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July 30, 2014

Search: A 18.0 V battery is connected to a 4.10 µF capacitor. How much energy is stored in the capacitor?

Number of results: 2,650

micro
hi, i need some help with my econ homework. i know what the law is, basically that more isn't always better. i just need to know how to tell if it applies to a labor equation. my problem goes like this. F(K,L) = K + 10L, write expressions for marginal product of labor and ...
February 23, 2012 by saya

Physics
A circuit is composed of a capacitor C=3 μF, two resistors both with resistance R=69 Ohm, an inductor L=6.00e-2 H, a switch S, and a battery V=25 V. The internal resistance of the battery can be ignored . Reminder: The "L=x.xxenn H" notation means "L=x.xx×10nn H". (The ...
June 17, 2013 by AAA

chemistry
Both aluminum and zinc are used in "air batteries", those that use oxygen from teh air as an oxidizing agent. These reactions take place in one type or the other: 4Al(s) + 3O2(g) --> 2Al2O3(s) 2Zn(s) + O2(g) --> 2ZnO(s) a) Calculate DeltaG^o for these reactions at 25 ...
May 1, 2010 by Anonymous

physics
In the process of electrolysis, electrical power is used to separate water into oxygen and hydrogen molecules via the reaction: H2O --> H2 + ½O2 This is very much like running a hydrogen fuel cell in reverse. We assume that only the activation potential for the hydrogen ...
December 21, 2013 by Donald

physics
A 9.10-kg hanging object is connected by a light, inextensible cord over a light, frictionless pulley to a 5.00-kg block that is sliding on a flat table. Taking the coefficient of kinetic friction as 0.203, find the tension in the string.
October 2, 2011 by Anonymous

physics
The L-shaped object in the figure below consists of three masses (m1 = 8.90 kg, m2 = 1.16 kg and m3 = 2.40 kg) connected by light rods of length L1 = 1.29 m and L2 = 1.86 m.What torque must be applied to this object to give it an angular acceleration of 1.46 rad/s2 if it is ...
April 14, 2013 by Anonymous

math
A diagram shows a straight line graph of In y against x,passing through the point (0,2) and having gradient -3/2 . The variables x and y are connected by the equation y=pq^x ,where p and q are constants Find (i)the value of p and of q ,to one decimal place (ii)the equation ...
August 8, 2013 by Claudia

Physics +2
A horizontal force of 600 N pulls two masses 10Kg and 20k lying on a frictionless surface Connected by a light string.what is the tension in the string? Does the answer depend on which mass end the pull is applied?
August 17, 2013 by sasikanth

Physics
A 8.90-kg hanging object is connected by a light, inextensible cord over a light, frictionless pulley to a 5.00-kg block that is sliding on a flat table. Taking the coefficient of kinetic friction as 0.150, find the tension in the string.
September 20, 2013 by Anonymous

physics
Two blocks are connected by a light string that passes over a massless, frictionless pulley as shown. The coefficient of friction between the 4kg block and the surface is 0.4. Find the acceleration of the system and the tension in the string.
April 17, 2014 by michelle

physics
A light bulb, after it has reached its operation temperature, is connected across a potential difference of 120V while 0.5A of current passses through it. What is the resistance of the light bulb?
September 28, 2009 by joh

General Physics
A 0.40 - kg object connected to light spring with a force constant of 19.6 N/m oscillates on a frictionless horizontal surface. If the spring is released from rest, determine the maximum speed of the object.
November 12, 2009 by Ellen

Physics
Two capacitors are connected in parallel as shown above. A voltage V is applied to the pair. What is the ratio of charge stored on C1 to the charge stored on C2, when C1 = 1.5C2 ? how do you do this? ( The answer is 3/2) Thanks for helping ; ) I appreciate that
February 4, 2011 by Amanda C.

Tamucc
A 51kg object connected to a spring of 31N/m spring constant oscillates on a horizontal, frictionless surface with amplitude of 5cm. Find the speed of the object when when its position is 3cm.
July 7, 2011 by John

calc
The wheels are connected BT a belt. One wheel has a radius of 10inches and is rotating 40rpm. If the other wheel has a radius of 6inches, what is its angular velocity? Is 200rev/3min correct?
April 28, 2012 by ALISON

Physics
Two blocks rest on slopes of unequal angles, connected by a rope passing over a pulley. If the blocks equal masses, will they remain at rest? Why? Neglect friction.
October 14, 2012 by Anthony

physics
I am having a bit of trouble with this one. A safety harness is connected to a cable with a report breaking stress of 800MNm-2. What mass could be hung from a harness if the diameter of the cable was 6mm?
October 19, 2013 by samuel

Physics
Does more current “flow” out of a battery than into it? Does more current “flow” into a lightbulb than out of it? Explain.
August 18, 2013 by Antoine

physics
a positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread. after being charged once. the plates are disconnected from the battery. describe the behavior of the ball. (the plates are not touching nothing and the ball ...
December 1, 2010 by maria

website
What is the website that is used to do the diagrams. Its like circles connected to circles in this diagram.
February 22, 2013 by Celest

chem, grade 12
I'm having a hard time with this... ...I need help. I want to learn... Question 1) The electrolyte from a car battery has H2S04 (aq) concentration of 4.5 per mol and a density of 1.18g per mol. What is the percentage by mass of H2S04 in the electrolyte? ..I have abt four more ...
January 27, 2007 by atriletz

physics 2
Two identical positive charges are placed 15 cm apart and the magnitude of the electric force between them is 5.4 Newtons. They then exchange charge (one charge loses some electrons and the other gains the same amount of electrons), but they both still remain positive. After ...
January 18, 2013 by Jessica

statistics
The numbers of hours of life of a torch battery is normally distributed with a mean of 150 hours and standard deviation of 12 hours. In a quality control test, two batteries are chosen at random from a batch. If both batteries have a life less than 120 hours, the batch is ...
January 26, 2011 by Anonymous

Physics
A 50 ohm resistor is connected in series with a 0.2 H inductor, a 40 microFarad capacitor, and an AC Generator yielding 120 v (RMS) at 60 Hz. Find A) the inductive reactance b) the capacitive reactance and c) the total reactance, the impedance Z, and the current in Circuit, I.
May 10, 2013 by Sandra

Physics
A 1.5 kg block is connected by a rope across a 50-cm-diameter, 2.0 kg, frictionless pulley. A constant 10 N tension is applied to the other end of the rope. Starting from rest, how long does it take the block to move 30 cm?
November 8, 2009 by Sandhu

Physics
A model electric train requires 6 V to operate. If the primary coil of its transformer has 240 windings, how many windings should the secondary have if the primary is connected to a 120 V household circuit?
November 10, 2009 by Lauren

physics
There are two conducting spheres of different sizes, both with the same negative charge. If they are connected with a conducting wire, the charge would therefore flow from the smaller to the larger. Am I correct? Thanks!
March 7, 2010 by Joe

physics - URGENT
Two blocks are connected by a heavy uniform rope with a mass of 4.00 . The topblock is 6.00kg, the bottom block is 5.00kg with an applied upwardforce of 200 N. What is the tension at the midpoint of the rope?
April 10, 2011 by mike

English
When a the subject of sentence has 2 or more nouns or pronouns connected by “or” or “nor,” the verb must agree with the noun or pronoun that appears closest to the verb in the sentence. Would this be true or false?
June 2, 2011 by Diane

physics
Three blocks of masses M1=26kg,M2=38kg and M3=41kg are connected by 2 strings over 2 pulleys.Friction is negligible. 1. Determine the magnitude of acceleration and 2. the magnitude of the tension in each of two strings
October 24, 2011 by rajesh

Physics
Two boxes of fruit on a frictionless horizontal surface are connected by a light string as in the figures below, where m1 = 15 kg and m2 = 17 kg. A force of 58 N is applied to the 17 kg box. (a1) Determine the acceleration of the boxes (b) the tension of the string (c)
September 30, 2012 by Anonymous

physics
a block of mass m=0.9 kg is connected to a spring of force constant k= 775 N/m on a smooth horizontal surface. plot the potential energy of the spring from x= -5 cm to x= 5 cm. determine the turning points of the block if its speed at x= 0 is 1.2 m/s.
October 7, 2012 by Mima

Grammar
When a the subject of sentence has 2 or more nouns or pronouns connected by “or” or “nor,” the verb must agree with the noun or pronoun that appears closest to the verb in the sentence. A) True B) False I answered A
November 28, 2012 by Marie

Physics,
A block of mass 0.25 kg is connected to a spring with spring constant 35 N/m. The block is oscillating on a frictionless horizontal surface. Its speed as it passes through its equilibrium position is 1.04 m/s. What's the total energy of the system?
January 8, 2013 by Oly

Physics
A piece of Nichrome wire has a radius of 8.0 10-4 m. It is used in a laboratory to make a heater that dissipates 2.00 102 W of power when connected to a voltage source of 120 V. Ignoring the effect of temperature on resistance, estimate the necessary length of wire.
September 7, 2007 by Mary

Algebra
4. Does the following set of coordinations make a horizontal, vertical, or diagonal line when connected with a straight line? (4, 5) (2, 5) 5. Positive slope indicates a _____ process. a. steady b. gaining c. losing d. slow A? 6. The m in the equation y= mx + b represents the ...
March 31, 2010 by mysterychicken

Biology
4. Does the following set of coordinations make a horizontal, vertical, or diagonal line when connected with a straight line? (4, 5) (2, 5) 5. Positive slope indicates a _____ process. a. steady b. gaining c. losing d. slow A? 6. The m in the equation y= mx + b represents the ...
April 1, 2010 by mysterychicken

help! physics
Two masses (m1 = 532 grams, m2 = 114 grams) are connected with a rope through a frictionless pulley The ramp has an elevation angle θ = 65.3° and a coefficient of friction μ = 0.184. What are Fll and Fperpendicular for m1? What is the normal force on m1?
November 30, 2010 by Haley

Physics
A 1000 kg car pushes a 2000 kg truck that has a dead battery. When the drive steps on the accelerator, the drive wheels of the car push against the ground with a force of 4500 N. a) What is the magnitude of the force of the car on the truck? b) what is the magnitude of the ...
June 12, 2010 by Sarah

physics
i am confused with the concept when electrons flow from the negative terminal to the positive terminal of a battery then why the negative one is called lower potential and positive one higher potential while the difference in negative charges is termed as potential difference?
September 26, 2013 by help(in much need)!!!!!!!!!!!!!!!!!!!!

Economics- Micro
You have an option to hire 2 hunters. The first hunter is able to kill two deers in an hour, the other hunter is able to kill one deer in an hour. Do you, without a doubt, hire the first hunter because he has an aboslute advantage? My question is that as there is only one ...
October 4, 2007 by Samantha

micro economics
pb = 70 -0.0005qb(brand name) pp = 20-0.0002qp (private label). Marginal cost is a constant $10 per tire.quantities are measured in thousands per month and price refers to the wholesale price. marginal cost is a constant $10 per tire. american currently sells brand name tires ...
February 28, 2008 by Anonymous

chemistry
There is an apparatus that consistsw of three glass bulbs connected by small glass tubes with the stopcocks closed. Given that the temp. is 27 degrees C, what is the pressure of a gas in each glass bulb? 1L=1.79g CO2 2L=0.162g H2 3L=4.87g Ar
May 7, 2008 by katie

electrical trade theory
what r the 2 main characteristics of a shunt connected motor? http://www.answers.com/topic/direct-current-motor sorry cant find what i'm looking for. anything else? ------------------AND--------------------- COMPARE THE STARTING TORQUE OF A SHUNT AND SERIES MOTOR...
September 30, 2006 by michelle

PHYSICS
A wheel in the shape of a uniform disk of radius R and mass mp is mounted on a frictionless horizontal axis. The wheel has moment of inertia about the center of mass Icm=(1/2)mpR2 . A massless cord is wrapped around the wheel and one end of the cord is attached to an object of...
November 18, 2013 by Anonymous

Physics
draw a ciruit of 2 lamps in parllel with each other connected to a power source and an ammeter to measure the total current of the circuit and a voltmeter to measure the potential difference across the two lamps
May 9, 2010 by Kus omak

physics
The current through a light bulb connected across the terminals of a 120 V outlet is 0.25 A. At what rate does the bulb convert electric energy to light 1Your answer was incorrect, but has changed from what was graded. W
March 8, 2011 by nkechi

Physics
Two masses Ma= 2.0 and Mb= 5.0 are on inclines and are connected together by a string as shown in the figure(Figure 1) . The coefficient of kinetic friction between each mass and its incline is u= 0.30. If Ma moves up, and Mb moves down, determine their acceleration.
June 29, 2012 by Truman

physics
lets say two capacitors C1 and C2 1uF each are connected in series with a voltage source 5v. One of the capacitors C2 has an initial voltage of 1v and the other has no charge on it initially.What is the final voltages across the capacitor C2?
September 10, 2012 by Venkatarama

physics
lets say two capacitors C1 and C2 1uF each are connected in series with a voltage source 5v. One of the capacitors C2 has an initial voltage of 1v and the other has no charge on it initially.What is the final voltages across the capacitor C2?
September 10, 2012 by Venkatarama

physics
Three similar ideal cells (no internal resistances) supply current of 0.5 Ampere to a 10 Ohms resistor when they are in the parallel.How much current will they supply to the same risistor when they are connected in series aiding?
September 30, 2012 by nitz

physics
Three similar ideal cells (no internal resistances) supply current of 0.5 Ampere to a 10 Ohms resistor when they are in the parallel.How much current will they supply to the same risistor when they are connected in series aiding?
September 30, 2012 by nitz

Physics URGENT!!!
Two boxes of fruit on a frictionless horizontal surface are connected by a light string as in the figures below, where m1 = 15 kg and m2 = 17 kg. A force of 58 N is applied to the 17 kg box. (a1) Determine the acceleration of the boxes (b) the tension of the string (c)
September 30, 2012 by Anonymous

Physics URGENT!!!
Two boxes of fruit on a frictionless horizontal surface are connected by a light string as in the figures below, where m1 = 15 kg and m2 = 17 kg. A force of 58 N is applied to the 17 kg box. The acceleration of the boxes is 1.8. Find the tension in the string.
October 3, 2012 by Anonymous

science, physics
A block of mass 0.25 kg is connected to a spring with spring constant 35 N/m. The block is oscillating on a frictionless horizontal surface. Its speed as it passes through its equilibrium position is 1.04 m/s. What's the total energy of the system?
January 8, 2013 by Chase

physics
a 2.5 kg mass is connected to a spring. when a 4N is applied to the spring it compresses 2cm. if the spring is stretched and then the mass is released, what would be the period of the motion.
February 5, 2012 by john

physics
A car is hauling a 89 kg trailer, to which it is connected by a spring. The spring constant is 2100 N/m. The car accelerates with an acceleration of 0.29 m/s2. By how much does the spring stretch?
June 14, 2013 by Andrew

Chemistry
Can someone tell me if this makes any sense or if I need to start over. I am not sure if it even answers the question. Why is the benzene molecule represented as “a flat cyclohexane with a ring inside?” The benzene molecule is represented as “a flat cyclohexane with a ring ...
February 10, 2008 by Brad

physics
A 18.7 ohm and a 24.3 ohm resistor are connected parallel. A difference in potential of 41.5 V is applied to the combination. What is the equivalent resistance of the parallel circuit? Answer in units of ohm .
March 29, 2011 by maria

physics
a 20 ohm and 60 ohm resistors are connected in series to a DC generator. The voltage across the 20 resistor is 80 volts. The current through the 60 ohm resistor? A) 1.0A B) 5.0 A C) is about 1.3 A D)4.0 A E) cannot be calculated
May 28, 2012 by star

Chemistry
Choose the two half-reactions from a table of standard reduction potentials that most closely approximate the reaction that occur within the battery (Pacemaker). What is the standard voltage generated by a cell operating with these half-reactions? (i got +3.85V). The actual ...
May 7, 2011 by Jay

To Anonymous -- Sci275
Your post has been removed because it contains just the complex assignment that refers to materials to which we have no access. You also gave us no idea how you wanted us to help you. Please note and pass the word that Jiskha tutors are not connected with Axia or any other ...
April 2, 2009 by Ms. Sue

history
Janet Abu-Lughod’s 2 articles argue that from the 1000s to the 1400s, Western Europe developed an extensive urban network that connected the different cities of the continent from the English Channel to the Mediterranean Sea. Does this have anything to do with the Champagne ...
January 10, 2012 by athens

history
Describe the physical surroundings of Catal Huyuk. Check my answer The roofs were made of woven reeds and mud and were connected to one another like a honeycomb . Each dwelling contained an open hearth an oven in the wall and clearly defined sleeping area.
September 7, 2013 by Anonymous

Physics
A 90.0 kg block and a 40.0 kg block are connected by a rope that passes through two (frictionless, massless) pulleys as shown. When released, what is the acceleration of the larger block? What is the tension in the rope?
July 25, 2012 by Zac

To Laura: Research Writing
I've removed your post for two reasons. 1. You've referred to unknown materials. 2. You've given us no indication of your thinking on this complex assignment. Please note that the Jiskha Homework Forum does not do homework, nor are we connected with any school or college.
May 3, 2009 by Ms. Sue

physics
Pigeons have multiple-domain magnetite magnets within their skulls that are connected through a large number of nerves to the pigeon's brain. How does this aid the pigeon in navigation? (Magnetic material also exists in the abdomens of bees.)
May 16, 2012 by Alice

Math
LongLast Inc. produces car batteries. The mean life of these batteries is 60 months. The distribution of the battery life closely follows the normal probability distribution with a standard deviation of 8 months. As part of its testing program, LongLast tests a sample of 25 ...
April 25, 2014 by Mark

physics
Each of the four circuits in the drawing consists of a single resistor whose resistance is either R or 2R, and a single battery whose voltage is either V or 2V. The unit of voltage in each circuit is V = 10 V and the unit of resistance is R = 8 Ω. Determine (a) the power ...
February 14, 2013 by Anonymous

Physics
Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If m1 is 3.4 kg and m2 is 9.1 kg, and block 2 is initially at rest 130 cm above the floor, how long does it take block 2 to reach the floor?
September 23, 2009 by Megan

Physics
Two blocks, the first with a mass of 30 kg, and the second 10kg, are connected by a string and pulled accross a frictionless surface by a force with a magnitude of 75 N. Find the magnitude of the tension acting along the string that connects them.
January 28, 2012 by Karrie

physics
power supply has an open-circuit voltage of 39.0 V and an internal resistance of 2.00 Ù. It is used to charge two storage batteries connected in series, each having an emf of 5.50 V and internal resistance of 0.300 Ù. The charging current is to be 3.30 A.
March 6, 2012 by Anonymous

physics
Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If m1 = 3.8 kg and m2 = 9.2 kg, and block 2 is initially at rest 140 cm above the floor, how long does it take block 2 to reach the floor?
September 23, 2012 by Becky

physics
Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If m1 = 3.8 kg and m2 = 9.2 kg, and block 2 is initially at rest 140 cm above the floor, how long does it take block 2 to reach the floor?
September 23, 2012 by Becky

Physics
A 6.44 E+06 ohm resistor and a 1.00 microfarad capacitor are connected in a single loop circuit with a seat of emf of E = 2.00 V. At 6.00 s. after the connection is made, what is the rate at which energy (in joules/second) is being delivered by the seat of emf?
November 10, 2012 by andrew

Physics RC
A 6.44 E+06 ohm resistor and a 1.00 microfarad capacitor are connected in a single loop circuit with a seat of emf of E = 2.00 V. At 6.00 s. after the connection is made, what is the rate at which energy (in joules/second) is being delivered by the seat of emf?
November 11, 2012 by andrew

Physics
I am having a bit of trouble with this one. A safety harness is connected to a cable with a report breaking stress of 800MNm-2. What mass could be hung from a harness if the diameter of the cable was 6mm? Any help would be great with the formula
October 1, 2013 by Violet

physics
Expensive amplifier A is rated at 210W , while the more modest amplifier B is rated at 45W . Estimate the sound level in decibels you would expect at a point 9.0m from a loudspeaker connected in turn to each amp.
November 18, 2013 by waves

physics
The combined mass of a man and a chair suspended at the midpoint of a rope of negligible mass is 50 kilograms. The rope is connected to a weight of 4360 newtons hanging from a massless frictionless pulley. Find the angle.
January 20, 2014 by Robert

science
if you have two 5 watt bulbs connected in series and then in parellel: a) Which circuit arrangement will give you brighter bulbs? Explain your answer.... b) Which of these arrangements will allow the other bulb to continue glowing if one of the bulbs is removed?
June 29, 2009 by anonymous

Physics (Newton's laws)
Two blocks of mass 3.50 kg and 8.00 kg are connected by a massless string that passes over a frictionless pulley. The inclines are frictionless and the angles with the horizontal is 35 degrees. Find a) the magnitute of the acceleration of each block and b) the tension in the ...
February 15, 2007 by Eric (please help me)

Physics
A 5.0 kg object (m1) is connected to a 10.0 kg object (m2) by a string. If a pulling force F of 20 N is applied to the 5.0 kg object as shown, A) what is the acceleration of the system? B) what is the tension in the string connecting the objects? (Assume a frictionless surface.)
October 5, 2010 by Anonymous

physics
a 15.0 kg mass and a 2.00 kg mass are connected bya string that passes over a frictionless pulley, the 15.0 kg mass lies on a smooth inclined at 45.0 solve for the acceleration of the masses and the tension in the string
October 14, 2012 by bennie

stats
A manufacturer of automobile batteries claims that the distribution of battery life is 54 months with a standard deviation of 6 months. We take a random sample of 50 batteries. a. Find the probability that their mean life is less than 52 months. b. Find the probability that ...
July 31, 2011 by michelle

Physics Classical Mechanics`
A wheel in the shape of a uniform disk of radius R and mass mp is mounted on a frictionless horizontal axis. The wheel has moment of inertia about the center of mass Icm=(1/2)mpR2 . A massless cord is wrapped around the wheel and one end of the cord is attached to an object of...
November 14, 2013 by Anonymous

Torque and shear stress
A solid shaft of 65mm outside diameter and a hollow shaft of 85mm outside diameter are connected by 6 bolts with the mean pitch of thread being 155mm. The shear stress due to the torque on the shafts is equal to the shear stress on the bolts. a) Find the diameter of the bolts...
March 22, 2009 by Henri

Micro
Hi I have the following question - With the Estern enlargement of Europe. Danish firms can now also recruit workers from these countries. Are Danish and eastern European workers perfect substitutes? E.g. would Eastern Europeans be suitable in all job functions? I.e would the ...
August 13, 2008 by Lotta

chemistry
A 2.34L container of H2(g)at 752mmHg and 24 degrees is connected to a 3.17L container of He(g) at 717mmHg and 24 degrees. After mixing, what is the total gas pressure, in millimeters of mercury, with the temperature remaining at 24 degrees?
September 26, 2008 by tomi

random
i'm done with my hw so i was wondering, is there a specific time where the experts for different subjects come on...like Ms.Sue is on most of the time, and science experts are not on as much also, which experts are connected to literature, grammar, and so on..? thanks
February 22, 2009 by Bella

physics
A tow truck is connected to a 1500 kg car by a cable that makes a 27 degree angle to the horizontal. If the truck accelerates at 0.58 m/s^2, what is the magnitude of the cable tension? Neglect friction and the mass of the cable.
April 1, 2012 by ian

Physics
A spring, (spring constant of 400 N/m) is displaced .75 m from its equilibrium position. An 8-kg mass is connected to the spring and it is allowed to oscillate horizontally with Simple Harmonic Motion. What is the Kinetic Energy of the mass?
February 17, 2013 by Anonymous

Physics
Massless ropes A, B, C are connected together as shown and support a mass of 100 kg. Rope A is horizontal and ties to the wall, rope b is tied to the ceiling and rope c is vertical. What are the tensions in the ropes.
November 12, 2013 by Robin

Science
1. What is the direction of charge flow when charging a capacitor? When discharging a capacitor? What is your evidence? 2. Consider a circuit with a capacitor, battery, wire, and bulb. Describe the source(s) of charge during capacitor discharging. 3. Using the analogy of the ...
October 1, 2010 by Ronnie

physics
a 1 ohm resistor, a 1000 resistor and a 2000 ohm resistor are connected in parallel. The total resistance is
May 15, 2011 by Susmitha

physics
hi, if anyone could give me any sort of help on how to solve this problem i would greatly appreciate it. thank you. A 2.66 kg object placed on a frictionless horizontal table is connected to a string that passes over a pulley and then is fastened to a hanging 8.39 kg object. ...
September 13, 2009 by miranda

physics
A 2.00 kg aluminum block and a 5.20 kg copper block are connected by a light string over a frictionless pulley. They sit on a steel surface, where θ = 28.0°. Determine the sum of the magnitudes of the forces of friction acting on the blocks._____________N I don't understand ...
October 24, 2009 by blair

physics
locks A, B, C are placed in the adjacent figure and connected by ropes of neglible mass. Both A and B weigh w = 25.0 N each and the coefficient of kinetic friction between each block and the surface is 0.35. A) If Block C descends with constant velocity find atleast three ...
March 19, 2012 by Anonymous

Algebra
Need help with these-- 4. Does the following set of coordinates make a horizontal, vertical, or diagonal line when connected with a straight line? (4,5) (2,5) Answer--yes 10. Classify the number as rational or irrational: 4.126532 14. Which of the following points represent ...
April 28, 2010 by mysterychicken

Algebra
Need help with these-- 4. Does the following set of coordinates make a horizontal, vertical, or diagonal line when connected with a straight line? (4,5) (2,5) Answer--yes 10. Classify the number as rational or irrational: 4.126532 14. Which of the following points represent ...
April 28, 2010 by mysterychicken

Physics 203 ( College)
Four particles, one at each of the four corners of a square with 2.5-m-long edges, are connected by mass less rods. The masses of the particles are m1 = m3 = 2.0 kg and m2 = m4 = 7.0 kg. Find the moment of inertia of the system about the z axis.
April 4, 2011 by Kayla

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