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April 21, 2015

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: 38,072

Geography
Compare and contrast the various sources of energy. ---my teacher told me to do renewable and non-renewable. this is what i got: Energy sources are of two types: nonrenewable and renewable. Energy sources are considered nonrenewable if they cannot be replenished in a short ...
October 25, 2009 by mysterychicken

Science
Molecules that make up matter move constantly.Which of these forms of energy refers to the energy of the moving molecules and why? A.Chemical Energy B.Thermal Energy C.Electrical Energy D.Light Energy Which device can change electrical energy to light and sound energy? A....
April 2, 2012 by Rezu

science
list as many ways as u can how are crystalline solids connected to science? how are crystalline solids connected to math? how are crystalline solids connected to the world? how are crystalline solids connected to you? why is it important?
October 7, 2007 by kim

physics
An oven is plugged into a 120 V electrical outlet and "cooks" the food by using a 144 ohm resistor light bulb that converts electrical energy to both light and heat energy. If the light bulb converts 75% of the electrical energy to thermal energy, and the oven is used for a ...
May 30, 2013 by maddy

science-physics
Q1)which of these energy resources does not originate from the suns energy?:natural gas,oil,geothermal energy,coal Q2)the burning of fossil fuels does not release? potential energy,light energy,sound energy , heat energy?? Q3)at the moment renewable energy sources generate? ...
November 5, 2007 by elliot

physical science
the headlamp and 2 identical tail lamp are conected in paralel to batery with unknown internal resistancs.headlamp resistance wth 2.4 ohm controld by switch s1.the tail lamps are controled by s2.the resistance of the connection wired may be ignored. questions:1.determine the ...
January 16, 2012 by queen

Physics
When discharging a capacitor it will a) loose half of its charge in equal time intervals b) loose a third of its charge in equal time intervals c) loose a quarter of its charge in equal time intervals d) gain half of its charge in equal time intervals I know that d) isn't ...
April 4, 2008 by Andrea

6th grade science
how much thermal energy produced by burning gasoline is converted into kinetic energy?
January 14, 2009 by desteny

Physics
12MJ of energy is released when 1kg of dynamite is exploded. How much matter is converted into energy in the process?
March 6, 2011 by Dee

physics
Suppose a 65-kg person can run 1000m in 5min. Assume that each stride is 1.5m long, and with each stride the runner must supply an amount of energy equal to her kinetic energy. How much energy (in food calories) is required to run 1km? Is your answer realistic?
January 29, 2012 by Hayli

engineering
In the process of electrolysis, electrical power is used to separate water into oxygen and hydrogen molecules via the reaction: H2O --> H2 + O2 This is very much like running a hydrogen fuel cell in reverse. We assume that only the activation potential for the hydrogen ...
December 19, 2013 by Timothy Boons

physics
In the process of electrolysis, electrical power is used to separate water into oxygen and hydrogen molecules via the reaction: H2O --> H2 + O2 This is very much like running a hydrogen fuel cell in reverse. We assume that only the activation potential for the hydrogen ...
December 20, 2013 by Arnold Smith

physics-rotational dynamics
Two astronauts, each having a mass of 75.0 kg, are connected by a 10.0 m rope of negligible mass. THey are isolated in space,orbiting their center of mass at speeds of 5.00 m/s. calculate A)magnitude of the angular momentum of the system by treating astronauts as particles and...
February 12, 2007 by cyndi

chem
In a vehicle, H2 could be used in a fuel cell to generate energy. Hydrogen is not an energy source, but a means of transporting energy because the extraction of H2 from the logical source, H2O, takes as much energy as is returned when the gas is used. 2 H2O (l) → 2 H2 (g...
November 2, 2010 by Andrew

Physics Homework
Consider problem U concerning the geosynchronous satellite of mass 50 kg. It orbits at a radius of 42,300 km with a speed of 3076 m/s. a) How much energy is needed to lift the satellite from the earth's surface (Re=6,370 km) up to that radius? b) How much kinetic energy does ...
October 20, 2013 by Eli Smith

science
Marlene's car won't start. She wonders if she is out of gas. She checks the gas gauge and sees that the car has gas. Then she wonders if the battery is dead. She checks the battery and discovers that it is dead. Marlene conclude that her car battery is dead. Accoring to the ...
September 6, 2010 by ant

CIRCUIT
if three resistors are connected in series across a 12 V battery and the voltage drop across one resistor is 3 V and the voltage drop across the second resistor is 7 V, what is the voltage drop across the third resistor?
April 12, 2015 by Camille

Chemistry
Automobile batteries contain sulfuric acid, which is commonly referred to as "battery acid." Calculate the number of grams of sulfuric acid in 0.650 L of battery acid if the solution has a density of 1.28 g/mL and is 38.1% sulfuric acid by mass.
August 18, 2013 by Anonymous

MICRO
The size of the amplified DNA fragment generated during PCR is determined by: a.how many cycles are performed. b. the size of the template c. the location to which the primers anneal. d. how much Taq is used. I believe the answer is c but have had some difficulty finding this ...
September 10, 2008 by DIANNE

Physics Help Please
Suppose a 65-kg person can run 1000m in 5min. Assume that each stride is 1.5m long, and with each stride the runner must supply an amount of energy equal to her kinetic energy. How much energy (in food calories) is required to run 1km? Is your answer realistic?
January 29, 2012 by Haylee

Physics
I'm having a problem understanding a question. "If a man exerts a 200N force while pushing a crate 5.0 m across a floor against a frictional resistance of 40N, how much energy was expended by the person pushing?" I can figure out work done on the box and those sorts of ...
April 7, 2009 by Brigid

language
Select the word or words that the italicized phrase modifies or describes. The original cell phones battery NEEDED TO BE RECHARGED after 30 minutes of use. a) cell phones b) battery c) 30 minutes d) use
November 16, 2013 by victoria

chemistry
Why do you think that the ionization energy tends to decrease within a family of the periodic table? Since ionization energy tends to increase within a period of the periodic table because they are in higher energy orbitals so it'll take more energy to remove the electrons. It...
April 19, 2009 by sh

physics
6. You have kinetic energy when you run. If you run three times as fast, you'll have a kinetic energy ____________________. A) 3 times as much. B) 6 times as much. C) 9 times as much. D) that is the same. E) None of these.
February 21, 2012 by britches

physic
hi,need help please.thank. A car is designed to get its energy from a rotating flywheel (solid disk) with a radius of 2.00 m and a mass of 525 kg. Before a trip, the flywheel is attached to an electric motor, which brings the flywheel's rotational speed up to 4000 rev/min. (a...
November 22, 2009 by Chan

Physics 2
A(n) 78- resistor and a 68- resistor are connected in series across a battery. The voltage across the 78- resistor is 25 V. What is the voltage across the 68- resistor?
February 16, 2012 by Anne

College Physics
A parallel plate capacitor is made of two 3.5 cm x 3.5 cm square plates that are separated by 1.6 x10 -5 m. The plates are charged to 4.8 nC each (positive and negative). An electron is released from rest at the surface of the negative plate and simultaneously a proton is ...
February 8, 2012 by Collin

Physics
A circuit consists of a resistor of R=7 Ω, a capacitor of C=7 μF, and an ideal self-inductor of L=0.04 H. All three are in series with a power supply that generates an EMF of 5sin(ωt) Volt. The internal resistance of both the power supply and the inductor are ...
May 22, 2013 by Annoyingmous

Science
How does a light bulb transform electrical energy into radiant energy? The metal filament is heated hot so the the outer electrons on the atoms become exited to higher unstable energy levels, and as they come back to natural levels, light is emitted. THANK YOU SO MUCH!!!
November 15, 2006 by Help!

11th grade
a spring with a spring constant of 4 newtons per meter is compressed by a force of 1.2 newtons. what is the total elastic potential energy stored in this compressed spring
April 13, 2010 by Anonymous

Physics
This question has been blowing my mind, and my teacher is offering no help whatsoever. Experiments performed on the wing of a hawkmoth (Manduca sexta) show that it deflects by a distance of = 4.9 mm when a force of magnitude = 3.2 mN is applied at the tip. A: Treating the wing...
October 22, 2009 by Sal

chem
How much energy is required to ionize a hydrogen atom in its ground (or lowest energy) state? What wavelength of light contains enough energy in a single photon to ionize a hydrogen atom?
October 27, 2008 by natash

Chemistry
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
November 25, 2014 by Morgan

Chemistry
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
November 26, 2014 by Cortey

physics
A steel ball of mass m=5 g is moving at a speed of 250 m/s toward a large mass M=2.2 kg which is connected to a relaxed spring, as shown below. When the ball reaches the large mass it collides and bounces off without losing any kinetic energy. The large mass is connected to a ...
November 7, 2014 by joan

Physics
Hooke's law states that it takes a force equal to kΔx is required to stretch a sorting a distance Δx beyond its rest length. A) determine a formula in terms of k & Δx that represents the amount of work required to stretch a spring to a distance Δx. Hint: ...
January 3, 2014 by Sandara

physics
1. Calculate the speed in m/s at which the Earth revolves about the sun. You may assume the orbit is nearly circular. 2. A satellite is about 6.5 x 10^3 km from the (center of the) Earth. Find its average orbital speed about the Earth. 3a. A certain satellite has a kinetic ...
July 12, 2010 by anonymous

business
Think about where your personal information is stored from an information systems perspective: - Is your credit card information saved on file at your favorite online store? - Are your medical records stored electronically at your doctors office? - What would happen if that ...
July 22, 2008 by keri

physics
A microwave draws 5.0 A when it is connected to a 120 V outlet. If electrical energy costs $0.090 per kWh, what is the cost of running the microwave for exactly 6 h?
November 20, 2013 by TT

physics
a worker drives a .551 kg spike into a rail tie with a 2.55 kg sledgehammer. The hammer hits the spke with a speed of 62.1 m/s. if one fourth of the hammers kinetic energy is converted to the internal energy of the hammer and soike, how much does the total internal energy ...
February 7, 2011 by Emily

physics
Two blocks connected by a string are on a horizontal frictionless surface. The blocks are connected to a hanging weight by means of a string that passes over a pulley as shown in the figure below, where m1 = 1.75 kg, m2 = 2.85 kg, and m3 = 4.95 kg. (a) Find the tension T in ...
February 8, 2011 by Anonymous

physics
Three bolocks are connected(mass_1 on the left connected to mass_2 with a string which is T_1. Mass_2 is connected to Mass_3 with a string, T_2. the force is holding on to T_3 which is connected to mass_3) and pulled to the right on a horizontal frictionless table by a force ...
November 13, 2006 by Chris

science
I guess I'm missing something here...but I've approached this question in every possible angle and im just not getting it! Could somebody point me in the right direction? Here is the question: If the measured net radiation (Q*) for the lawn of your home in August is 700 W/m^2 ...
October 1, 2009 by Kathleen

Biology
Which is the most direct way that the carbon in starch stored in cereal grain can be released to the atmosphere as carbon dioxide? 1. grain destroyed by fire 2. grain eaten by birds 3. grain made into bread and eaten by humans 4. grain stored in damp conditions goes mouldy and...
October 12, 2009 by Marrion

science
Which of the following gives off more energy than it absorbs? melting ice, burning propane in a gas heater, sublimation of carbon dioxide to carbon dioxide gas, recharging a car battery
February 19, 2013 by lidia

Chem please help
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
November 25, 2014 by Morgan

Chem please help
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
November 26, 2014 by Morgan

Physics
A spring has a constant of 2.4 x 10^2 n/m. What force does it take to stretchmit .8m? How much PE is stored in the spring? Make a graph of the constant from .1 to 1.0 meters.
January 6, 2013 by Alicia

Physics
You set out to design a car that uses the energy stored in a flywheel consisting of a uniform 103-kg cylinder of radius R that has a maximum angular speed of 450 rev/s. The flywheel must deliver an average of 1.70 MJ of energy for each kilometer of distance. Find the smallest ...
August 2, 2011 by Alex

help
Estimate the power you deliver when starting to walk from a standstill, in W: & Your body radiates about 88 W in heat energy. How much energy, in J, is radiated in one hour?
August 24, 2008 by tom

chemistry
500 grams of water at 0 degrees C was heated to a boiling in a large pot. how much energy was needed? what was the temperature change and Heat energy
May 2, 2011 by amanda

physics
a new brand of solar panel generates 500 watts of electrical energy. how much energy would it produce after 24 years."
October 31, 2012 by Alex Reynolds

Physics
An object of mass .550kg is lifted from the floor to a height of 3.5m at a constant speed. How much work is done by the lifting force (include units)? b.) How much work is done by the Earth on the object? c.) What is the net work done on the object? d.) What is the change in ...
December 9, 2012 by Tim

Physical Science
What is the kinetic energy of a 1850 kg car that is traveling at 58.0 km/h? B. How much work was done to give the car this kinetic energy assuming the car starts from rest? C. How much work must be done to stop the car?
September 10, 2014 by Barbara

science
a fan uses 150j of mechanical energy, 20j of heat and 75j of sound energy a) what is the total input energy b) what is the total useful output energy c)what is the total wasted energy d) what is the energy efficiency e) what percent of the energy was wasted
December 5, 2010 by Anonymous

chem please help drbob222
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules
November 25, 2014 by Morgan

Physics
Question: The amount of internal energy needed to raise the temperature of .25 kg of water by 0.2 degrees Celsius is 209.3 J. How fast must a 0.25 kg baseball travel in order for its kinetic energy to equal this internal energy? KE = (.5)(m)(v^2) 209.3 J = (.5)(.25kg)(v^2) ...
February 15, 2010 by mike

physics
Friction converts kinetic energy to a. mechanical energy b. potential energy c. nonmechanical energy d. total energy i don't think its B,..
February 21, 2009 by Bella

chemistry
Suppose a car's motor draws 231 Ampere of current for 6.3 sec to start the car. What mass of Pb is oxidized in the lead-acid battery to supply this much electricity?
December 2, 2012 by Cristian

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, ...
October 15, 2007 by Soly

English
1. Two months ago, he was flying to L.A. for a meeting. 2. Two months ago, he was flying to L.A. to have a meeting. (Are both the same?) 3. While he was writing a report, the battery in his computer died. (What other words can we use instead of 'died'?) 4. He couldn't finish ...
May 1, 2013 by rfvv

physics
In preparation for shooting a ball in a pinball machine,a spring (K=675N/m) is compressed by 0.0690m relative to its unstrained length. The ball(m=0.600kg) is at rest against the spring at point A.When the spring is released, the ball slides (without rolling) to point B, which...
April 1, 2007 by Cavin

Computer Science
I have defined a microscopic verson of scheme that utilizes amb. I am currently using Dr. Scheme. This is my definition: (define (amb-eval s environment succeed fail) (cond ((not (pair? s)) (succeed (cond ((eq? s '#t) '#t) ((eq? s '()) '()) ((eq? s '#f) '#f) ((number? s) s) ((...
May 15, 2008 by Jacob

Biology Photo efficency
How do you calculate the photosynthetic efficiency ..the % of solar energy reaching vegetation in an ecosystem that is converted to GPP ??? I know the amount of sol energy, GPP, NPP etc... is it the GPP divided by the energy reaching the amount of solar energy perhaps ??? ...
January 11, 2007 by Snail

Physics Conservation of Energy
During a rockslide, a 740 kg rock slides from rest down a hillside that is 500 m long and 300 m high. The coefficient of kinetic friction between the rock and the hill surface is 0.18. (a) If the gravitational potential energy U of the rock-Earth system is set to zero at the ...
February 10, 2013 by Kevin

Physics Conservation of Energy
During a rockslide, a 740 kg rock slides from rest down a hillside that is 500 m long and 300 m high. The coefficient of kinetic friction between the rock and the hill surface is 0.18. (a) If the gravitational potential energy U of the rock-Earth system is set to zero at the ...
February 10, 2013 by Kevin

physics
Energy is released during a nuclear reaction due to a conversion between mass and energy. Mass is not conserved. The initial and final amounts are different. If a total of 4.6 g of mass were missing, how much energy is released? The speed of light is 3 108 m/s...
May 29, 2013 by Anonymous

physics
A mass of 337 g connected to a light spring of force constant 19.4 N/m oscillates on a horizontal, frictionless track. The amplitude of the motion is 5.4 cm. Calculate the total energy of the system. Answer in units of J.
February 26, 2015 by Bee

Physics
1-A car is lifted a certain distance in a service station and therefore has potential energy with respect to the floor. If it were lifted twice as high, how much potential energy would it have? Answer: twice as much 2-Two cars, one twice as heavy as the other, are lifted to ...
December 9, 2009 by Emily

Physics
When a positive charge moves in the direction of the electric field, what happens to the electrical potential energy associated with the charge? It increases. It decreases. It remains the same. It sharply increases, and then decreases. A How is a motor's mechanical energy able...
January 3, 2012 by Anonymous

chem
A patient receives 2700mL of an IV solution containing 4g g of glucose per 100 mL .How much energy, in kilojoules, does the patient obtain from glucose, a carbohydrate?How much energy, in kilocalories, does the patient obtain from glucose?
September 3, 2014 by k

physics
On a slide a child has a potential energy that decreases by 1000 J while her kinetic erergy increases by 900 J. What other form of energy is involved and how much?
March 2, 2009 by sarah

Physics - Energy
Two comets, each of mass 6500 kg and traveling 88 m/s in opposite directions, collide head-on and come to rest. How much energy is produced in this collision? Thank you!
October 26, 2011 by Alex

Chemistry
How much energy, in joules, must be absorbed to convert to Na+ all the atoms present in 1.00mg of gaseous Na? The first ionization energy of Na is 495.8 kJ/mol
December 9, 2012 by Chironjit

math
A coordinate grid is used on the plan of a new housing development. fibre optic cable is being laid with a micro-tunnelling machine. THE CABLE WILL LINK POINTS BEGINNING at A and ending at D . if one unit on the grid represents 2.5m, how much cable is required? pls help me
October 16, 2010 by Ted

Physics
A certain "brand-new" (never-used) 9.0 volt cell contains 40mC of charge. The Electric energy "stored" in the cell amounts to about (___) joules. 0.0 0.06 37.5 .36 60x10^-4 I'm not too sure how to figure this problem out. I initially thought 40/9, but the answer was not one of...
February 5, 2011 by Amber

Physics
in a compressed spring, energy is in the form of (a) kinetic energy (b) potential energy (c) chemical energy (d) sound energy
August 18, 2010 by Anonymous

physics
The heating value of a Gas is 39MJm-3 a) If 4.5m-3 of the gas is burned how much energy is released? b) If the gas is burned in 5 minutes what is the power? c) If the burning occurs in an engine that converts the energy to forward motion and the engine is 20% efficient in ...
July 22, 2010 by kirsten

science
four 9-volt barreries are connected in parallel. How much voltage is active across the circuit?
October 12, 2007 by Lizette

Physics
Can anyone help? the resistance of the side lights on an automobile are 10 ohms. How much current flows in them when connected to 12 volts
October 27, 2007 by alex

physical science
How much current flows in a 12-watt radio connected to a 120-Volt circuit?
November 2, 2008 by Jordan

Physical Science
How much current flows in a 12-watt radio connected to a 120-Volt circuit?
November 3, 2008 by Jordan

12th grade
How much current flows in a 12 watt rad?io connected to a 120-Volt circuit
June 29, 2009 by anonymous

11th grade
how much current flows in a 12-watt radio connected to a 120-volt circuit.
March 22, 2010 by Daquindre

chem please help
What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules Do not give me a website to ...
November 26, 2014 by Morgan

Physics
The temperature in an electric oven is 165C. The temperature at the outer surface in the kitchen is 55C. The oven (surface area = 1.6 m2) is insulated with material that has a thickness of 0.023 m and a thermal conductivity of 0.045 J/(smC). a) How much energy is used to ...
April 18, 2007 by papito Urgent help needed

Physics
A very long cylindrical capacitor consists of two thin hollow conducting cylinders with the same axis of symmetry. The inner cylinder has a radius a, the outer one has a radius b. You may ignore end effects. (a) Fig. 1 (b) Fig. 2 (a) What is the capacitance per unit length? ...
March 12, 2013 by P

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

math
A coordinate grid is used on the plan of a new housing development. fibre optic cable is being laid with a micro-tunnelling machine. The cable will link points with coordinates A(-18,12), B(-8,1), C(3,4)and D(15,7)in a run beginning at A and ending at D . if one unit on the ...
October 20, 2010 by Ted

chem
How much energy, in joules, must be absorbed to convert to Na all the atoms present in 1.00mg of gaseous Na? The first ionization energy of Na is 495.8kj/mol .
October 26, 2008 by tomi

physics
A standard man climbs 10 m up a vertical rope. How much energy in calories is dissipated as heat in a single climb if 20% of the total energy required is used to do the work?
April 24, 2013 by John

physics
Assuming the Earth's magnetic field averages about 0.5010−4 T near Earth's surface, estimate the total energy stored in this field in the first 15km above Earth's surface. The radius of Earth is 6380 km.
March 23, 2014 by Jennifer

Physics
The length of a simple pendulum is 0.72 m, the pendulum bob has a mass of 305 grams, and it is released at an angle of 10 to the vertical. a) With what frequency does it vibrate? Assume SHM. (b) What is the pendulum bob's speed when it passes through the lowest point of the ...
April 17, 2010 by Luricela

Science
Which of these energy changes takes place in a solar cell? A.Heat energy to light energy B.Light energy to electrical energy C.Electrical energy to heat energy D.Thermal energy to electrical energy C?
April 2, 2012 by Rezu

CHEM
The electron from a hydrogen atom drops from an excited state into the ground state. When an electron drops into a lower-energy orbital, energy is released in the form of electromagnetic radiation. Part A: How much energy does the electron have initially in the n=4 excited ...
November 4, 2007 by K

Chemistry
An electron jumps from energy level 1 to energy level 2 by absorbing a photon of energy 8 eV. What is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level 1? 2 ev 4 ev 8 ev 12 ev What is the best description of the ...
October 31, 2013 by bigurl1.4

Physics
I know that when objects are connected and a force is exerted on the connected objects, we treat them as a system with a single acceleration. I was just wondering if objects were piled on top of each other they would still be connected. if a horizontal force was exerted on one...
August 31, 2011 by Thara

Physics
A resistance of 400 ohms and inductance of 8H and a capacitance of 20 microfarad are connected in series. Cal. (I) the peak current (ii) the phase angle when an a.c voltage of 40v, f= 900Hz is connected across them
March 20, 2012 by Olorunferanmi Thomas

physic
an electric drill rated at 400 W is connected to a 240 v. how much current does it draw? explain your answer
December 12, 2010 by sam

Physics
Four coulombs of positive charge flow from the +6 V positive terminal of a battery to the negative terminal at 0V. What is the charge in potential energy of the charge.
January 19, 2011 by Adriana

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