Proton moving with V=2*106 m/s speed in a magnetic field of B=3T is under the effect of 4*10-12 N force. What is the angle between the magnetic field and the velocity of the proton.

A 0.100 mm-wide slit is illuminated with plane waves from a helium-neon laser of wavelength 0.699 microns. Find the distance from the zeroth-order maximum to the first two irradiance nulls in mm when the pattern is observed on a wall Z=1.0m away.

What is harmonic vibration? Why we needed it ?

. A jeep is traveling on a straight road and it leaves a junction at time t = 0 second. It is then accelerates at 4 m/s 2 for 4 seconds. Suddenly, when the driver shifting the gears, there is no acceleration of the jeep for 1 second. After that, it is continue to accelerates at 5.5 m/s 2 for 5 seconds and maintain the speed it reached. On the other hand, a car leaves at the same junction as jeep at time t = 0 second. The car accelerates from rest to 25 m/s in 20 seconds and then maintain the speed of 25 m/s. The car passes the jeep as they both pass a traffic light. (i) Sketch speed vs. time graph to illustrate the motion of the jeep and the car by using same diagram. (ii) Find the distance of the traffic light from the junction. (iii) After 4 seconds from the constant speed, both jeep and car decelerates to rest in T seconds. Determine the value of T. (iv) If the car in this motion has zero speed at some instant in time, is the acceleration necessarily to be zero at the same instant? Prove your answer with some calculation example. (3

A train at a constant 48.0 km/h moves east for 42.0 min, then in a direction 47.0° east of due north for 27.0 min, and then west for 52.0 min. What are the (a) magnitude and (b) angle (relative to east) of its average velocity during this trip?

The situation is: using two gliders, 4 collisions on a linear track are observed. In each collision, the initial speed of glider 2 is zero. Collisions 1 and 2 use an elastic band and a bumper attachment on the gliders to create an elastic collision where the two gliders touch for just a moment and the area of contact is minimal. Collisions 3 and 4 use a needle and wax receptacle so that during the collision, the needle bites into the wax and the two gliders stick together.

I have a position-time graph with about 100 lines of data (pre and post collision). I have access to the mass of each glider (with uncertainties). How would I find the answer to this type of question:

Based on the experimental data, 1. calculate the total momentum (in kg·m/s) of the system after the collision; 2. calculate the uncertainty of the total momentum (in kg·m/s) of the system after the collision.

What are the different ways that I can minimize error in oscillation of a rolling sphere in a bowl lab?

1.It takes light 8 minutes and 20 seconds to reach the Earth from the Sun. The speed of light in a vacuum is a constant at 3×108??. Assume Earth’s orbit is circular.a.Whatis the distance from the Sun to the Earth?b.Calculate the mass of the Sun

2.This past week SpaceX and NASA teamed up to launch two astronauts to theInternational Space Station (ISS)from Cape Canaveral for the first time since 2011.The ISShas a mass of4.08×105??and orbits the Earth on acircular path at an altitude of 400km (note that the radius of Earth is 6000 kmand mass of the Earth is 6×1024??).a.How fast is the ISS moving?b.How many orbits does the ISScomplete in one day?c.Determine the work required to put the ISS into this orbit assuming that it started from rest at the surface of the earth.

Two charged particles are located in the X-Y plane.

Particle 1 carries -0.200 uC of charge and is located at x= 3.55 m and y = 1.21 m.

Particle 2 carries 0.920 uC of charge and is located at x = -3.47 m and y = 1.65 m.

Find the Y component of the Electric Field at a point located at x = 2.87 and y = 3.96 m, in Newtons per Coulomb.

A spring is hanging motionless from the ceiling of a room on the earth. You attach a mass to the end of the spring and after releasing the mass, you observe that the spring extends a distance  before momentarily coming to a halt. What then must be the distance below just the spring's equilibrium position to the new equilibrium position of the spring-mass system?

A spring is hanging downward from the ceiling of a room on the earth, has nothing attached to the end, and is motionless. Is the spring in equilibrium?

For an object moving under simple harmonic motion while attached to a spring, when is the speed the greatest?

A block is attached to a spring and is hanging downward motionless from the ceiling of a room on the earth. Is the spring in equilibrium?

For an object moving under simple harmonic motion while attached to a spring, when is the net force the greatest?

For an object moving under simple harmonic motion while attached to a spring, when is the net force zero?

What is the term for the object's maximum possible displacement when moving under simple harmonic motion?

If at a certain point in time the displacement is positive for an object moving under simple harmonic motion, what is the sign of its acceleration?

For an object moving under simple harmonic motion while attached to a spring, when is the speed zero?

For an object in simple harmonic motion, what is the length of time required to return to its original position and to be traveling in the original direction?

Please answer all, thank you so much!