A particle with mass 4×10-2 kg and charge +3 µC enters a region of space where there is a magnetic field of 1T that is perpendicular to the velocity of the particle. When the particle encounters the magnetic fiel it experiences an acceleration of 12 m/s^2. What is the speed of the particle when it enters the magnetic-field region? Express your answer in meters per second.

A disc magnet is used to hold a piece of paper (0.1 mm thick) to the door of a refrigerator. The magnet is 4 cm in diameter and 0.5 cm thick. Its mass is 100 grams. Assuming that the coefficient of friction between the paper and the refrigerator is 0.3, what is the minimum remanent magnetism (in Gauss) that the magnet must have in order to keep the magnet and paper from falling ?

a charged particle enters a mass spectrometer with uniform magnetic field B= .60 T pointing into the page. if the particle has mass m= 3.2 x10^-12 kg and is travelling at a speed of 5.0 x 10^5 m/s, then it is seen to curve in the magnetic field as shown and strikes a detector d=12.0 cm away from the point where it entered the mass spectrometer. what is the charge on the particle? a) +44 microC b) -44 microC c) -68 microC d) +68 microC

A charged particle with a charge to mass ratio of 5.7E8 C/kg travels on a circular path that is perpendicular to a magnetic field whose magnitude is 0.84 T. How much time does it take for the particle to complete one revolution?

(d) Would the electron undergo the same acceleration? O Yes O No

In a mass spectrometer, a doubly charged ion having a particular velocity is selected by using a magnetic filed of 130 mT perpendicular to an electric field of 6.9 kV/m. The same magnetic field is used to deflect the ion in a circular path with a radius of 93 mm. What is the mass of the ion? The mass, m = Incorrect Units           Correct .

A laboratory electromagnet produces a magnetic field of magnitude 1.56 T. A proton moves through this field with a speed of 6.54 ✕ 106 m/s. (a) Find the magnitude of the maximum magnetic force that could be exerted on the proton. N(b) What is the magnitude of the maximum acceleration of the proton? m/s2(c) Would the field exert the same magnetic force on an electron moving through the field with the same speed? (Assume that the electron is moving in the same direction as the proton.) YesNo     Explain. This answer has not been graded yet. (d) Would the electron undergo the same acceleration? YesNo     Explain.

A positive charge traveling with a speed of 8,600 m/s enters the deflection chamber of a mass spectrometer. In the deflection chamber exists a uniform magnetic field of 0.8 T. The charge undergoes a deflection with a radius of curvature that is 0.033m. If the charger is 1.502 x 10^-19 C, what is its mass in atomic mass units? 1 Amu = 1.66 x 10^-27 kg

Write down an expression for the force experienced by an electron moving with a velocity, v, in a magnetic field B. By equating this expression to the force required to cause electrons to follow a circular path of radius, r, derive an expression for the ratio, (?⁄?) for an electron in terms of the magnetic field strength, the radius of the circular path and the accelerating potential, V.

A vector representing a magnetic field has an x-component of 0.400 T (tesla) and a y-component of 0.162 T.What is the direction (in degrees) of the magnetic field with respect to the positive x-axis?