifts cost 2 million and to install the lift cost another 1.3 mil.The lift will allow 300 additional skiers on the slopes but only 40 days a year will be needed. The company will sell 300 lift tickets on those ...
August 23, 2009 by Anita

physical science
How long would it take a 20.0 hp motor to lift a 1,000.0 kg crate from the bottom of a freighter's hold to the deck (40.0 m)?
June 23, 2011 by t

physics
A small motor draws a current of 1.76 A from a 110 V line. The output power of the motor is 0.20 hp. (a) At a rate of $0.060/kWh, what is the cost, in cents, of operating the motor for 4.0 h? (b) What is the efficiency of the motor? for (a) i am doing IV*hours*price and its ...
March 14, 2011 by julie

English
1. When I entered the room, he played the piano. 2. When I entered the room, he started to play the piano. (Is #1 grammatical? Is #1 similar to #2?) 3. When I entered the room, he had been playing the piano for an hour. 4. When I entered the room, he was playing the piano. (...
June 13, 2011 by rfvv

More Algebra
Eve and Jason have an exercise routine that they do together three days a week. Together, they can lift 225 pounds. a) If Eve can lift 113 pounds,how many pounds can Jason lift? b). If Eve can lift 87 pounds, how many pounds can Jason lift? c) What expression can be used to ...
October 2, 2011 by Jab

Physics
If a piano tuner hears 3 beats each second when listening to a 8 Hz tuning fork and a single string on the piano which is of higher frequency.. What is the frequency of the single string from the piano?
March 20, 2014 by Paul

math
A piano manufacturer has a daily fixed cost of $1200 and a marginal cost of $1500 per piano. Find the cost C(x) of manufacturing x pianos in onde day. Use your function to answer the following questions: a)On a given day, what is the cost of manufacturing 3 pianos? b)What is ...
September 15, 2012 by jack

physics
The electrical motor runs on a D.C source of emf E and internal resistance r. Show that power output of the motor is max where current drawn by the motor is E/2r.
March 16, 2010 by Edwin

Physics
The third floor of a house is 9 m above the street level. How much work (in kJ) is required to lift a 700-kg piano to the third-story level?
July 3, 2012 by Bruin

Physics
The resistance of the wire in the windings of an electric starter motor for an automobile is 0.0190 Ohms. the motor is connected to a 12 V battery. What current will flow through the motor when it is stalled?
February 20, 2011 by Kara

Physics
An electric motor has 72 turns of wire wrapped on a rectangular coil, of dimensions 3cm by 4cm. Assume that the motor uses 14A of current and that a uniform 0.5T magnetic field exists within the motor. 1)What is the maximum torque delivered by the motor? Answer in units of Nm...
April 7, 2007 by Belle

algebra
In 1920 the record for a certain race was 46.5 seconds. in 1980 it was 45.3 seconds let R(t) = the record in the race and t=the number of years since 1920 R(t) = 46.5 - t*0.02 what is the predicted record in 2003? 44.84 what is the predicted record in 2006?44.78 what year will...
July 24, 2011 by kelly

phy
A 175 kg horizontal beam is supported at each end. A 300 kg piano rests a third of the way from one end. What is the vertical force on the support closest to the piano? N What is the vertical force on the support furthest from the piano? N
October 22, 2010 by ami

history/lit
The 1920's is associated with the development of many new freedoms; it was a time of restrictions as well. Examine the 18th amendment and prohibition in the 1920's. What was the reasoning and who were the key supporters behind a 'dry' United States? ---Need help answering this...
June 15, 2009 by mysterychicken

Physics
Please Help!!!: How many seconds will it take a 12hp motor to lift a 1500lb elevator at a distance of 9ft? what was the average velocity of the elevator?
October 17, 2010 by Aikawa

physics
I have to build a mini solar car for a school project and i have three solar cells that i bought. whenever i hook up the solar cells i get a reading between 1.5-1.8 volts, but when i hook it up to the motor it wont start it. According to the box the motor only requires 1.5v ...
May 6, 2007 by Matt

physics
a 1.00 x 10 W electric motor is used to life a 955 kg object vertically 25.0 m at a constant velocity. How much time does it take to lift the object.
December 2, 2012 by Teresa

physics simple harmonic motion
When tuning a piano, a musical play a note that should be at 110 Hz while at the same tapping 110 Hz tuning fork and holding it next to the string. He hears beats at 4 Hz. (A) state and explain what frequencies the piano could be producing (b) explain how the musician now ...
January 21, 2012 by Abdela said yimer

English
1. If anyone doesn't find me, I will die. 2. If no one finds me, I will die. (Are both grammatical?) 3. You have to practice playing the piano. 4. You have to practice to play the piano. 5. You have to practice the piano. (Which ones are correct from #3 to #5?)
September 4, 2009 by John

math
Eric plays piano and guitar. He practiced on both instruments for a total of 8 hours this week. He practiced the piano for 3/4 of that time. For how many hours did Eric practice the piano this week?
March 11, 2013 by Ms.Vargas

PHYSICS
A mover hoists a 200 kg piano from the ground to a height of 5 m using a single pulley. What was the change in the piano's energy?
June 6, 2012 by Anonymous

English
1. I won the piano contest. 2. I got the piano contest. 3. I won first place in the piano contest. 4. I got first place in the piano contest. (Are they all grammatical? Are they the same?)
June 22, 2013 by rfvv

A & P
Trace the anatomical pathway of the neural signal that must be sent from the primary motor area of the brain to the appropriate muscles of the arm and shoulder in order to lift a glass of water to drink.
March 23, 2011 by Anonymous

Math
Use the following information to determine the number of people in each region of the Venn Diagram 174 people were asked which of these instruments that they could play: Piano, Drums, or Guitar. 33 people could play none of these instruments. 9 people could play all three of ...
October 10, 2012 by Shyanne

medical billing
8 year old male hemophiliac is admitted with acute blood loss anemia following uncontrolled bleeding. he was given 4 units of packed red blood cells via the peripheral vein. while in the hospital he also received his regular preventive infusion fo clotting factors. which of ...
July 25, 2013 by Anonymous

math
the perimeter of the rectangular shaped base of a piano is 16 feet. what are all the possible dimensions of the piano using only whole numbers?
December 16, 2010 by alaysia jones

math
If evelyn practices the piano for 45 mins every day, how many minutes does she practice the piano in one year? Please solve. Thx
November 26, 2012 by stephie 23

PHYSICS
Using the motor principle explain why a motor is rotating in the direction indicated. I seriuosly have no idea, please help explain this theory to me. PHYSICS - drwls, Saturday, February 6, 2010 at 2:15pm To help you answer that question, I'd need a figure that shows what kind...
February 6, 2010 by Sarah

Algebra 1
In 1920 the record for a certain race was 45.1 sec. In 1960, it was 44.3 sec Let R(t)-the records in the race(t)=the numbeer of years since 1920. Thank you for your help.
January 27, 2011 by Esther

Physics
The angular velocity of a process control motor is (21−12t2) rad/s, where t is in seconds. A)At what time does the motor reverse direction? I got 6.5s B) Through what angle does the motor turn between t =0 s and the instant at which it reverses direction? Can you help ...
May 5, 2014 by Lisa

Physics
The angular velocity of a process control motor is (21−12t2) rad/s, where t is in seconds. A)At what time does the motor reverse direction? I got 6.5s B) Through what angle does the motor turn between t =0 s and the instant at which it reverses direction? Can anyone do B
May 5, 2014 by HELP PLZ

college chemistry
A volume of 0.285 L of a gas at STP weighs 0.537 g. Calculate the molar mass of the gas (1)(0.285) = n(0.0821)(273). .0036 is this correct?
October 17, 2010 by Melissa

Science URGENT help please
Piano movers hoist a 200 kg piano 10 m high in 30 s using a rope and simple pulley. What is their power output? (Points : 1) 70 W 700 W 7,000 W 6 10^5 W
April 16, 2014 by Phil

Math
17.Which roller coaster has the greatest lift height Top Thrill Dragster 18.What is the median lift height for the roller coasters lifted? Round to the nearest tenth. Not sure for this one 19.Arrange the given roller coasters from least to greatest lift height -20,-8,0,16,60,...
April 30, 2013 by Jerald

Physics
a 330 kg piano slides 3.6 m down a 28 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. the effective coefficient of kinetic froction is 0.4. calculate a) the force exerted by the man, b)the work done by the man on the ...
April 25, 2009 by Nat

physics
a 330 kg piano slides 3.6 m down a 28 degree incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. the effective coefficient of kinetic froction is 0.4. calculate a) the force exerted by the man, b)the work done by the man on the ...
April 27, 2009 by Nat

physics
A man pushes on a piano with mass 200 {\rm kg} so that it slides at constant velocity down a ramp that is inclined at 10.5^\circ above the horizontal floor. Neglect any friction acting on the piano.
February 23, 2012 by lkn

physics
A 120-V motor has mechanical power output of 2.20 hp. It is 92.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor (A) (b) Find the energy delivered to the motor by electrical transmission in 2....
September 5, 2013 by priya

physics
A 120-V motor has mechanical power output of 3.20 hp. It is 81.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor. Answer: 24.6A (b) Find the energy delivered to the motor by electrical ...
May 2, 2011 by iva

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