PHYSICS

 

An x-ray photon whose initial frequency was 1.5 1019 Hz emerges from a collision with an electron with a frequency of 1.2 1019 Hz. How much kinetic energy was imparted to the electron?

Consider nitrogen (N2) gas at room temperature and atmospheric pressure. Using the numerical values given in the text, find the average number of N2 molecules striking a 1-cm^2 area of the container walls per second. Number of seconds per year: 3.15*10^7. Average number of molecules per 1cm^3 box: 2.5*10^9. The answer this this problem is 2.1*10^27 molecules sec^-1 m^-2. Can you please tell me how to solve it.

Find the force and moment which must be applied at 0to hold the light bar shown in equilibrium. Force 50newton moment 0.3m

In what way Schrodinger’s equation is analogous to Newton’s second law of motion?

Can we determine the position of the particle using the wave function?

How does a wave function represent the state of the particle?

what is the potential energy of CsCl at equilibrium , if the separation between cesium and chloride atom is 3.56 armstrong, A=1.76 and n is 11.5?

Find the momentum in kg m/s .A tennis ball of mass 60g travelling at 180km/h

1. The resistance of a particular carbon resistor obeys the equation

where and. In a liquid helium cryostat, the resistance is found to be exactly 1000 ?. What is the temperature?1.

The resistance of a particular carbon resistor obeys the equation

where and

. In a liquid helium cryostat, the resistance is found to be exactly 1000 ?. What is the temperature?

Plot this question in Python. Write code for it.A current of 2A flows in an infinite wire placed at z axis. Plot the magnetic field lines at z = 0 plane. If the current flows in a circular loop of radius 1mm on the z = 0 plane, plot the magnetic field lines at y = 0 plane. (Optional - Try plotting a 3D view of the above mentioned field lines.)

A current of 2A flows in an infinite wire placed at z axis. Plot the magnetic field lines at z = 0 plane. If the current flows in a circular loop of radius 1mm on the z = 0 plane, plot the magnetic field lines at y = 0 plane. (Optional - Try plotting a 3D view of the above mentioned field lines.)

Plot the heatmap of following function at 3 planes : x = 3 and z = 1. f(x,y,z) = (x^2)*(y^3)*z for -5< x,y,z < 5 Also plot the direction (3D) at which the function changes the most. (unit vectors directions)

Write a Python Code for this problem.A current of 2A flows in an infinite wire placed at z axis. Plot the magnetic field lines at z = 0 plane. If the current flows in a circular loop of radius 1mm on the z = 0 plane, plot the magnetic field lines at y = 0 plane. (Optional - Try plotting a 3D view of the above mentioned field lines.)

A grounded sphere of 2 mm radius is placed in the centre of a 10mm x 10mm x 10mm box. 5 point charges, -2C, -1C, 1C, 2C, 3C are placed at random positions on the z = 0 plane in the box (outside the sphere). Draw the charges (color coded), E field lines and Potential distribution on the z = 0 plane. (Positions of the charges can be taken of your choice.) (Make proper color mapping for each charges, field lines.)

Figure 1 shows four charged particles P, 0. R and S positioned at the four comers of a rectangle. The charges on the particle and the cistance of the particles from the centre C of the rectangle are as depicted in Figure 1.

A stone is droped in a still lake causin circular ripples to spread over the surface. If the radius of the circle increases at the rate of 0.5 m per sec, how fast is the area of the ripple increases when the radius of the ripple is 20 m?

Calculate the magnitude of the tension T and the angle for which the eye bolt will be under a resultant downward force of 15 kN.

Simple Harmonic Motion – Mass on a Spring (Lab Simulation) Lab Simulation Use the online resource (web link below) to simulate the simple harmonic motion lab. https://phet.colorado.edu/sims/html/masses-and-springs-basics/latest/masses-and-springsbasics_en.html Objectives: Develop a thorough understanding of SHM Learn to calculate the spring constant from a known mass and period of a SHM Learn to calculate an unknown mass from the spring constant and period of a SHM Learn to compare theoretical (calculations) vs experimental (simulated) dataset for accuracy Learn to perform error analysis from a dataset Lab Activity/Report Open the above link and select the “Lab” option from the menu by clicking on it. Use the known mass to find the spring constant by measuring the period of the oscillations (measure time for 10 oscillations and divide by ten). Compare the spring constant found this way with the spring constant obtained by measuring the distance that the spring stretches. Calculate the percentage difference between these two methods. Which method is more accurate? Using the known spring constant, find out the three (3) unknown masses by measuring their period of oscillation. Write a short lab report of this activity using the format used in previous lab reports.

A smooth uniform rod of length and mass M has two identical beads of negligible size, each of mass m, which can slide freely along the rod. Initially, the two beads are at the Centro of rod and the system is rotating with an angular velocity w about an axis perpendicular to the rod and passing through midpoint of the rod (see fig.). There is no external force. When the two beads reach the end of the rod, the angular velocity of the system is…

Q3. We want to look at the angular momentum structure of one electronic level of an atom. a. The atom has orbital angular momentum L, electron spin angular momentum S and nuclear angular momentum I. For very large magnetic fields B, what are the quantum numbers and energies? b. In addition to the static B field along the z axis, we add a transverse oscillating magnetic field. Which states are now coupled by the oscillating field, i.e. between which states are transitions induced?

A cyclist is standing still at the top of a hill and then begins to coast down the hill. The mass of the cyclist and bicycle is 64 kg total. The cyclist’s gravitational potential energy is converted into kinetic energy with an efficiency of 52%. What is her speed when she reaches a point that is a vertical distance of 10 m lower than the point at which she started? Show all your work

A stone of mass 1 kg is attached to a wire of length 50 cm. The maximum tension in the wire when the system is vertically in circular motion 58.8 N. What is the velocity of the stone at the highest point of the circle?.

What is the least amount of work that must be performed to freeze one gram of water at 00C by means of refrigerator? Take the temperature of the surrounding as 370C. How much heat is passed on to the surrounding during this process?

2-14. A projectile is fired with initial speed vo at an elevation angle of a up a hill of slope P(a > P) - (a) How far up the hill will the projectile land? (b) At what angle a will the range be a maximum? (c) What is the maximum range?

Set up the circuit shown with one of two identical bulbs
(look for the same type of bulbs; Ex: spherical ones).
Then change the circuit to use the other of the two
identical bulbs. Is the brightness of the two bulbs about
the same?
Can you conclude that the bulbs are nearly identical?
2. Set up the circuit shown below using the two identical
bulbs. This way of connecting bulbs to the battery is
called a series connection. Draw arrows on the figure
to indicate the direction you believe that the current is
flowing in the circuit.
Are the two bulbs brighter, dimmer, or the same
brightness as the one bulb circuit in Question 1?

Object A of mass m1 is moving at a velocity v1 to the right. It collides and sticks to object B of mass m2 moving in the same direction as object A with a velocity v2. After collision, the two objects have a velocity equal to (1/2)(v1 + v2). What is the relationship between m1 and m2?

Two objects A and B have velocities v1 and v2 and masses m1 and m2. If |v1| < |v2| and the two objects have equal kinetic energies, which of the following is true? A) The two objects have momenta with equal magnitudes B) The magnitude of the momentum of A is greater than the magnitude of the momentum of B C) The magnitude of the momentum of A is smaller than the magnitude of the momentum of B D) The two objects have equal masses E) Mass of object A is smaller than mass of object