Plane perpendicular to a uniform magnetic field
An electron with kinetic energy 1.64 keV circles in a plane perpendicular to a uniform magnetic field. The orbit radius is 23.0 cm. Find the speed of the electron, the magnetic field, the frequency of circling, and the period of motion.
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Find the average horizontal force exerted by the ground on the feet of a sprinter of mass 50.0 kg who accelerates from rest to a speed of 10.0 m/s in a time interval of 1.00 s.
In 2010, 433,428 adult Texans were diagnosed with diabetes for the first time. What is the incidence of diabetes in Texas? Express your answer in units of per 1000 persons per year.
A 10-year annuity pays $1,250 per month, and payments are made at the end of each month. If the interest rate is 12 percent compounded monthly for the first five years, and 8 percent compounded monthly thereafter, what is the present value of the
The coeficient of kinetic friction between the crate and the incline is 0.25. If the crate moves up 6m in 4 sec then what is the force on the rope?
You have 36 years left until retirement and want to retire with $4.9 million. Your salary is paid annually, and you will receive $78,000 at the end of the current year. Your salary will increase at 4.6 percent per year, and you can earn a 12.6 per
Use this information to answer the next two questions. A researcher at a major hospital wishes to estimate the proportion of the adult population of the United States that has high blood pressure.
Specify the electric field strength E1,E2, and E3 in Newtons/Coulomb
The firm has hired an underwriter who arranges a full commitment underwriting and suggests an initial selling price of $25 a share with a 7 percent spread.
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