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October 23, 2014

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: 88,557

Physics
A 4 kg block slides down a rough inclined plane inclined at 30 with the horizontal. Determine the coefficient of kinetic friction between the block and the surface if the block has an acceleration of 1.2 m/s2.
October 6, 2012 by La La

physics
A toboggan slides down a hill and has a constant velocity. The angle of the hill is 6.50 with respect to the horizontal. What is the coefficient of kinetic friction between the surface of the hill and the toboggan?
June 30, 2013 by francis

physics
A toboggan slides down a hill and has a constant velocity. The angle of the hill is 6.70 with respect to the horizontal. What is the coefficient of kinetic friction between the surface of the hill and the toboggan?
September 23, 2014 by chidera

Biology
Which compound has the highest free energy and produces the most ATP when oxidized? A. acetyl CoA B. glucose C. pyruvate D. carbon E. both pyruvate and carbon I've spent the past hour looking for this answer within my textbook or through Google searches. I can't seem to locate...
September 29, 2009 by Rich

Chem
I have a question about maximum energy and maximum entropy. How would you know whether the tendency towards maximum energy favours to reactants or the products. Secondly, how would you know whether the tendency towards maximum entropy favours the reactants or products?
April 15, 2009 by Lena

Science
Is Nuclear energy man-made or natural and HOW? Nuclear energy used to make electricity is not natural but man made. HOW. That's a long long story. Here is a site that should help get you started. Post with more specific questions after you have studied this. http://www....
December 19, 2006 by Jenna

Physics
fill in the blank ( Energy and momentum unit) 1. the work done to stretch a spring is not equal to the to force multiplied by displacement because force is ____ as the spring stretches 2. A child goes down a slide at the playground, gaining speed as she goes. Her momentum ____...
July 3, 2014 by Liz

physics
Two balls of equal mass collide and stick together as shown in the figure. The initial velocity of ball B is twice that of ball A. (Take = 34.) (a) Calculate the angle above the horizontal of the motion of mass A + B after the collision. 1 Units are required for this answer...
February 25, 2011 by important

physics
A 58.4-kg person, running horizontally with a velocity of +3.84 m/s, jumps onto a 10.7-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (Indicate the direction with the ...
October 22, 2012 by Lindsay

Physics
A skier with a mass of 56 kg starts from rest and skis down an icy (frictionless) slope that has a length of 70 m at an angle of 32 with respect to the horizontal. At the bottom of the slope, the path levels out and becomes horizontal, the snow becomes less icy, and the skier...
February 16, 2012 by Michelle

physics
If I push a 10kg box with 50.0N of force forward and the box has a coefficient of kinetic friction of .25 what is the forward acceleration of the box?
November 29, 2009 by april

physics
A 1,440-N crate is being pushed across a level floor at a constant speed by a force vector F of 380 N at an angle of 20.0 below the horizontal, as shown in the figure (a) below. (a) What is the coefficient of kinetic friction between the crate and the floor? μk = Correct...
October 12, 2012 by Uzy

Science
A 0.2 kg object is released from rest at point A on a track that is one-quarter of a circle with radius 1.6 m, as shown in the figure. It slides down and reaches point B with a speed of 4.8 m/s. Then it slides on a level surface a distance of 3 m until it comes to rest at ...
May 15, 2013 by T

Chemistry!!
How do I go about doing this question? How much heat energy is involved when 5.58g of Fe metal reacts with excess oxygen to produce Fe2O3? Do you need the equation, and if so, what would tha be? Fe + O2 > Fe2O3? I don't think that is right though. And also, do you find ...
November 22, 2008 by Lulu

Science
How does energy and matter relate?
September 5, 2007 by Rosa

Science
How Does Heat Energy Travel?
October 16, 2007 by Louise

Science
WHat is "Massive Energy Structures"
November 29, 2007 by Leshay

science
how is light formed by energy?
March 10, 2008 by Ashley

ENERGY
WHAT HAPPEN WHEN A CANLE IS AIGHT
March 12, 2008 by AMBER

physics
what is the energy of motion called?
May 15, 2008 by leann

Physics
What is the energy of this type of radiation: 6.32 x 10^20 s^-1 ?
September 9, 2008 by Olivia

chemistry
what is the 'big idea of energy'???!
September 26, 2008 by -

science
what are 3 changes light energy can cause
September 29, 2008 by faejin

science
What is the Pro's and Con's of energy
October 2, 2008 by dani

Chemistry
what is the big idea of energy
November 8, 2008 by Chinchilla

science
what are 3 sources of heat energy
November 17, 2008 by shaeny

chemistry
what is the big idea of energy?
November 29, 2008 by john

6th grade
How is energy transported????
December 15, 2008 by Anonymous

7th grade
how do you know when something has energy?
April 15, 2009 by hanna

Science
What is an energy production pyramid??
September 9, 2009 by Elizabeth

5th grade
What is the definition of energy???
October 4, 2009 by Anonymous

science
How does a sunflower's energy get transferred?
January 4, 2010 by Lacey

science
where does activation energy come from
January 13, 2010 by dee

physics
what are nonrenewable energy sources?
February 11, 2010 by Natalia

science
how will ocean energy be used
February 22, 2010 by Anonymous

Science
Where does the energy go when you melt chocolate?
March 14, 2010 by Robert

science
what is the flow of matter and energy??
April 17, 2010 by suzzy

physics
As wavelength decreases, energy ?
July 31, 2010 by Cristina

chemistry
Properties of light energy
December 30, 2010 by Evans

modern physics
What is the energy equivalent of 2 e V?
April 28, 2011 by ashley --

science
HOW DOES ENERGY TRANSFER HAPPEN
November 15, 2011 by LINDSEY

science
HOW DOES ENERGY TRANSFER HAPPEN
November 15, 2011 by LINDSEY

science
HOW DOES ENERGY TRANSFER HAPPEN
November 15, 2011 by LINDSEY

physics
How does tidal energy work
February 15, 2012 by sathwika

physics
how do you solve for Potential Energy?
May 10, 2012 by dan

Physic
What is the source of the sun's energy?
August 7, 2012 by David

science
where does the earth loose energy to ??
October 17, 2012 by destiny

physics
The SI unit of energy can be expresses as what?
December 4, 2012 by elaine

heat energy
help me convert 0.093cal/gc to j/kg/k
March 20, 2013 by sophie

Biomechanics
If John was pushing a 300 kg desk across the floor with a constant acceleration of 3.5 m/s squared, how much force would he have to apply to the desk to maintain the acceleration, considering the coefficient of kinetic friction is 0.60?
February 17, 2011 by Jennifer

physics
A 75g person on skis is going down a hill sloped at an angle 30.the coefficient of kinetic friction between the skis and the snow is 0.15.how fast is the skier going 10s after starting from rest?
November 6, 2011 by Anonymous

physics
How much power must you exert to horizontally drag a 21.0kg table 15.0m across a brick floor in 20.0s at constant velocity, assuming the coefficient of kinetic friction between the table and floor is 0.500?
October 24, 2013 by HELP

physics
How much power must you exert to horizontally drag a 21.0kg table 15.0m across a brick floor in 20.0s at constant velocity, assuming the coefficient of kinetic friction between the table and floor is 0.500?
October 24, 2013 by becca

Physics
I am stuck on this question and not really sure what to do for it. I think that i can use this equation Q/dt=e*sigma*A*T^4 for it, but i'm not getting the right answer for it. Is this not the right equation? Question: Electronics and inhabitants of the International Space ...
April 5, 2011 by Eliz

chemistry
Doing review for an exam and I can't find how to do this problem in my notes. 2 SO2 + 2 Cl2 -----> 2 SOCl2 + O2 from a previous problem I solved: rate=k[SO2]^2[Cl2] k = 467.666666... or in sig. figs 467 Energy reaction: T= 25 C The activation energy (Ea) is 35.0kJ/mole ...
July 13, 2011 by energy diagram

chemistry
Doing review for an exam and I can't find how to do this problem in my notes. 2 SO2 + 2 Cl2 -----> 2 SOCl2 + O2 from a previous problem I solved: rate=k[SO2]^2[Cl2] k = 467.666666... or in sig. figs 467 Energy reaction: T= 25 C The activation energy (Ea) is 35.0kJ/mole ...
July 14, 2011 by energy diagram

Physics urgent
A rubber puck, initially travelling at 39 km/h, is sliding along an icy surface. How long (in seconds) would it take the puck to come to a complete stop if the coefficient of kinetic friction between the puck and the ice is 0.2?
October 8, 2009 by moe

Physics
An 80 kg hiker climbs a 1000 m high hill at a constant speed. If the hiker's body is 25% efficient, how many kg of fat does the hiker burn in climbing the hill? Given: heat of reaction of body fat is 37000 kilo joules per kilogram. I know that change in potential energy is 800...
February 15, 2014 by Bobby

math
find the linear function f(x)=mx +b, whose graph has the given slope and y-intercept slope is -13/9 and y-intercept is (0.-6) the linear function is f(x)=
September 20, 2010 by Anonymous

math
find the linear function f(x(=mx+b whose graph has the given slope and y intercept. slope is +19/15 and y-intercept is (0,-4) the linear function is f(x)=
September 21, 2010 by Anonymous

College Physics
1. A spring gun is made by compressing a spring ina tube and then altching the spring at the compressed position. A 4.97-g pellet is placed against the compressed and latched spring. The spring latches at a compression of 4.06 cm, and it takes a force of 9.12 N to compress the...
June 29, 2011 by Jane

Physics
A block is pushed across a horizontal surface with a coefficient of kinetic friction of 0.15 by applying a 150 N horizontal force. If the block accelerates at the rate of 2.53 m/s2 (squared), what is the mass of the block?
October 24, 2011 by Chris

PHYSICS (HELP!!!)
An object of mass m=80 kg moves in one dimension subject to the potential energy U(x)=λ4(x2−a2)2+b2x2.(1) Here we use λ= 9 kg/(m2s2), a= 9 m, and b= 719 kg/s2. (a) How many equilibrium points (stable and unstable ones) does this potential have? n= 1 2 3 4 5? (b...
November 1, 2013 by Anonymous

Physics Angular displacement
A car is traveling with a speed of 25 m/s along a straight, horizontal road. Each wheel has a radius of .25 m. If the car speeds up with a linear acceleration of 2.0 m/s^2 for 6.0 s. Find the angular displacement of each wheel during this time in revolutions.
July 1, 2012 by kaleb

Math
Explain how solving a linear inequality is similar to solving a linear equation. Explain how solving a linear is different from solving a linear equation.
February 8, 2011 by Cindy

calculus
The cost of running a ship at a constant speed of v km/h is 160 + 1/100*v^3 dollars per hour. a)Find the cost of a journey of 1000km at a speed of v km/h. b)Find the most economical speed for the journey, and the minimum cost. c)If the ship were to have maximum speed of 16 km/...
November 17, 2013 by jim_segs

Calculus Help Please!!!
Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answers to three decimal places.) ln(1 + x) ≈ x Y1= I ln(1+x)-x I Y2= 0.1 ...
April 4, 2014 by Tanya

physics
Two metal disks are taped to a meterstick. The mass of the meterstick is 460 grams. Disk 1 has a mass of 300 grams and is located at the 28 cm mark. Disk 2 has a mass of 500 grams and is located at the 64 cm mark. At what posi- tion along the meterstick should you place a ...
November 6, 2008 by Sandhya

Physics
The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -7.00 10-9 C placed at corner A and then at corner B.
January 30, 2012 by Anne

physics
The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -4.35 10-8 C placed at corner A and then at corner B.
July 4, 2012 by Natasha

Physics
The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -5 x 10-9 C placed at corner A and then at corner B
February 10, 2013 by Anonymous

Physics
The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -5 x 10-9 C placed at corner A and then at corner B. q1= 1.5e-9...
March 20, 2013 by Sarah

PHYSICS HELP!
The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -5 x 10-9 C placed at corner A and then at corner B. q1= 1.5e-9...
March 20, 2013 by Sarah

physics
A pulley of radius .10 m and having a rotational inertia of .30 kg-m^2 has a cord wrapped around it and attached to a 6.00 kg mass as shown. The pulley is free to rotate about a fixed axis through its center. The mass is allowed to fall from rest. What is the speed of the mass...
April 13, 2013 by Anonymous

Fossil Fuels
If we ran out of fossil fuels which could replace them. Hydroelectric Wind Solar GeoThermal No single one of these resouces, at their current levels, could totally replace out energy consumption. Hydroelectric yeah but which could almost do it None of these. To even come close...
November 15, 2006 by Jenny

Science
The galaxies in the universe are all flying away from each other. The speeds of nearby galaxies are proportional to the distance the galaxy is away from us. This relation, v=Hd is known as Hubble's law and the constant H is known as Hubble's constant. The evolution of our ...
May 20, 2013 by Abhishek Ranjan

Physics
A student puts on a Dresden Dolls disc in her cd player which spins at 1800 revolutions per minute. A compact disc has a mass of about 0.016 kg and a radius of 6.0 cm. a) What is the period of rotation in seconds? b) What is the frequency of the rotating disc? c) What is the ...
January 3, 2013 by Alex

Physics
A student puts on a Dresden Dolls disc in her cd player which spins at 1800 revolutions per minute. A compact disc has a mass of about 0.016 kg and a radius of 6.0 cm. a) What is the period of rotation in seconds? b) What is the frequency of the rotating disc? c) What is the ...
January 3, 2013 by Alex

Physics ( Calculus & Mecahnics )
A proton with mass m moves in one dimension.The potential-energy function is where and are positive constants. The proton is released from rest a x0 = a/b. (a) Show that can be written as U(x) = a --- [ ( x0/x )^2 - x0/x ] x0^2 Graph U(x). Calculate U(x0) and thereby locate ...
January 23, 2011 by Clark

Science
1) Why do scientists use models?(1point) Scientists use models to learn about things that are too small, too large, or to complex to observe directly. Scientists use models because doing so is always part of the scientific method. Scientists use models because they work ...
September 19, 2013 by Gabby

Chemistry
Assuming the dissolution of borax in water is a spontaneous reaction, do you expect the change in enthalpy to be positive or negative or are both signs possible? Explain your answer A. Neither, enthalpy does not change, the positive entropy for the dissolution, leads to G(G=...
May 7, 2007 by Linda

physics
While moving in, a new homeowner is pushing a box across the floor at a constant velocity. The coefficient of kinetic friction between the box and the floor is 0.25. The pushing force is directed downward at an angle θ below the horizontal. When θ is greater than a ...
February 8, 2013 by Anonymous

Physics
While moving in, a new homeowner is pushing a box across the floor at a constant velocity. The coefficient of kinetic friction between the box and the floor is 0.27. The pushing force is directed downward at an angle θ below the horizontal. When θ is greater than a ...
October 13, 2014 by Anonymous

AP Physics
I have two problems i don't understand if you could solve and show me what you did I would appreciate it :) 1.A 62.0-kg person, running horizontally with a velocity of +3.54 m/s, jumps onto a 13.4-kg sled that is initially at rest. (a) Ignoring the effects of friction during ...
December 5, 2010 by Deanna

physics
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume that ...
April 14, 2011 by monique

physics
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume that ...
April 15, 2011 by niki

physics
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume that ...
April 1, 2013 by Ashley

Phyics
In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a holding tank. Assume that ...
April 12, 2013 by HELP PLEASE

Physics
Use the exact values you enter in previous answer(s) to make later calculation(s). Energy-efficient windows are constructed with two panes of glass separated by an air gap (see figure below). In a typical window of this type, the air gap makes a huge difference in the rate of ...
July 31, 2012 by Sierra

Chem/Physics
Hi! I'm having lots of trouble figuring these two out.....if you could help that would be great- thanks!! 1. The half-life for the (first-order) radioactive decay of 14C is 5730 yr (it emits a β ray with an energy of 0.16 MeV). An archaeological sample contained wood that...
October 15, 2008 by Anne

Science
Harvesting energy from water, wind, and geothermal vents requires the use of (1 point) aquaculture engines*** mines turbines Which of the following is not among the advantages of generating nuclear energy? (1 point) It does not release carbon dioxide into the atmosphere. It ...
February 11, 2014 by Gabby

Science~!
Harvesting energy from water, wind, and geothermal vents requires the use of (1 point) aquaculture engines*** mines turbines Which of the following is not among the advantages of generating nuclear energy? (1 point) It does not release carbon dioxide into the atmosphere. It ...
February 11, 2014 by Gabby

Physics
A system undergoes a two-step process. In the first step, the internal energy of the system increases by 368 J when 144 J of work is done on the system. In the second step, the internal energy of the system increases by 24 J when 248 J of work is done on the system. (a) For ...
April 27, 2008 by Sally

chemistry
Can someone please tell me the tools needed to measure amount of substance, area, volume, density, energy, and pressure? Thanks in advance! It depends on what you are measuring and the quantity. For amount of substance, the mass can be measured with a balanace for relatively ...
September 27, 2006 by Boromir

physics
a farmer drives a 0.100 kg iron spike with a 2.00 kg sledge hammer. the sledge hammer moves at a speed of 3.00 m/s and comes to rest on the spike after each swing. assuming all the energy is absorbed by the nail and ignoring the work by the nail, how much would the nails ...
January 12, 2013 by tulip

mc questions !
Q:Which of the following are expressions for a type of potential energy? ( this question can have more than one answer !!!! ) a)mg(h_F-h_i) b)F_f*d c)(1/2)mv^2 d)(1/2)k*(final_x^2-initial_x^2) Q: If you are trying to figure out how high you can jump, which of the following ...
May 22, 2012 by emmie

phyics mc Q
Q:Which of the following are expressions for a type of potential energy? ( this question can have more than one answer !!!! ) a)mg(h_F-h_i) b)F_f*d c)(1/2)mv^2 d)(1/2)k*(final_x^2-initial_x^2) Q: If you are trying to figure out how high you can jump, which of the following ...
May 22, 2012 by emmie

Calculus
Using the Disk Method or washer method (im not sure which one) Find The volume of y=x^3 , y=1 , x = 2 revolving around the X axis
December 16, 2008 by Andrew

physics
You push a large 32 kg crate across the floor with a force F=330 N at an angle of 21 degrees below the horizontal. If the coefficient of kinetic friction between the crate and the floor is 0.45, what is the acceleration of the crate?
September 21, 2010 by Ka

Physics
A box weighing 600 N is pushed along a horizontal floor at a constant velocity with a force of 250 N parallel to the floor. What is the coefficient of Kinetic friction between the box and the floor?
October 13, 2010 by Kelsey

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