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February 19, 2017

Search: If the linear speed of the disk is 1.35 m/s, find the translational kinetic energy, rotational kinetic energy, and the total kinetic energy of the rolling hoop.

Number of results: 127,441

physics
Which of the following summarizes Rutherford's model of the atom? Choose one answer. a. Electrons are embedded in a positive region of spherical dimension. b. Electrons revolve around the nucleus without emitting radiation. c. Electrons revolve around the nucleus like planets ...
May 1, 2011 by ashley --- HELP PLEASEE!!!

Physics(Please help)
1) A box is sliding up an incline that makes an angle of 14.0 ° with respect to the horizontal. The coefficient of kinetic friction between the box and the surface of the incline is 0.176. The initial speed of the box at the bottom of the incline is 3.72 m/s. How far does the...
May 29, 2012 by Hannah

Physics
A small circular object with mass m and radius r has a moment of inertia given by I = cmr2. The object rolls without slipping along the track shown in the figure. The track ends with a ramp of height R = 3.0 m that launches the object vertically. The object starts from a ...
March 29, 2012 by Adam

biochemistry
Suppose the concentration of glucose inside a cell is 0.1 mM and the cell is suspended in a glucose solution of 0.01 mM. What would be the free energy change involved in transporting 10?6 mole of glucose from the medium into the cell? Assume T= 37 ?C. ANSWER: 5.93�10?6 kJ ...
February 4, 2017 by Samantha

Biology
1. Are the third-order heterotrophs consumed by gungal decomposers? My guess:Yes? 2. Which of the following fixes atmospheric N2 (nitrogen gas)? A. photosynthesis B. symbiotic bacterianon the roots of legumes C. uv light D. decay organisms E. autotrophs My guess: B? 3. Which ...
September 13, 2009 by Anonymous

Physics
A disk with a mass of 13 kg, a diameter of 25 cm, and a thickness of 8 cm is mounted on a rough horizontal axle as shown on the left in the figure. (There is a friction force between the axle and the disk.) The disk is initially at rest. A constant force, F = 70 N,is applied ...
October 25, 2010 by Donny

Physics
A 50g bullet strikes a stationary 1.50kg block of wood paced on a horizontal surface just in front of the gun. The bullet becomes embedded in the block and the impact drives them a distance of 10m before they come to rest. If the coefficient of kinetic friction between the ...
May 9, 2012 by Sarah

Physics
for some reason I keep on getting 1.2 seconds for (b) and .86 m for (a) The back of the book has the same answers for (a) but has 1.5 seconds for (b) i do not see what I'm doing wrong. Can someone confirm that I'm wrong or right??? A blcok is given an intial speed of 3.0 m/s ...
December 20, 2009 by Jake

physics
if the weight of the block,W,is 2.5 kilogram,the coefficient of static friction,0.25,and the coefficient of kinetic friction,0.15,determine: (a) the force necessary to hold the block sliding down (b) the force necessary to pull the block up the plane with uniform speed
March 6, 2013 by helpppp meeeeeeee PHYSICS.........................

physics
The finding that light in free space has one speed, and one speed only, is consistent with ____________________. A) the conservation of energy as shown by Maxwell.B) general relativity.C) Newton's laws of motion.D) electromagnetic induction. My book tells me it is A and D but ...
April 28, 2012 by Kristie

Physics-Please check my answer-I've been working o
If I went tubing with my little sister, and I have a larger mass, why would we both reach, in terms of energy, the bottom of the hill at the same time; Originally I thought because we would both be accerlerating at the same rate but that doesn't explain the energy part does it...
January 11, 2011 by Sheila

damped oscillator
How do I show mathematically that Q is equal to the following in a damped oscillator? The quality factor Q of a damped oscillator is defined as Q=2pi τ(tau) /T. Show mathematically that Q is equal to 2pi*)energy of oscillator/energy lost by oscillator over one period)
October 15, 2015 by cat

Chemistry
usinf the kinetic molecular theory, why does the gas pressure increase when volume of gas decreases at constant temperature?
April 5, 2008 by Maya

Physics
A 100 N force is applied to a 50.0 kg crate resting on a level florr. The coeeficient of kinetic friction is 0.15. a. What is the acceleration of the crate?
January 28, 2011 by jdajaljk

physics
a 2.0kg object is pulled horizontally by a force of 6.3N along the floor where the coefficient of kinetic friction is o.24. what is the object acceleration
January 26, 2012 by liz

physics college
A billiard ball that is initially at rest is given a sharp blow by a cue stick. The force is horizontal and is applied at a distance h = 2R/3 below the centerline, The speed of the ball just after the blow is v0 and the coefficient of kinetic friction between the ball and the ...
May 16, 2012 by lost

PHYSICS work on a ramp!!!
How much work is it to push a box (mass 190 kg) up an incline (angle 16 degrees with the horizontal) that is 8.3 meters long, if the coefficient of kinetic friction between the box and the incline is 0.6? My doubt is how do I find force?
April 10, 2016 by Matt

physics
why is static friction bigger than kinetic friction
December 9, 2010 by Michelle

physics
Question Part Points Submissions Used 1 2 –/1 –/2 0/3 0/3 Total –/3 A force of 12.8 N pulls horizontally on a 0.9 kg block that slides on a rough, horizontal surface. This block is connected by a horizontal string to a second block of mass m2 = 2.04 kg on the same ...
October 9, 2012 by Anonymous

physics
A basketball player 1.9 m tall wants to make a basket from a distance of 7.8 m. The hoop is at a height of 3.05 m.If he shoots the ball (from a height of 1.9 m) at a 23.5 angle, at what initial speed must he shoot the basketball so that it goes through the hoop without ...
October 16, 2012 by scott

Physics
An object with charge qo = 1.5μC and mass 0.7 g starts from rest at the +6V equipotential line. Calculate its change in potential energy and speed when it reaches the +2V line.
February 15, 2010 by Amy

Physics
An object with charge qo = 1.5μC and mass 0.7 g starts from rest at the +6V equipotential line. Calculate its change in potential energy and speed when it reaches the +2V line.
February 16, 2010 by Amy

Physics
You throw a 238 g baseball straight up from a height of 1.73 m and it reaches a height of 13.2 m. Using conservation of energy, what minimum initial speed is needed to accomplish this?
November 16, 2016 by Physics Lover

Maths lit grade 11
The registration fees for athletes in the different categories are as follow. Children: 10 - 14 =r 15,00 youth : 15 - 18 =r 20,00 adults : 19 years and older= r 30,00 distances: 1 yard= o,9140 1 mile= 1760 yards volume: 1 c= 0,264 us gallons time: 100 milliseconds= 1 second ...
April 28, 2016 by Getty

college physics
A CD has to rotate under the readout-laser with a constant linear velocity of 1.25 m/s. If the laser is at a position 3.2 cm from the center of the disk, what are the revolutions per minute (rpms) of the disk? Can someone please help me solve this problem step by step. The ...
September 20, 2010 by Amber

physics
A small bead of mass m is carried by a circular hoop of radius r which rotates about a fixed vertical axis. Show how one might determine the angular speed w of the hoop by observing the angle theta which locates the bead. Theta is measured to the right of the vertical axis. ...
October 31, 2009 by Jessi

science
I don't know the answers to these two questions. Could someone please help me? Here is the diagram: h t t p: // tinypic. c o m /r/ng92ds/3 (take spaces out of link) 1. The greatest biomass and energy isrepresented by which organisms? a. grass and bacteria and mold b. tadpole ...
August 31, 2009 by anna

Science!
Which of the following correctly identifies active transport? (1 point) Transport proteins move large molecules from areas of low concentration to areas of high concentration using cellular energy. Transport proteins move large molecules from areas of low concentration to ...
January 10, 2017 by Agala

Physics
A block of mass m = 5.9 kg is pulled up a è = 21° incline as in the figure with a force of magnitude F = 34 N. (a) Find the acceleration of the block if the incline is frictionless. 1 Your response differs from the correct answer by more than 10%. Double check your ...
October 7, 2011 by Imani

Physical Science
1. A wave has a wavelength of 10 mm and a frequency of 5.0 hertz. What is its speed? A. 50 mm/s B. 50 hertz/s C. 2.0 mm/s D. 0.50 mm/s 2. Which type of mechanical wave needs a source of energy to produce it? A. a transverse wave B. a longitudinal wave C. a surface wave D. all ...
June 6, 2013 by Lanny

physics (please help)
Two identical but separate strings, with the same tension, carry sinusoidal waves with the same frequency. Wave A has an amplitude that is twice that of wave B and transmits energy at a rate that is _____ that of wave B. a)half b)twice c) one-fourth d)four times e) eight times...
February 13, 2007 by susan

Physics: Capacitance of Capacitor
Capacitor A and capacitor B both have the same voltage across their plates. However, the energy of capacitor A can melt m kilograms of ice at 0 °C, while the energy of capacitor B can boil away the same amount of water at 100 °C. The capacitance of capacitor A is 8.4 μF...
May 10, 2013 by Phil-- HELP NEEDED ASAP

College Physics
Electronics and inhabitants of the International Space Station generate a significant amount of thermal energy that the station must get rid of. The only way that the station can exhaust thermal energy is by radiation, which it does using thin, 2.2 m-by-4.1 m panels that have ...
October 8, 2011 by Set5

Physics
The three 500 g masses in the daigram are connected by massless, rigid rods to form a triangle. What is the triangle's rotational energy (in J) if it rotates at 1.50 rev/s about an axis through the center? (Diagram shows equilateral triangle with 500g masses at each point, the...
November 14, 2011 by Please Help!

Physics
When U238 decays into Pb206 via alpha and beta decay, what are the byproducts of the decay? A) 8 alpha particles and 6 beta rays. B) 8 alpha particles, 6 electrons, 6 neutrinos, and energy. MY ANSWER . C) 16 alpha particles, 16 beta rays, and energy. D) 16 deuterons and 6 ...
October 26, 2011 by Anonymous

Physical Science
When U238 decays into Pb206 via alpha and beta decay, what are the byproducts of the decay? A. 8 alpha particles and 6 beta rays. B. 8 alpha particles, 6 electrons, 6 neutrinos, and energy C. 16 alpha particles, 16 beta rays, and energy D. 16 deuterons and 6 electrons. PLEASE ...
October 27, 2011 by Anonymous

y no one anwering my ques
How does active transport differ from passive transport? 1. Molecules move down a concentration gradient in active transport. 2. Carrier proteins are used only in active transport. 3. Energy is required only in active transport. 4. Energy is required only in passive transport
February 19, 2012 by anmol

Chemistry
"Find the total energy lost by the contents of a Styrofoam picnic cooler when a 3.60 kg block of ice placed inside the cooler completely melts (at 0 Celsius). The ice had an initial temperature of -10.00 Celsius." I did this question and i got 73080J but I'm not sure if i did ...
February 19, 2015 by Arman

Physical Science
If the absolute temperature of a gas is 600K, the temperature in degrees Celsius is? C= K-273 327 C what is the first step to designing an experiment what is a mole in measurement like mole mass. please help me get info. explain the relationship between velocity and ...
June 16, 2005 by Julio Paz

physics
If the rotational speed of a CD changes from 550 rpm to 200 rpm as it plays 30 minutes of music, what is the CD's average rotational acceleration?
October 27, 2016 by Katelyn

chemistry
At room temperature, 20° C, water (H2O) is a liquid and oxygen (O2) is a gas. Based on kinetic molecular theory, which answer best explains the states of the two fluids?
April 18, 2011 by Melanie

physics
A body of mass 'M' starts sliding down on the inclined plane where the critical angle is 30 the coefficient of kinetic friction will be ?answer is square root 3 but how?i am not getting please help.
June 8, 2014 by zoha

Physics
An experiment is designed in which a proton and an antiproton collide, producing a particle with mass 9700 MeV. What must be the incident kinetic energies and velocities of the colliding particles?
October 30, 2014 by Anonymous

Physics Help please
im not really understanding the question can someone please help me. the energy difference between states A and B is twice the energy difference between states B and C (C > B > A). In a transition (quantum jump) from C to B, an electron emits a photon of wavelength 400 ...
May 2, 2012 by Jared

Chemistry
3. A hypothesis is a testable statement.- T 4. Weight is a measure of the quantity of matter.- F 6. Potential energy is energy of motion.- F? 7. Liquids do not have a definite shape or volume.- F 8. The ability to burn is a chemical property.- T 10. Solutions are heterogeneous...
October 25, 2010 by mysterychicken

Science/Math/HElP
Science- A 25N object is 3 meters up. How much potential energy does it have? our teacher said that the formula for finding out potential energy is PE = Mass * Gravity * Height. The gravity on Earth is always 9.8, but my problem is that instead of mass the object is measured ...
February 8, 2012 by Lila

Mechanical Behavior of Materials
Incandescent light bulbs operate at a temperature of 2500 C when bright and 2200 C when dim. The creep rate of the filament when bright is 1.5 times that when dim. Assuming that the activation energy is constant within this temperature range, and that a single creep diffusion ...
December 9, 2015 by please HELP

Physics
Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is 114 km long, 31.3 km wide, and 194 m thick. (a) How much heat in joules would be required to melt this iceberg (assumed to be at 0 °C) into liquid water at 0 °C? The density ...
April 18, 2015 by P H Y S I C S

to ms.sue- science project part 1
Please select one of the four solar-energy-based topics listed below to research. Based on your research you are to create a poster that details what you learned. Please make a bibliography of the resources that you used for your information, to go along with your poster. ...
June 21, 2012 by Celest

Physics
A block with mass m = 2.00 kg is placed against a spring on a frictionless incline with angle θ=30.0° (see figure). The block is NOT attached to the spring. The spring, with spring constant k = 19.6 N/cm, is compressed 20.0 cm from its unloaded equilibrium length and ...
November 23, 2012 by Andreea

5TH GRADE SCIENCE
where in nature could you find a source of the same energy as that provided by batteries?explain
November 4, 2009 by jackie

chemistry
How would I find the number of Kcal energy released per mole of C8 H18 combusted?
June 17, 2010 by Anonymous

thermochemistry
what is the formula to find the mass of propane that must be combusted to produce 188.3kj of energy?
August 11, 2012 by Anonymous

Physics
Find the energy stored in the solid flywheel of mass 8.0×104 and radius 1.8 when it's rotating at 290
October 23, 2012 by John

biology
What are coupled reactions? Describe the interactions between enzyme, substrate, active site and the induced fit model Explain how changes in temperature, and pH affect the function of enzymes Recognize the structure of ATP, and be able to identify some key functions of ATP. ...
July 10, 2011 by noob

physics college
A billiard ball that is initially at rest is given a sharp blow by a cue stick. The force is horizontal and is applied at a distance h = 2R/3 below the centerline, as shown in the figure below. The speed of the ball just after the blow is v0 and the coefficient of kinetic ...
May 15, 2012 by lost

Physics
A girl coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 6.7 m/s. The coefficient of kinetic friction between runners and snow is 0.038, and the girl and sled together weigh 603 N. The acceleration of gravity is 9.8 m/s2 . How far does the ...
November 5, 2014 by Kayla Johnson

Physics
juana slides a crate along the floor of the moving van the coefficient of kinetic friction between the crate and van floor is 0.120 the crate has a mass of 56.8 kg and juana pushes with horizontal force of 124 N. if 74.4 J of work are done on crate and the delta x is 1.3m. ...
May 11, 2011 by Mark

physics
juana slides a crate along the floor of the moving van the coefficient of kinetic friction between the crate and van floor is 0.120 the crate has a mass of 56.8 kg and juana pushes with horizontal force of 124 N. if 74.4 J of work are done on crate and the delta x is 1.3m. ...
May 11, 2011 by Mark

physics
For shooting practice a person uses a pellet gun and an empty pop can. The pop can rests on a flat surface that has a coefficient of kinetic friction 0.500. The pellet has a mass of 0.140 kg and the pop can has a mass of 0.470 kg. After the pellet is fired and now inside the ...
November 14, 2016 by HELP ME!!!!!!

Science
Heyylllooo x can anybody help me with my science homework ? You have to " Use detailed particle diagrams and the big idea of energy transfer to explain how the ear defenders work" Also, we have to draw a picture of the ear defenders and describe all the bits of it. But I've ...
October 20, 2008 by Paiigee (:

Solar Energy
Family Cartman has a small house in the country side which is not connected to the grid. The place enjoys 4 equivalent sun hours. Therefore, Mr Cartman has decided to install an off-grid PV system in the house to supply the required electicity in the house. The house ...
November 14, 2013 by Anonymous

Physics
In the figure, a 6-kg box is sliding up an incline that makes an angle of theta=30 degree (with respect to the horizontal). As it slides up the incline, a kinetic frictional force fk acts on it. The acceleration of the block has magnitude 8 m/s2. Let the x+ direction point up ...
October 19, 2016 by Alexis

physics
A .400 kg bead slides on a curved wire, starting from rest at point A. If the wire in problem 61 is frictionless between points A and B (down 5m) and rough between B and C (up 2m), and if the bead starts from rest at A, (a) find the speed at B. (b) If the bead comes to rest at...
October 25, 2007 by Anonymous

computers
a) Different types of storage devices are optimal for different situations. Explain what situations are appropriate for the following devices and explain why: Hard disk Floppy disk RAM CD ROM Tape b) Explain the role of each of the following in determining the speed of a ...
May 11, 2008 by ed

chemistry
The enthalpy of formation of C2H5OH is -238.7 kJ/mol. What information does this reveal about the bonds in the molecule? A. Bond formation in C2H5OH from its elements only occurs in cold temperatures. B. Bond formation in C2H5OH from its elements does not occur. C. Bond ...
December 9, 2014 by Morgan

Physics
Hello im kinda new here and hoping someone can help me with this energy conservation question (I believe). A 2.10g- bullet embeds itself in a 1.30kg - block, which is attached to a spring of force constant 770 N/m . 1) If the maximum compression of the spring is 5.60 cm , find...
November 19, 2009 by Charles

Physics
Initially 1.200 mol of an ideal gas in a container occupies a volume of 3.50 l at a pressure of 3.30 atm with an internal energy U1 = 547.2 J. The gas is cooled at a constant volume until its pressure is 1.80 atm. Then it is allowed to expand at constant pressure until its ...
November 16, 2012 by Erika

physics
Initially 1.200 mol of an ideal gas in a container occupies a volume of 3.50 l at a pressure of 3.30 atm with an internal energy U1 = 547.2 J. The gas is cooled at a constant volume until its pressure is 1.80 atm. Then it is allowed to expand at constant pressure until its ...
November 18, 2012 by chelsea

General Chemistry I
When a 0.432g sample of a mixture of volatile hydrocarbons is burned in a bomb calorimeter with heat capacity of 3046 J/C, the temperature rises by 7.82C. How much energy (in KJ) is released during combustion. **I got that answered** 3046x7.82C=23819.72J the answer is negative...
October 31, 2012 by Ashley

astronomy
Before Dark Energy could be discovered, several preconditions needed to be in place. Tick all the factors below which were necessary for the discovery of dark energy. 1. Large format detectors for wide field imaging 2. Radio interferometers 3. Large telescopes such as Keck 4. ...
April 11, 2014 by keitanako

Physics
A 4.6-kg block slides down an inclined plane that makes an angle of 26° with the horizontal. Starting from rest, the block slides a distance of 2.6 m in 4.9 s. Find the coefficient of kinetic friction between the block and plane.
October 12, 2011 by Kayla

Physics
A 4.3-kg block slides down an inclined plane that makes an angle of 26° with the horizontal. Starting from rest, the block slides a distance of 2.1 m in 5.1 s. Find the coefficient of kinetic friction between the block and plane.
October 12, 2011 by Jen

Physics
A 4.0-kg block slides down an inclined plane that makes an angle of 25° with the horizontal. Starting from rest, the block slides a distance of 2.5 m in 5.4 s. Find the coefficient of kinetic friction between the block and plane.
June 27, 2016 by Maddie

physics
I need some one to help me out, how to calculate the total energy released by the lightning bolt; if a lightning dischar, 30c of charge move through a potential difference of 1.0 x10*8v in 2.0 x 10-2s.
January 4, 2010 by sofi

Physics
QUESTION: A 200 N/m, 5 m spring on a 20 degree incline is compressed 2.3 m and a 5 kg block is placed on it. If we neglect friction, how far up the incline will the block travel? How fast will it be traveling when it is 0.2 m up the incline? EQUATION: 1/2kx^2 + mgh + 1/2mv^2...
January 13, 2009 by Phil

Physics
QUESTION: A 200 N/m, 5 m spring on a 20 degree incline is compressed 2.3 m and a 5 kg block is placed on it. If we neglect friction, how far up the incline will the block travel? How fast will it be traveling when it is 0.2 m up the incline? EQUATION: 1/2kx^2 + mgh + 1/2mv^2...
January 13, 2009 by Phil

Physics
A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s after traveling some distance. If the coefficient of kinetic friction is 0.35, find that distance. I'm never sure which equation to use for these ...
December 3, 2007 by Lindsay

physics
1. An electric pump, used to obtain water from 20 metres below the ground, is marked 5000W. a) If the pump operates as rated, how much energy is used to pump water every second? b) Describe the energy conversions that take place when the pump is used. c) What is the maximum ...
April 6, 2015 by Jeffrey

physics
1. An electric pump, used to obtain water from 20 metres below the ground, is marked 5000W. a) If the pump operates as rated, how much energy is used to pump water every second? b) Describe the energy conversions that take place when the pump is used. c) What is the maximum ...
April 6, 2015 by Bafana

phy
A constant force does 12.0 Joules of work pushing a 350 gram block a distance of 2.5 meters up a ramp. The block starts from rest and reaches a speed of 4.75 m/s after being pushed for 2.5 m. The block’s potential energy increases by 5.0 J as it travels this distance. (a) ...
June 9, 2012 by ihsan

physics
An object of mass 26 kg is thrown straight upwards from the ground at 27 m/s. Due to air resistance (a non-conservative force), the object loses some of its initial energy during its trip to reach maximum height and only travels to a height above the ground of 16.3 meters. ...
October 31, 2012 by Chelsea

Maths
Calculate the output of a tidal barrage in mega watts if the basin is 30km2 and the tidal range is 6m. E = PA R^2g/2 P = 1020Kg m-3 g = 9.81m-2 R = 6m A = 30*10^6 The answer is 5.4*10^12j butwhat is this in mega watts Thank you jason If you use an area of A = 30*10^6 m^2, in ...
July 9, 2006 by jason

physics
Emily holds a banana of mass m over the edge of a bridge of height h. She drops the banana and it falls to the river below. Use conservation of energy to find the speed of the banana just before hitting the water.Express your answer in terms of some or all of the variables h ...
March 3, 2012 by Mrs G

science animals
I don't know the answers to these two questions. Could someone please help me? Here is the diagram: h t t p: // tinypic. c o m /r/ng92ds/3 (take spaces out of link) 1. The greatest biomass and energy isrepresented by which organisms? a. grass and bacteria and mold b. tadpole ...
August 31, 2009 by anna

english
how to make this thesis on correct placement(Today the price of gasoline is at record high, which brings the question of whether or not the U.S. should start drilling more onshore or offshore. In order to bring now jobs on the market, and lessen the burden of high gas price on...
February 21, 2010 by ram

physics
My answer for this question A 11.0 kg box is released on a 37 degreesincline and accelerates down the incline at 0.25 m/s^2. What is the coefficient of kinetic friction? My answer was 68.2 and it was incorrect.
October 15, 2010 by Anne

physics
A 75kg box is being pulled across the floor with a force of 465N.If the kinetic coefficient of friction is 0.57,what is the acceleration of the box?
December 10, 2011 by Auriel

physics
A 75kg box is being pulled across the floor with a force of 465N.If the kinetic coefficient of friction is 0.57,what is the acceleration of the box?
December 10, 2011 by Auriel

Physics
A 2.9 kg brick has a kinetic coefficient of friction of 0.33. what force must be applied to the brick for it to move at a constant velocity? Show work
October 17, 2015 by hamza

physics
A 550.27 N force is moving a 396.46 kg block at a constant velocity across a wooden plank. What is the kinetic friction force?
January 15, 2016 by zack

physics
A 550.27 N force is moving a 396.46 kg block at a constant velocity across a wooden plank. What is the kinetic friction force?
January 15, 2016 by Anonymous

science
what is the centeraltheme of the ' As Cheap as Coal" portion in Section 8 . 1 of your text. (Point: 1 ) The cost of renewable energy is too high for massive adoption with U. S. The cost of renewable energy is currently about the same or less than traditional coal generated ...
October 8, 2014 by willie jackson

Physics
1. Will the swinging wonder ever let 2 ball bearings go in and one ball bearing out with twice the v? Why? 2. A 10.0 kg object moving to the right with a speed of 4.0 m/s collides and sticks to a 4.0 kg object moving to the left with a speed of 4.0 m/s. How much energy is lost...
May 9, 2012 by Anonymous

Physics
1. Will the swinging wonder ever let 2 ball bearings go in and one ball bearing out with twice the v? Why? 2. A 10.0 kg object moving to the right with a speed of 4.0 m/s collides and sticks to a 4.0 kg object moving to the left with a speed of 4.0 m/s. How much energy is lost...
May 10, 2012 by Anonymous

Chemistry- Dr. Bob
Question 1 Calculate the wavelength (in nm) of the red light emitted by a neon sign with a frequency of 4.74 x 1014 Hz. A) 704 nm B) 158 nm C) 466 nm D) 633 nm E) 142 nm My answer: D.633 nm Question 2 How many photons are contained in a burst of yellow light (589 nm) from a ...
November 7, 2015 by Anonymous

IPC
okayy sooo this matching thing is wierd.. i don't understand it.. Zeroth First Second -Heat can change energy from one form to another, but the amount of energy in the universe is constant. -Two objects in thermal equilibruim will have no net heat flow between them. -The ...
May 3, 2011 by Please help!!

physics
The pendulum shown right has a mass of 0.26 kg and moves to the right from point B to point A. At point B the speed of the mass is 3.2 m/s. (i) What is the change in the gravitational potential energy in the motion from B to A? (ii) What is the mass speed at point A? (iii) If ...
March 8, 2013 by Meder

science
Distinguish between high-energy and low-energy You have to put this in context. We don't do homework for you, but will be happy to critique your thinking. You have to put this in context. We don't do homework for you, but will be happy to critique your thinking.
July 6, 2007 by al

Physics
A team of dogs drags a 151 kg sled 0.863 km over a horizontal surface at a constant speed. The coefficient of friction between the sled and the snow is 0.223.The acceleration of gravity is 9.8 m/s^2. 1. Find the work done by the dogs. Answer in units of kJ. 2. Find the energy ...
March 15, 2014 by Emeera

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