Physics Answers

In a cyclotron, the diameter of the pole faces is 100 cm and the magnetic field between the pole faces is 0.50 T. The cyclotron is used for accelerating protons. Calculate the kinetic energy of proton in eV and speed of the proton as it emerges from the cyclotron. Also determine the cyclotron frequency. 

A fuse is made of material that melts when the current density reaches 400 A cm2 . What is the diameter of the fuse wire needed to limit the current to 0.40 A? 

A flat, circular metal disk of uniform thickness has a radius of 3.20 cm. A hole is drilled in the disk that is 1.60 cm in radius. The hole is tangent to one side of the disk. Where r = 3.20.Where is the x-component of the CM of the disk now that the hole has been drilled? 

A missile is launched on the earth with the initial velocity of 100ms-1 at an elevation of 30 degree s.calculate

1 greatest height attained

2 horizontal range

3 time of fright

4 velocity of a missile at time 8 second

A missile is launched on earth with the initial velocity of 100ms-1 at an elevation of 30 degrees.calculate

1 greatest height attained

2 horizontal range

3 time of fright

4 velocity of a missile at time 8 second

A light hits a surface at an angle of 16°. The material on the other side of the surface has an index of refraction of 1.44 and the light is making an angle of 15° with the surface when it exits on this side. What is the index of refraction on the incident side of the interface?

Light travels through a medium with an index of refraction of 1.04. It comes to the surface of another medium at an angle of 83°. If the index of refraction for this medium is 2.11, what angle does the refracted light make with respect to the surface?

A light ray incident on a plane mirror is at an angle 65° relative to the mirror surface. At what angle is the reflected ray relative to the surface?

A beam of light incident on a plane mirror is at an angle of 32° relative to the normal. What is the angle between the refelected rays and the surface of the mirror?

Determine if the formula T=2π√(m/f/x ) is dimensionally correct