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April 24, 2014

Search: physics, help with circuits please!

Number of results: 94,874

physics
Design some simple digital circuits based on Boolean expressions. Draw circuits that implement the following Boolean expressions using some combination of AND, OR, NOT, NAND, and NOR gates. - NOT X OR NOT Y OR Z - X OR Y OR NOT Z - NOT X AND Y OR NOT Y AND Z Write a two to ...
Wednesday, June 10, 2009 at 1:18am by Sandhya

physics
Given circuits for f and f−1, we can create classical reversible circuits Rf, R−1f, Rf−1, R−1f−1 which are shown in the following figure. (Assume that f is a bijection.)In what sequence shall we apply the above circuits in order to implement a ...
Wednesday, March 6, 2013 at 4:02am by s

physics
The figure below shows three circuits, each consisting of a switch and two capacitors, initially charged as indicated. Let qL represent the charge on the left-hand capacitor in each circuit. The switches in all circuits are then closed.
Tuesday, April 9, 2013 at 7:51pm by bryan

physics
for circuits with either an inductor or capacitor, the current gets out of phase with the voltage. for these circuits how are the frequencies of the current and voltage related?
Friday, March 9, 2012 at 9:08am by fatih

Science
What is the rule for combining resistors in series and parallel circuits( combination circuits)?
Wednesday, October 17, 2007 at 11:40pm by Jeni

science
how does an electric ciircuit work? Books have been written about electrical circuits, what kinds, specilized circuits, etc. You need to be a little more specific with your question.
Monday, April 23, 2007 at 12:40pm by garret

Statistics
An electronic product contains 32 integrated circuits. The probability that any integrated circuit is defective is 0.02, and the integrated circuits are independent. The product operates only if there are no defective integrated circuits. What is the probability that the ...
Thursday, February 20, 2014 at 7:41pm by Ashley

Circuits
In Circuits lab, we had to construct different types of operational amplifiers. The inverting and summing amplifiers produced similar output voltage to the calculated ones but were not negative. I was just wondering why they didn't reverse the sign in the experiment?
Monday, April 30, 2012 at 2:46am by Ana

Circuits
In Circuits lab, we had to construct different types of operational amplifiers. The inverting and summing amplifiers produced similar output voltage to the calculated ones but were not negative. I was just wondering why they didn't reverse the sign in the experiment?
Monday, April 30, 2012 at 10:41am by Ana

Physics
How are series and parallel circuits wired?
Monday, May 12, 2008 at 5:30pm by Kelly

physics
What are some examples of real resistors used in circuits?
Tuesday, July 19, 2011 at 9:57am by Tina

Discrete Mathematics
Consider the complete graph with 5 vertices, denoted by K5. A. Draw the graph. B. How many edges are in K5? How many edges are in Kn? C. Find an isomorphic representation (graph) of K5. Give the isomorphism mappings. D. Does K5 contain Eulerian circuits? (why?) If yes, draw ...
Saturday, August 3, 2013 at 11:41am by Joy

Physics URGENT
I did a lab on DC circuits, and we calculated the resistance of multiple resistors in parallel. Resistance of Resistor 1 & 2 = 1000 +/- 5% so R1 =1000+/- 50 R2= 1000 +/1 50 i need to calculate R using the equation... R= 1/R1 + 1/R2 I am confused as to what the uncertainty ...
Monday, February 8, 2010 at 9:55pm by Katelynn

Physics
Why is parallel circuit brighter compared to series? ( Only one bulb is present in both circuits) Thanks :)
Sunday, August 26, 2012 at 7:02am by Tiffany

Circuits/physics
For the element shown below, v(t)=1/2tVolts and i(t) = 12t-4t^2 Amps. (a) Find the instantaneous power p(t) as a function of time. + v(t) - |------| -----| |----- |------| i(t)----->
Sunday, August 23, 2009 at 8:21pm by Bobby

Math!!
Christmas lights that stay on when one bulb burns out are wired as parallel circuits. Resistors can be used with parallel electrical circuits to restrict the current flow and produce heat. If the first resistor (R1) = 20 Ohms, the second resistor (R2) = 30 Ohms and the ...
Sunday, March 3, 2013 at 9:54pm by Urgent math help!!

mathematica
Christmas lights that stay on when one bulb burns out are wired as parallel circuits. Resistors can be used with parallel electrical circuits to restrict the current flow and produce heat. If the first resistor (R1) = 20 Ohms, the second resistor (R2) = 30 Ohms and the ...
Sunday, March 3, 2013 at 10:23pm by Please Urgent Urgent! math help!!

math
A calculator requires a keystroke assembly and a logic circuit. Assume that 83% of the keystroke assemblies and 92% of the logic circuits are satisfactory. Find the probability that a finished calculator will be satisfactory. Assume independence of keystroke assemblies and ...
Thursday, September 24, 2009 at 4:16pm by jessica

math
A calculator requires a keystroke assembly and a logic circuit. Assume that 83% of the keystroke assemblies and 92% of the logic circuits are satisfactory. Find the probability that a finished calculator will be satisfactory. Assume independence of keystroke assemblies and ...
Thursday, October 1, 2009 at 11:02pm by Aleah

College Physics
In ordinary laboratory circuits, charges uC (microcoulomb) and nC (nanocoulomb) range are common. How many excess electrons must you add to an object to give it a charge of (a) -2.50 uC (b) -2.50 nC.
Monday, January 21, 2008 at 12:22pm by Jen

Physics- Circuits
At time t=0, a potential difference of 475 V is applied to a coil with an inductance L=0.642 H and a resistance R=36 ohms. How long does it take to reach 20 percent of maximum energy in the inductor?
Saturday, April 12, 2008 at 5:09pm by Bobby

about Engineering
Electronic and Communication Engineering is mainly Mathematical analysis, implemented in practical circuits. You have to understand higher forms of math, and think in those terms. You have to understand the imperfect models used for systems analysis. You have to understand ...
Thursday, May 24, 2007 at 6:41am by bobpursley

Electronics, Physics, Circuits
Help!! problem about capacitance and inductance... please help me... god bless u all... 1.) A capacitance of 2.0 micro-Farad with an initial charge Qo is switched into a series circuit consisting of a 10.0 ohms resistance. Find Qo if the energy dissipated in the resistance is ...
Friday, October 23, 2009 at 4:00am by Huck

science
what does p.c.b stand for when your working with circuits?
Wednesday, October 1, 2008 at 1:58pm by zazi

Physics
I'm totally confused and this is due Monday- We're dealing with electrical circuits and I have to construct a circuit with resistors of 10 Ohms, 20 Ohms, 30 Ohms and 20 Ohms. The total resistance has to be 42 Ohms-Can someone direct me how to even begin to draw this-I know ...
Saturday, March 26, 2011 at 6:15pm by Aubrey

Physics - Circuits
Theres a circuit wired in series that has 4 resistors. 1) 10 ohms 2) 6 ohms 3) 1 ohms 4) 2 ohms Find the potential difference across the 10ohm resistor. Answer in units of V What exactly am i supposed to do to calculate this?
Tuesday, February 14, 2012 at 7:48pm by Anonymous

electricity
closed circuits allow current to flow. b b
Tuesday, August 23, 2005 at 8:55pm by bobpursley

French
how would you say "the wire through which the electric current flows." wouold it be, Le fils ca le courant electrique couler a travers. Load(as in electricity): A device that transforms electrical energy into other forms of energy. is it, "Charge: un appareil ca transformer l'...
Saturday, May 10, 2008 at 6:46pm by Slappy

Science - Electric Circuits
A __________is the flow of _________ along a path?
Tuesday, March 11, 2008 at 7:26pm by Evan

Physics
Hey all. I have to find Thevenins UTHEV and RTHEV, which can replace the circuit found here: img24.imageshack.us/img24/1723/thevenin.jpg I can do it for small circuits, but this one confuses me a bit. Hope you can get me goig. Thank you very much.
Saturday, March 14, 2009 at 6:33pm by Muusen

Science
Can you advise me on how to draw electrical circuits for equipment in my room such as my tv and stereo. Thanks
Monday, October 12, 2009 at 1:43pm by Lewis

French/Science
I know i posted this already but no One really answered how would you say "the wire through which the electric current flows." wouold it be, Le fils ca le courant electrique couler a travers. Load(as in electricity): A device that transforms electrical energy into other forms ...
Saturday, May 10, 2008 at 11:47pm by Slappy

Physics help please!
Hi all. I posted earlier but I'm still stuck on part of this problem. I thought that statements 2 and 3 were correct below. But I got the problem wrong. Any help would be great! Can the voltage across any of the three components in the R-L-C series circuit ever be larger than ...
Saturday, March 3, 2012 at 9:26am by Jim

Physics circuit help please!
Hi all. I posted earlier but I'm still stuck on part of this problem. I thought that statements 2 and 3 were correct below. But I got the problem wrong. Any help would be great! Can the voltage across any of the three components in the R-L-C series circuit ever be larger than ...
Saturday, March 3, 2012 at 4:28pm by Jim

current physics
when dealing with circuits, and you say "the voltage across the battery" and "a current through the battery" what do the words across and through mean.
Thursday, February 5, 2009 at 2:34am by Anonymous

Physics
Your lab partner says that a battery provides not a source of constant current, but a source of constant voltage. Do you agree or disagree and why? Also I am really confused with series and parallel circuits like when voltage, current, and resistance increase and decrease
Saturday, April 14, 2012 at 3:06pm by rebekah

Electronics/Circuits
Just a simple one... which symbol should I use to represent a strain gauge on circuit diagram? Thanks
Sunday, May 11, 2008 at 1:00pm by Jake

circuits
in a parallel RLC circuit you have L=100mH and i= inductor current i=50e^(-4000t)-10e^(-5000t) mA how do you find R and C??
Monday, March 23, 2009 at 6:11pm by alice

Electrical Circuits
find the number of free electrons in a copper conductor having a diameter of 0.064 in. and a length of 1000ft.
Sunday, November 20, 2011 at 1:29am by Marc Eugene Adriano

physics-series and parellel circuits
I'll try to explain the schmatic drawing... a 120V battery, total of 12A, leads into a 8ohm resistor (R1), then breaks off into two parallel lines, R2 and R3. the resistance is unknown in R2, and in R3 the resistance is 3 ohms. I need to find the Amperage in R1,R2 and R3 as ...
Sunday, May 20, 2012 at 5:01pm by Dav e

Physics
I am having some problems trying to figure this out. Series circuits I have a "d" battery, a battery holder, 3 different resistors, and a multimeter. How do I put the resistors into a series cicuit? And when I use the multimeter, does it need to be set on ohms or volts? Also, ...
Monday, October 15, 2007 at 8:08pm by Soly

circuits
If a series RLC circuit has R = 25 ohm, XL = 50 ohms, and XC = 30 ohms, what will be the total impedance?
Thursday, May 30, 2013 at 2:57am by Adam

circuits
Determine the gain in dB for a filter that has an output power of 4.9 W and an input power of 3.6 mW.
Thursday, May 30, 2013 at 2:58am by Adam

physics, help with circuits please!
Can the voltage across any of the three components in the R-L-C series circuit ever be larger than the maximum voltage supplied by the AC source? That maximum voltage is 50 volts in this situation. Also, does Kirchoff's loop rule apply to this circuit? In other words, is the ...
Thursday, March 1, 2012 at 7:57pm by Jim

electrical
The minimum size of electrical cable recomended for use inpower circuits by the NEC in adomestic installation is
Saturday, October 31, 2009 at 9:57pm by Brannico

Physics
Two circuits (the figure below) are constructed using identical, ideal batteries (emf = E ) and identical lightbulbs (resistance = R). If each bulb in circuit 1 dissipates 4.00 W of power, how much power does each bulb in circuit 2 dissipate? Ignore changes in the resistance ...
Thursday, February 16, 2012 at 2:36pm by jason

Physics- Circuits
In a series RCL circuit the generator is set to a frequency that is not the resonant frequency. This nonresonant frequency is such that the ratio of the inductive reactance to the capacitive reactance of the circuit is observed to be 5.53. The resonant frequency is 220 Hz. ...
Sunday, February 24, 2013 at 3:55pm by Please HELP

Physics
Two circuits (the figure below) are constructed using identical, ideal batteries (emf = E ) and identical lightbulbs (resistance = R). If each bulb in circuit 1 dissipates 4.00 W of power, how much power does each bulb in circuit 2 dissipate? Ignore changes in the resistance ...
Thursday, February 16, 2012 at 3:49pm by jason

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 ...
Thursday, February 14, 2013 at 6:02am by Anonymous

circuits
when a parallel 5k ohm resistor and a 25k ohm resistor have a 10v supply, what is the total power loss?
Tuesday, March 19, 2013 at 10:37pm by Anonymous

science
There are three sources of resistance in a parallel circuit. Two of them are rated at 20 ohms, the other at 10 ohms. What is the circuits total resistance?
Monday, July 5, 2010 at 7:22pm by teresa

Circuits
How do I design a low pass filter for an Fc = 4000 Hz and a high pass filter for Fc =2000 Hz?
Monday, April 9, 2012 at 11:05pm by Heather

physics
the table below shows the values of the resistance, capcitive reactance and inductive reactance for five RCL circuits. in which circuit will the voltage lead the current? Resistance capacitive inductive reactance reactance a)50 ohm 288ohm 244ohm b)120 ohm 58 ohm 18 ohm c)...
Sunday, May 2, 2010 at 9:35am by seema

circuits
A string of five series resistors is connected across a 20 v battery. Zero volts are measured across all the resistors except the second one. What can be wrong with this circuit?
Thursday, May 30, 2013 at 2:56am by Adam

Circuits Problem (Physics)
h t t p ://img266.imageshack.us/my.php?image=circuit2ru6.png Given the circuit above: a) Solve for unknown currents. b) What is the potential difference between points a and b? c) If both batteries start with 20 A*h of charge, how long does it take the first of the batteries ...
Saturday, April 12, 2008 at 5:29pm by Eileen

optical circuits
Two 1-km fibers are spliced together. Each fiber has a 5-dB loss, and the splice adds 1 dB of loss. If the power entering is 2 m W, then how much power is delivered to the end of this combined transmission line?
Saturday, August 31, 2013 at 10:06pm by bree

Physics
In the absence of a nearby metal object, the two inductances (LA and LB) in a heterodyne metal detector are the same, and the resonant frequencies of the two oscillator circuits have the same value of 510.0 kHz. When the search coil (inductor B) is brought near a buried metal ...
Thursday, March 21, 2013 at 3:09pm by Elizabeth

Physics
In the absence of a nearby metal object, the two inductances (LA and LB) in a heterodyne metal detector are the same, and the resonant frequencies of the two oscillator circuits have the same value of 580.0 kHz. When the search coil (inductor B) is brought near a buried metal ...
Thursday, April 11, 2013 at 2:54pm by Anonymous

Science
What are fuses and why do they come in different sizes? Fuses are devices placed in electrical circuits as protection for those circuits. They consist of small pieces of wire, sometime as ribbons, and are placed in series with the circuit so that the current passing through ...
Thursday, September 28, 2006 at 1:37pm by Bethan

Physics
Could some one tell m if this is right? 1)Does currend flow through a resistor or across a resistor in a series circuit? THROUGH 2) Is a voltage establishes through a resistor or across ? ACROSS PARALLEL CIRCUITS 1)there is a voltage drop of 6volts across each 2- resistor the...
Wednesday, March 25, 2009 at 7:55pm by joshua

circuits
a parallel RLC bandpass circuit with C=10nF and Q=10 has a center frequency of 500 krad/s. Find R,L and the two cutoff frequencies. Can you design this circuit using a cascade connection of two first-order filters seperated by a follower?
Monday, April 20, 2009 at 10:59pm by alice

circuits
For the transfer function Tv(s)=[10(s+5)(s+20)]/[(s+1)(s+100)] is this a low-pass, high-pass, bandpass or bandstop function? estimate the corner frequency(ies) estimate the passband gain what is the output if v1(t)=10cos(1000t+45deg) V??
Monday, April 20, 2009 at 10:54pm by alice

college
A process for producing electronic circuits has achieved very high yield levels. An average of only 10 defective parts per million is currently produced. 1. What are the upper and lower control limits for a sample size of 100? 2. Recompute the upper and lower control limits ...
Wednesday, December 8, 2010 at 4:01pm by jackie

Math
A process for producing electronic circuits has achieved very high yield levels. An average of only 10 defective parts per million is currently produced. 1. What are the upper and lower control limits for a sample size of 100? 2. Recompute the upper and lower control limits ...
Thursday, December 9, 2010 at 9:27am by jackie

Introduction to Electricity and Circuits
A light bulb is wired in series with a 142 resistor, and they are connected across a 120 V source. The power delivered to the light bulb is 22.3 W. What are the two possible resistances of the light bulb?
Sunday, February 6, 2011 at 10:28pm by Jiji

Circuits
I want to know why is it that a voltage in a capacitor cant change instantaneously and why the current in an inductor cant change instantaneously either. Also, a capacitor stores energy, like a battery, right? Why is it that it can't be used to power, say, and electric train ...
Saturday, March 10, 2012 at 1:40am by Tina

computers
which set of terms below correctly pairs a generation of computers with key innovation associated with it? a. 2nd generation/ intergrated circuits b. 3rd generation/programming languages c. 4th generation/ operating systems d. 5th generation/artificial intelligence
Monday, November 12, 2007 at 9:28pm by holli

Physical Science, ipc
Which can you do to reduce the power consumption in your home? ________________________________________ A. Add more circuit breakers. B. Wire more parallel circuits. C. Replace 75-watt light bulbs with 40-watt light bulbs.
Thursday, July 15, 2010 at 1:38pm by Superman

Physics
1. Ohm's Law states that for some circuits the voltage is proportional to the current. In other words, if you double the voltage, you will double the current. Which of these equations agrees with this statement of Ohm's Law? (∝ means "is proportional to".) Voltage ∝...
Thursday, April 18, 2013 at 11:26pm by John

Physics, help please!
Can the voltage across any of the three components in the R-L-C series circuit ever be larger than the maximum voltage supplied by the AC source? That maximum voltage is 50 volts in this situation. Also, does Kirchoff's loop rule apply to this circuit? In other words, is the ...
Friday, March 2, 2012 at 6:36pm by Jim

internationa business operations management
As the production manager for an electronic circuit company you have encountered the following situation. Part 1 A process for producing electronic circuits has achieved very high yield levels. An average of only 10 defective parts per million is currently produced. 1. What ...
Thursday, August 19, 2010 at 5:16pm by lisette

Electricity and Electronics
A circuit contains twodevices that are connected in parallel. If the resistance of one of these devices is 12 ohms and the resistance of the other devices is 4 ohms, the total resistance of the two devices is? 1/R = 1/R1 + 1/R2 You have R1 and R2. Solve for R. It will be less ...
Thursday, June 15, 2006 at 11:44pm by jackie

Physics;Help!!!!!!
There is apparently no one online who can help with physics questions right now. Please check back later to see if a physics teacher has addressed your question. Multiple posts won't get faster answers. Thanks. =) The question is in the first question marked physics beside ...
Thursday, June 7, 2007 at 10:32pm by Writeacher

Math
The total resistance of two circuits in parallel is 15 ohms and one circuit has five times the resistance of the other, find the resistance of each circuit. Use 1/R=1/R1+1/R2. R1 and R2 are two individual resistances. a)Find the smaller resistance b)Find the larger resistance
Tuesday, March 12, 2013 at 1:29am by Megan

circuits
the zero input response of a series RLC circuit with R=80 ohms is V(c)=2e^(-2000t)cos(1000t)-4e^(-2000t)sin(1000t) V for t>0 if the initial conditions remain the same, what is the zero-input response when R=40 ohms
Monday, March 23, 2009 at 6:19pm by alice

Circuits
A 170 -pF capacitor is connected in series with an unknown capacitance, and as a series combination they are connected to a battery with an emf of 25.0 V. If the 170 -pF capacitor stores 135 pC of charge on its plates, what is the unknown capacitance?
Saturday, March 3, 2012 at 12:37pm by Susan

business
MGT635-1003B-04 International Business Operations Management Assignment Name: Unit 5 Individual Project Deliverable Length: 6-7 body pages Details: As the production manager for an electronic circuit company you have encountered the following situation. Part 1 A process for ...
Sunday, August 15, 2010 at 11:08pm by 1SGCalhoun

Physics
Thanks for any help :) Four 20 ohm resistors are connected in parallel and the combination is connected to a 20V emf device. The current is: A) 0.25A B) 1.0 A C) 4.0 A D) 5.0 A E) 100 E Parallel circuits: I know that the voltage is 20V and the Resistance is 20 V. So, I divided...
Thursday, March 15, 2007 at 3:55pm by susane

Physics please please help me
Prove the law for triangle ABC i.e sin A/a=sinB/b=sinC/c Please help me!
Wednesday, November 16, 2011 at 2:10pm by Meron

Physics- Circuits
A 100-microCoulomb parallel-plate capacitor is charged with a 24V power supply, then is disconnected from the power supply. a) The plates are moved 0.01 m apart to 0.05 m apart. What happens numerically, to the: i. Capacitance of the device? ii. Potential difference between ...
Saturday, April 12, 2008 at 8:05pm by Bobby

Physics-bobpursley please check
This is the question I posted about two hours ago and I worked it out two ways-could you scroll down and check it, please?If I have a roller coaster, and hill 1 height is 50cm and hill height 2 is 25 cm and the PE is .9 as it approaches the top of hill 2, how do I calculate ...
Thursday, November 4, 2010 at 9:18pm by Joey

physics please please please please please
a block of mass 2.50 kg rests on a ramp. if the coefficient of static friction between the block and ramp is 0.350, what maximum angle can the ramp make with the horizontal before the block starts to slip down?
Tuesday, February 15, 2011 at 12:25am by JayCee

Physics-Please check calculations
I posted this earler and you gave me help, could you please check what I did? Thank you If a car drives off a 40 m high cliff with a horizontal velocity of 15 m/s, how far from the base of the cliff will the car strike the ground? Could someone help with the equation, please ...
Sunday, January 2, 2011 at 5:34pm by JessieLynne

Physics-bobpursleyplease check
This is the question I posted about two hours ago and I worked it out two ways-could you scroll down and check it, please?If I have a roller coaster, and hill 1 height is 50cm and hill height 2 is 25 cm and the PE is .9 as it approaches the top of hill 2, how do I calculate ...
Thursday, November 4, 2010 at 7:36pm by Joey

Physics.
I posted at around 7:44 please help me, everytime I post, no one ever helps me, or it is too late...I only ever want physics help...so please, lend a helping brain! :) (Im not trying to come off mean, Im just frustrated beyond belief)
Thursday, September 27, 2007 at 8:20pm by Cooper

physics/medical physics
please assist me to get project topic under biophysics or application of physics in medecine
Wednesday, August 12, 2009 at 7:56am by mataos

physics
A 34 g glass thermometer reads 21.6C before it is placed in 135 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 38.7C. What was the original temperature of the water? I need help on this please could someone please help out.Thank you! ...
Tuesday, April 24, 2012 at 6:58pm by Akbar

physics
A 34 g glass thermometer reads 21.6C before it is placed in 135 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 38.7C. What was the original temperature of the water? I need help on this please could someone please help out.Thank you! ...
Wednesday, April 25, 2012 at 12:08pm by Akbar

Circuits
I need to calculate the voltage through the resistor and the voltage through the inductor of an RL series circuit for different frequencies. The voltage of the source is 2.5 V. The inductor is at the top and has an inductance of .200 H and the resistor is at the right with a ...
Saturday, March 24, 2012 at 12:09am by Heather

Circuits
I need to calculate the voltage through the resistor and the voltage through the inductor of an RL series circuit for different frequencies. The voltage of the source is 2.5 V. The inductor is at the top and has an inductance of .200 H and the resistor is at the right with a ...
Saturday, March 24, 2012 at 2:53pm by Heather

circuits
so i have a circuit (series) where the the emf=12 V and R1=2 ohms and R2=0 ohms. Basically, theres's a square. The battery voltage(12V) is on the left side. The R1=2 is on the top side of the square and R2=0 ohms is on the right side of the square. The total current of the ...
Monday, February 16, 2009 at 10:13pm by Anonymous

electronics
which of the following statements is a true statement concerning the T-N theorem? #1-the T-N theorem can be applied only to d-c circuit analysis. #2-the T-n theorem can be applied only to a-c circuit analysis #3-the T-N theorem can be applied to circuits containing both d-c ...
Sunday, August 24, 2008 at 10:40pm by dale mckinney

Physics
Please help me with my physics homework I've been given a week and can't for the life of me work out how it is done. Tom has a rubber ball which weighs 5 kilograms and bounces 3.8 meters from a drop height of 4 meters using this information please work out the mass of the Sun.
Friday, July 6, 2012 at 10:24pm by Jack

HELP! PHYSICS LABS!!
CAN someone please help me...I am so confused and I have little time left to do my assingment, please! I am freaking out! Please help me!! Can someone please explain why when the centripetal force increases, so does the radius, and why when Centripetal force increases, so does...
Tuesday, October 2, 2007 at 9:28pm by Cooper-Nichol

REPOST
CAN someone please give me a good idea as how to find information for this problem: we are supposed to relate physics to movies, and state mistakes or errors found in the movies based on physics principles. I am trying to do Willy Wonka the 1971 version...I need help trying to...
Saturday, December 8, 2007 at 7:54pm by Please McHelp me!

Physics
When James applied the brakes to his car, it slows unifromly from 15.0 m/s to 0.0 m/s in 2.50 s. How many meters before a stop sign must she apply her brakes in order to stop at the sign? Answers: 6.0m 37.5 m 18.8 m 48.0m Please help-I've just started Physics last week and I'm...
Monday, September 6, 2010 at 2:23pm by Ian

physics
A 34 g glass thermometer reads 21.6C before it is placed in 135 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 38.7C. What was the original temperature of the water? I need help on this please could someone please help out.Thank you! ...
Thursday, April 26, 2012 at 4:41pm by Akbar

physics(please help! please)
*please help ily*. a fishing pole, 2m long, is pivoted at 50cm from one end. the other end has a line with a 4 kg fish on it. what is the effort force required to land the fish?
Monday, April 21, 2014 at 10:59am by please help

work (physics)
a 25 kg object is accelerating from rest to a distance of 6 m in 4 seconds across a level floor. The friction is 3.8 N - what is the total work........ i started off by trying to find fa but it seems to give me an absurd answer.. maybe if u could help me by telling me the ...
Tuesday, April 7, 2009 at 8:32pm by marisa

Repost physics
PLEASE SOMEONE HELP ME!! I POSTED DOWN AT AROUND 10 something!! PLEASE!!! I NEED HELP!!!
Sunday, September 30, 2007 at 11:22pm by Cooper-Nichol

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