Get college assignment help at uniessay writers For practice in counting microstates, determine how many ways there are to arrange 2 quanta among 4 one-dimensional oscillators. (4 oscillators correspond to one-and-a-third atoms, so this doesn’t make physical sense.)
A 0.8 kg physics book with dimensions of 26.7 cm by 20.8 cm is on a table.What pressure does the book apply? Answer in units of Pa.
two identical loudspeakers are driven in phase by a common oscillator at 800 Hz and face each other at a distance of 1.25 m locate the points along the line joining the loudspeakers where relative minima of sound pressure amplitude would be experienced. v=343 m/s
use g = 9.8m/s2 for the following problem A block of mass 3.1 kg starts at rest and slides a distance “d” down a frictionless ramp inclined at 28*. The block compresses a spring that isresting on the ramp by 16 cm. The spring constant is 430 N/m. a. Calculate the distance “d” that the block travled down the incline.
A particle with charge and momentum , initially moving along the axis, enters a region where a uniform magnetic field extends over a width as shown in the figure. The particle is deflected a distance in the direction as it traverses the field. Determine the magnitude of the momentum.
It takes 23 hours 56 minutes and 4 seconds for the earth to make one revolution (mean sidereal day). What is the angular speed of the earth? 7.29×10-5 rad/s You are correct. Computer’s answer now shown above. Your receipt no. is 168-623 Previous Tries Assume the earth is spherical. Relative to someone on the rotation axis, what is the linear speed of an object on the surface if the radius vector from the center of the earth to the object makes an angle of 45.0° with the axis of rotation. The radius of the earth is 6.37×103 km. 3.28×102 m/s You are correct. Computer’s answer now shown above. Your receipt no. is 168-5680 Previous Tries What is the acceleration of the object on the surface of the earth in the previous problem?
6. A uniform bar AB, 4 m long and weighing 50 N is supported horizontally by cords fastened to its ends. The cord at B makes an angle of 30o with the vertical. A 200 weight is suspended 1 m from end A. Compute the tension T in the cord supporting the A end and the angle that the cord makes with the vertical.
20.4: If the field drops to zero in 0.0055s , what is the magnitude of the average emf induced in the loop?
20.2a: What is the flux through the loop’s plane if it is parallel to the field?
20.36a: What is the power loss in the lines if the energy is transmitted at 20KV ?
Get college assignment help at uniessay writers 3. A uniform pole 6 m long and weighing 150 N is supported by a boy 1 m from one end and a man 1.5 m from the other end. At what point must a weight of 450 N be attached so that the man supports twice as much as the boy?
1. A uniform, 0.2-kN board of length L has two objects hanging from it: 300 N at exactly L/3 from one end, and 400 N at exactly 3L/4 from the same end. a) What single additional force acting on the board will cause the board to be in equilibrium? b) Where should this force be acting on the board to cause the board to be in equilibrium?
A 75.0 kg man sits on a massless cart that is on a horizontal surface. The cart is initially stationary and it can move without friction or air resistance. The man throws a 5.00 kg stone in the positive direction, applying a force to it so that it has acceleration 3.50 m/s2 as measured by a nearby observer on the ground. What is the man’s acceleration during the throw, as seen by the same observer? Be careful to use correct signs.
Suppose the steel alloy is used for an automobile axle that rotates at an average rotational velocity of 600 revolution per minute (RPM). What is the maximum lifetime of continuous driving that are allowable at stress level of 310 MPa?
A child of mass 50.0 kg stands 2.00 m from the center of a horizontal circular disc of radius 4.00 m and mass 200 kg. The disc is mounted on a frictionless, vertical axis. Initially both the child and the disc are at rest. (Hint: so what is their combined initial angular momentum?) The child then begins to run in a counter clockwise direction. Shortly after the child starts running, it is observed that the disc attains a steady angular velocity of ô€€‚ = ô€€0.125rad/s in a clockwise sense. The moment of inertia of the flat disc is given by: I = 12 mR2
What mass of water (at 4.0 C) can be contained in a rectangular box whose dimensions are 10.0 cm by 5.00 cm by 1.00 cm? The density of water at 4.0 C is 1.000 X 10 kg/m-cubed.
A baseball pitcher can throw a ball with a speed of 50 m/s. He is in the back of a pickup truck that is driving away from you. He throws the ball in your direction, and it floats toward you at a lazy 20 m/s. What is the speed of the truck?
A 4.0 kg toy car can move along an x axis; Figure gives Fx of the force acting on the car, which begins at rest at time t=0. The scale on the Fx axis is set by Fxs = 5.0 N. In unit-vector notation,
Here is my work: The plank is 5.2m long, and overhangs 1.6m one end. It weighs 31.6kg. So first, the weight distribution of the plank, using the support at 1.6m. The long end measures 3.6m from the pivot. Divide the weight of the plank by its length. 31.6/5.2 = 6.077kg/metre length. The overhang end has (6.077 x 1.6) = 9.723kg. So the long end has (31.6 – 9.723) = 21.877kg. Now add the weight of the painter and the overhang of the plank = 73.1 9.723 = 82.823kg. Now the moments. The long end of the plank is (21.877 x 3.6) = 78.757 kg/m. Now we need to find how far out the painter can walk out. 78.757/82.823 = .9509 m without it tipping. Here is the problem: A uniform plank of length 5.20 m and mass 31.6 kg rests horizontally across two horizontal bars of a scaffold. The bars are 3.60 m apart, and 1.60 m of the plank hangs over one side of the scaffold. How far can a painter of mass 73.1 kg walk on the overhanging part of the plank before it tips? —my answer is wrong and i dont know what to do, please help!
Two forces, and , act at a point. The magnitude of is 9.80 , and its direction is an angle 57.0 above the x-axis in the second quadrant. The magnitude of is 6.20 , and its direction is an angle 52.7 below the x-axis in the third quadrant.
A 3.8 kg mass is connected by a light cord to a 3.0 kg mass on a smooth surface as shown. The pulley rotates about a frictionless axle and has a moment of inertia of 0.67 kg · m2 and a radius of 0.34 m.
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