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September 14, 2014

Search: Mechanics (Physics)

Number of results: 56,109

Physics
Did Einstein support quantum mechanics as being fundamental physics, or did he think quantum mechanics was inconclusive?
April 10, 2008 by Tammy

Physics
If the electron in a hydrogen atom obeyed classical mechanics instead of quantum mechanics, would it emit a continuous spectrum or a line spectrum?
April 10, 2008 by Kara

mechanics/motion
Can someone help me with mechanics. I need to check my answers
January 31, 2014 by Anonymous

English
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
May 7, 2009 by john browm

critical thinking
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
January 16, 2009 by Anonymous

CRT205 Quiz
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
February 27, 2009 by randy

Critical Thinking
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
June 6, 2009 by mary

Critical Thinking
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
July 31, 2009 by bere

english: crit. thinking
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
March 19, 2008 by rose

Calculus
Use newtons method and the function f(x)=x^2-a to derive the mechanics rule. Mechanics Rule for approaching sqrt(a), a>0, is Xn+1=1/2(Xn+a/Xn), n=1,2,3,...
July 20, 2012 by Elizabeth

math
At the Whistlestop Cafe, 15 of the 19 patrons are mechanics. If a sample of 8 is taken, what is the probability that exactly 5 patrons are mechanics? Round your answer to 4 decimal places.
June 3, 2010 by Anya

math
At the Whistlestop Cafe, 15 of the 19 patrons are mechanics. If a sample of 8 is taken, what is the probability that exactly 5 patrons are mechanics? Round your answer to 4 decimal places.
June 3, 2010 by Anya

Math
A car dealership employs 12 salesman and 28 mechanics. What is the ratio of salesman to mechanics?
August 12, 2014 by Keith

ENGLISH
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
May 7, 2009 by john doe

Physics
When do we have to give up on an old theory and try to come up with a new theory? Would it be when the old theory under goes changes? Also, how would I compose my answer to this question into a paragraph? This happens when we suspect that the theory is not perfect. E.g., the ...
August 7, 2007 by Soly

Physics Classical Mechanics
Thanks to everyone who helped me out. I got through.
December 10, 2013 by Hil

book report
im doing a book report in the 5th grade...and it said i have to give a summary, title,ect....and then it says slogan and mechanics..i dont know what slogan and mechanics mean....please help and give me a site to know what it means or tell me...thanks!!
September 8, 2008 by sheila

Physics Classical Mechanics
Hi Enjoy, Thanks. I got the acceleration right and the Force wrong. Need help on Question 2.
December 7, 2013 by Mets

Newtonian physics
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
November 12, 2008 by Anonymous

physics
Identify the area of physics that is most relevant to each of the following situations. Explain your reasoning. a. a high school football game b. food preperation for the prom c. playing in the school band d. lightning in a thunderstorm e. wearing a pair of sunglasses outside ...
August 21, 2006 by Anonymous

English
1. There are a lot of clubs in my school. 2. There are a lot of clubs in our school. (Are both correct? Can we use 'our' instead of 'in'?) 3. I study a lot of subjects like mechanics, ethics, and social studies. 4. I study a lot of subjects such as mechanics, ethics, and ...
April 6, 2010 by rfvv

quatum mechanics
In the double-slit experiment, consider the point at the middle of the final (detector) screen which is equidistant from the two slits. Suppose the intensity at that point is when either slit is open. Now for each of the three cases (a) bullet (b) wave (c) quantum mechanics (...
February 16, 2013 by preshy

Physics Mechanics
An object experiences an impulse o 43.78 N-s for a time period of 12.52 s. what is the force of the object?
September 4, 2013 by Yeng

Physics Mechanics
An object experiences an impulse o 43.78 N-s for a time period of 12.52 s. what is the force of the object?
September 4, 2013 by Yeng

Quick Question
What is Quantum Physics and Quantum Mechanics? Is there even a difference between them? thank you very much.
May 11, 2009 by James

Physics- Mechanics
A particle has r(0)= (4m)j and v(0)= 92 m/s)i If uts acceleration is constant and given by a=-(2 m/s^2)(i+j), at what time t does the particle first cross the x axis?
September 17, 2010 by Genevieve

Mechanics-physics
The acceleration of a particle is defined by a=e^(k(t^2)).its velocity is 2m/s at time=3s.Determine the value of k and velocity after 5s starting from rest.
March 30, 2010 by Aayush Vetwal

physics Classical Mechanics
Enjoy, How did you find the answer to question on the yoyo I got it wrong, and question number 2 on torque. Thanks.
December 7, 2013 by Mets

Mechanics - physics
A car of mass 400kg moving initial at 36km/h increases to 120km/h in 6sec, what is the force acting on the car?
January 4, 2013 by Precious

com 220
While correct grammar and usage are basic ecpectations in all kinds of writing, the larger aspects such as content and development are given far greater weight than style and mechanics, especially at the cllege level. In a 100-point paper, for example, perhaps 80% of the score...
November 21, 2008 by anonymoys

School
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
May 15, 2009 by John

crt
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
October 2, 2009 by jag

Physics-Mechanics
A pulley is massless and frictionless. 3 kg, 2 kg, and 6 kg masses are suspended. What is the tension T1 in the string between the two blocks on the left-hand side of the pulley?
September 24, 2010 by Genevieve

crt 205
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
January 9, 2009 by Jacob

Critical Thinking
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
August 10, 2009 by Sablan

crt thinking
Over time, non-specialists are usually able to assimilate radically new scientific ideas, even though these ideas may seem strange when they are initially introduced. Such was the case with Newtonian physics; when Newton proposed his ideas regarding motion and gravitation in ...
November 14, 2009 by Anonymous

mechanics-physics
A lorry of mass 1000kg moving initially at 10m/s increases to 25m/s. In 5sec the on the lorry is 15,000Newtons; calculate: (a) Acceleration (b) The distance covered
January 5, 2013 by precious

physics-mechanics
A 1.0 kg mass weighs 9.8 N on Earth's surface, and the radius of Earth is roughly 6.4 x 10^6 m. Calculate the average density of Earth
December 27, 2012 by Rebecca

mechanics - physics
A bullet of mass 3.0g moving at 500m/s hits a tree and pierced 20cm into the trunk of the tree.what is the resistimg force offered by the tree?
January 5, 2013 by precious

physics
how does a ticker timer work and how can a ticker timer be used to measure the displacement and velocity of a moving object in a mechanics practical?
March 10, 2009 by pipa

mechanics -physics
A car moved at 15m/s for 2minutes, afterwhich it moved at 18m/s for 45seconds,calculate the average velocity of the car?
January 2, 2013 by precious

Science
I would recommend to check out a website called physmatixsolve They helped me with a tough question i got in my Physics homework, classical mechanics. The amazing thing is that they really sent me the solution in less than 24 hours, which is pretty neat.
April 25, 2011 by Dan

Physics Classical Mechanics
Three smooth balls of iron of mass m and radius R are placed inside a tube of diameter 3R (see Figure). Find the magnitude of the forces (A, B, C and D) exerted by the sides of the container on each ball. Write your answers in terms of m, g and R. A= B= C= D=
November 27, 2013 by Anonymous

Physics Classical Mechanics
MIT A uniform disc of mass m and radius r is acted upon by three forces. find the magnitude of angular acceleration and the sense of rotation. Three different cases. force F, 3F, 2F. need help, not doing so good.
December 6, 2013 by Hil

Mechanics _ physics
A uniform bar 1m long is pivoted at the centre has a mass of 3kg. It is acted upon by a conquer which cause to possess an angular acceleration of 6rad/sec^2; calculate a. The moment of inertia of the bar b. The torque on the bar
February 14, 2013 by Precious

Physics
What are some examples of the principles of mechanics in car crashes and car safety? I can only think of one, friction reducing the traction of the tires. Can you help me come up with two or three more examples? Thank you.
November 13, 2007 by Jacob

Mechanics problem - Newtons laws - resultant force
I have this mechanics problem. Please help me solve it. Rory, Aurora and Raoul are three lions fi ghting over a piece of meat of mass 12 kg. Each lion exerts a horizontal pull. Rory pulls with a force of 800 N. Aurora, who is 120degrees to Rory's right, exerts a force of 400 N...
April 24, 2012 by John

Physics- Mechanics
Before throwing a 0.821 kg discus, an athlete rotates it along a circular path of radius 1.19 m. The maximum speed of the discus is 18.7 m/s. Determine the magnitude of its maximum radial acceleration. Answer in units of m/s2.
September 17, 2010 by Genevieve

Mechanics
What is Viscosity
January 17, 2013 by Precious

Mechanics
What is Viscosity
January 17, 2013 by Precious

Mechanics
What is Viscosity
January 17, 2013 by Precious

mechanics
what is viscousity
February 12, 2013 by juiet

mechanics
what is viscousity
February 12, 2013 by juiet

Physics
Which of the following best describes kinematics? a) Kinematics is a part of mechanics that involves the description of motion. b) Kinematics is the branch of physics that deals with the motion of objects and the action of forces on the objects. c)Kinematics is the study of ...
September 14, 2012 by Kevin

Physics (Mechanics)
Marie shoots an arrow vertically upward at a sandhill crane. If the arrow travels to a maximum height of 99.5 meters, calculate how fast it was shot. And, for how much time was Marie's arrow in the air?
January 28, 2012 by Sabrina

physics-mechanics
a person walks 400m north along one side of a rectangular field and then 300 m along the other side, the walk takes 10 min, calculate the av. velocity of the person?
August 26, 2011 by gina

physics-mechanics
a person walks 400m north along one side of a rectangular field and then 300 m along the other side, the walk takes 10 min, calculate the av. velocity of the person?
August 26, 2011 by gina

Physics/mechanics
I have to do calculations based upon a bow shooting an arrow vertically, and I have to state any assumptions i'm making. Am I right to cite air resistance as negligible; and that the displacement will start 2m above the ground (not at ground level)? The rest I'm ok with.
October 1, 2008 by charlie

mechanics
center og gravity of a circle
July 17, 2011 by komal

solid mechanics 1
a load P is supported
October 12, 2011 by julia

solid mechanics
what is a failure theory?
February 1, 2014 by Anonymous

Physics-mechanics
Find the speed and period of a satellite that orbits Mars 175 km above it's surface. (The average radius of Mars is 3.40 x 10^6; and it's mass is 6.42 x 10^23. Use all necessary formulas and show all clear-working, to enable me understand how you arrived at your answer.
December 27, 2012 by Rebecca

Physics-mechanics
Find the speed and period of a satellite that orbits Mars 175 km above it's surface. (The average radius of Mars is 3.40 x 10^6; and it's mass is 6.42 x 10^23. Use all necessary formulas and show all clear-working, to enable me understand how you arrived at your answer.
December 27, 2012 by Rebecca

Mechanics
If an object weighs 39.2 N on earth, what is its mass?
June 14, 2010 by Anonymous

Mechanics
If an object weighs 39.2 N on earth what is its mass
June 15, 2010 by Anonymous

Mechanics
If an object weighs 39.2 N on Earth, what is its mass?
July 6, 2010 by Anonymous

MECHANICS
17. In which of the following units is acceleration expressed?
September 27, 2010 by Anonymous

mechanics
how can construct a fuel cell engine
January 7, 2011 by pradee

Mechanics
What does a polar moment of inertia depend on?
October 3, 2011 by Jessica

solid mechanics
the maximum stress intensity will be
February 4, 2014 by sabin

Engineering
Phase diagram for soil Mechanics?
August 29, 2014 by Ally

Physics (Mechanics)
An electron of mass 9.1E-31 kg is released from rest at a distance of 7.1 E-10 m from a fixed electron. The force on the movable electron is given by the function F = 2.3E-28/r^2, where r is the distance between the electrons. Find the maximum velocity (in meters/second) of ...
April 12, 2012 by andrew

Physics (Mechanics)
A 10-kg crate on a ramp is inclined at 30 degrees from the horizontal and released. The coefficients of friction between them are .48 (coefficient of static friction) and .28 (coefficient of kinetic friction). a) Does the block slide? b) What then is the actual friction force...
September 30, 2012 by Anonymous

English
Which of these is a matter of "mechanics"? a)punctuation b)capitalization c)spelling
November 5, 2009 by Kayla

science
Can someone help me with mechanics. I need to check my answers
January 31, 2014 by Anonymous

PHYSICS
a 60 km/h wind is blowing in a direction 30 degrees north of east. a. what is the component of the velocity oriented to the east? b. what is the component of the velocity oriented to the north? The component east is 60cos30. For both a and b, draw a diagram with a horizontal ...
November 11, 2006 by Katrina

Physics-Mechanics
horizontal surface. The block is connected by a cord passing over a pulley to another block of mass 5.53 kg which hangs in the air, as shown on the following picture. Assume the cord to be light (massless and weightless) and unstretchable and the pulley to have no friction and...
September 22, 2010 by Genevieve

mechanics
what is the kinetic energy of an object that has a mass of 20nkilograms and a speed of 2.8 m/s
July 18, 2011 by tina

Physics (Classical Mechanics)
Hey.. I dont know exactly how to get the solution for this one... doubleudoubleudouble dot physikerboard.de/files/fahrzeug_223.jpg (its a sketch i made with paint^^) We assume there are no frictions at all and we only look at the masses M, m1 and m2. I want to know how much ...
November 18, 2010 by Toby

Mechanics _ physics
A wheel rotating with an angular velocity of 16rad/sec is slowed to an angular velocity of 4rad/sec by an angular acceleration of 2rad/sec^2.find a. The angle turned in the process of slowing down b. The time required
February 14, 2013 by Precious

language mechanics
your term paper in my opinion,is very good. A); B), C). D)none is it (D)
March 23, 2010 by Anonymous

Mechanics
Why does an anisotropic shaft split axially under excessive torque?
October 2, 2011 by Arnold

Mechanics
When a problem is statically indeterminate, what additional equations do you need to solve?
October 4, 2011 by Jessica

maths
prove that if a is not equal to zero and if a * b = a * c and a ^ b = a ^ c then b = c [Hint: calculate a * (b-c) and a ^ (b-c) vectors mechanics
February 6, 2013 by jenny

mechanics
what force is required to accelerate a body with a mass of 18 kilograms at a rate of 36 m/s2?
April 23, 2013 by rea hardy

solid mechanics
describe in brief MOHR's circle for biaxial stresses.
February 1, 2014 by Anonymous

Physics-mechanics
Two spheres are placed so that their centers are 2.6m apart. the force bvetween the two spheres is 2.75 x 10 to the power of negative 12 Newton.What is the mass of each sphere if one sphere is twice the mass of the other sphere?
December 24, 2012 by Rebecca

Physics-mechanics
A 1.0 kg mass weighs 9.8 N on Earth's surface, and the radius of the Earth is roughly 6.4 x 10^6 m. Calculate the average density of Earth. (Show how you would calculate for density; don't just give the answer because L wan't to understand how you arrived at your answer).
December 27, 2012 by Rebecca

Physics Classical Mechanics
Greco I am having a problem with the turntable (gyroscope) problem. The angular speed is 300 radians per second. I tried a couple of formulas including one by you. Maybe I am not converting the units properly. I could use some help. I tried several attempts all were wrong. I ...
November 25, 2013 by Hil

language mechanics
"this homemade ice cream tastes great"she exclaimed A); B)! C)? D)none is it (B)
March 23, 2010 by Anonymous

Language Mechanics
Your term paper in my opinion, is very good. Is this written correctly?.
August 30, 2011 by Anonymous

mechanics
resolve a force of 120n acting at an angle of 30degree with respect to horrizontal.
July 28, 2012 by krunal

Mechanics that is physics
A car moved 15meter per sec.for 2min,after which it moved at 18meter per sec.for 45 sec,calculate the average velocity of the car.
January 18, 2013 by victoria

physics-mechanics-collisions,momentum, impulse
You are at the controls of a particle accelerator, sending a beam of 2.40107 protons (mass ) at a gas target of an unknown element. Your detector tells you that some protons bounce straight back after a collision with one of the nuclei of the unknown element. All such protons...
October 28, 2012 by HANNE

Physics (Mechanics) - unanswered
An electron of mass 9.1E-31 kg is released from rest at a distance of 7.1 E-10 m from a fixed electron. The force on the movable electron is given by the function F = 2.3E-28/r^2, where r is the distance between the electrons. Find the maximum velocity (in meters/second) of ...
April 13, 2012 by andrew

Physics - Mechanics and Ocsillatory Motion
An 8.70 kg block slides with an initial speed of 1.56 m/s up a ramp inclined at an angle of 28.4 with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.62. Use energy conservation to find the distance the block slides before coming to rest...
November 10, 2010 by Sara

physics
A hydrogen atom is in its n = 6 excited state. Determine, according to quantum mechanics, each of the following: (a) The total energy =eV (b) The magnitude of the maximum angular momentum the electron can have in this state =J s (c) The maximum value that the z component of ...
December 1, 2006 by MIke

physics
A hydrogen atom is in its n = 6 excited state. Determine, according to quantum mechanics, each of the following: (a) The total energy =eV (b) The magnitude of the maximum angular momentum the electron can have in this state =J s (c) The maximum value that the z component of ...
December 2, 2006 by MIke

Physics-mechanics
A satellite is placed in orbit, with a radius that is half the radius of the Moon's orbit. Find the period of the satellite in units of the period of the Moon. (sketch and analyze the situation, show all working so I can understand how you arrived at your answer).
December 27, 2012 by Rebecca

Physics-mechanics
A satellite is placed in orbit, with a radius that is half the radius of the Moon's orbit. Find the period of the satellite in units of the period of the Moon. (sketch and analyze the situation, show all working so I can understand how you arrived at your answer).
December 27, 2012 by Rebecca

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