# Physics-mechanics

73,652 results

### Physics

Did Einstein support quantum mechanics as being fundamental physics, or did he think quantum mechanics was inconclusive?

### 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?

### mechanics/motion

Can someone help me with mechanics. I need to check my answers

### 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 ...

### 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 ...

### 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 ...

### 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 ...

### 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 ...

### 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 ...

### 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,...

### 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.

### 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.

### Fluid Mechanics

Hello Can someone can give me good links where i can find the: 1)domestic 2)industrial applications of fluid mechanics ? Tnx a lot.

### Math

A car dealership employs 12 salesman and 28 mechanics. What is the ratio of salesman to mechanics?

### 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 ...

### Fluid Mechanics

I have a question in fluid mechanics...and i need to know the pressure in an air-filled drain? Is it the atmospheric pressure? Thanks in advance

### 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 ...

### Physics Classical Mechanics

Thanks to everyone who helped me out. I got through.

### 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 don't know what slogan and mechanics mean....please help and give me a site to know what it means or tell me...thanks!!

### Physics Classical Mechanics

Hi Enjoy, Thanks. I got the acceleration right and the Force wrong. Need help on Question 2.

### 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 ...

### 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 ...

### 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 ...

### 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 (...

### 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?

### 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?

### Quick Question

What is Quantum Physics and Quantum Mechanics? Is there even a difference between them? thank you very much.

### 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?

### 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.

### 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.

### 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?

### Physics (Mechanics)

A bat makes contact with a ball 0.8 meters above the ground. The ball then travels with a speed of 22 m/s, moving up. How high does it go?

### 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...

### physics: mechanics and heat

Two strings support a small 8kg body. find the tension in the strings if they both make 30° with the vertical.

### 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 ...

### 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 ...

### 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?

### 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 ...

### 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 ...

### 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 ...

### 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

### physics (mechanics)

the potential energy of a system of two particle separated by a distance r is given by u(r) = A/r , where A is constant . find the radial force Fr that each particle exerts on the other

### 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

### 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?

### 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?

### 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?

### Physics mechanics

Car travelling speed 30 km/h stops after 8m distance through brakes.If same car moves at 60km/h. what is the stopping distance

### physics (mechanics)

find the constant force necessary to accelerate a car of mass 1000kg from 15m/s to 20m/s in 10s against resistance of 270N ? pls show work (answer is 770N just in case to check)

### 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.

### 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=

### 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.

### 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

### 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.

### 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...

### 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.

### 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 ...

### Mechanics

What is Viscosity

### Mechanics

What is Viscosity

### Mechanics

What is Viscosity

### mechanics

what is viscousity

### mechanics

what is viscousity

### 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?

### mechanics

a block of mass m1......

### 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?

### 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?

### 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.

### 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.

### 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.

### mechanics

center og gravity of a circle

### solid mechanics 1

a load P is supported

### solid mechanics

what is a failure theory?

### mechanics

find the angle between A=-5i-3j+2k and B=0i-2j-2k?

### physics: mechanics and heat

The following three forces act on a particle: 30N at 30° with the x- axis, 50 N at 135° with the x-axis, and 20N along the negative x-axis. Find the fourth force on the particle which will keep it in equilibrium. Draw it's free-body diagram.

### 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 ...

### Mechanics

If an object weighs 39.2 N on earth, what is its mass?

### Mechanics

If an object weighs 39.2 N on earth what is its mass

### Mechanics

If an object weighs 39.2 N on Earth, what is its mass?

### MECHANICS

17. In which of the following units is acceleration expressed?

### mechanics

how can construct a fuel cell engine

### Mechanics

What does a polar moment of inertia depend on?

### solid mechanics

the maximum stress intensity will be

### Engineering

Phase diagram for soil Mechanics?

### 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...

### 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 ...

### English

Which of these is a matter of "mechanics"? a)punctuation b)capitalization c)spelling

### science

Can someone help me with mechanics. I need to check my answers

### Physics (Classical Mechanics)

Hey.. I don't 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 ...

### 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...

### Physics Fluid Mechanics

HELP! a 650kg weather balloon is designed to lift a 4600kg package. what volume should the balloon have after being inflated with helium at 0°C and 1atm pressure to lift the total load? (hint. use the density value of helium) thanks!!

### Physics mechanics

Two identical 17.7-kg balls, each 23.9 cm in diameter, are suspended by two 35.0-cm wires as shown in the figure (Figure 1) . The entire apparatus is supported by a single 18.0-cm wire, and the surfaces of the balls are perfectly smooth. what is the tension in the top wire?

### mechanics

what is the kinetic energy of an object that has a mass of 20nkilograms and a speed of 2.8 m/s

### 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

### physics (mechanics)

find the constant force necessary to accelerate a car of mass 1000kg from 15m/s to 20m/s in 10s against resistance of 270N ? pls show work (answer is 770N just in case to check) ive been asking this question 4 times still no one answer . someone pls do .

### 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?

### language mechanics

your term paper in my opinion,is very good. A); B), C). D)none is it (D)

### Mechanics

Why does an anisotropic shaft split axially under excessive torque?

### Mechanics

When a problem is statically indeterminate, what additional equations do you need to solve?

### 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

### mechanics

what force is required to accelerate a body with a mass of 18 kilograms at a rate of 36 m/s2?