Concept explainers
A singly ionized (one electron removed) 40K atom passes through a velocity selector consisting of uniform perpendicular electric and magnetic fields. The selector is adjusted to allow ions having a speed of 4.50 km/s to pass through undefiected when the magnetic field is 0.0250 T. The ions next enter a second uniform magnetic field (B') oriented at right angles to their velocity. 40K contains 19 protons and 21 neutrons and has a mass of 6.64 × 10−26 kg. (a) What is the magnitude of the electric field in the velocity selector? (b) What must be the magnitude of B' so that the ions will be bent into a semicircle of radius 12.5 cm?
Want to see the full answer?
Check out a sample textbook solutionChapter 27 Solutions
University Physics (14th Edition)
Additional Science Textbook Solutions
Cosmic Perspective Fundamentals
Laboratory Experiments in Microbiology (12th Edition) (What's New in Microbiology)
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
Campbell Biology in Focus (2nd Edition)
Biology: Life on Earth (11th Edition)
Campbell Essential Biology (7th Edition)
- The figure gives the acceleration a versus time t for a particle moving along an x axis. The a-axis scale is set by as = 12.0 m/s². At t = -2.0 s, the particle's velocity is 11.0 m/s. What is its velocity at t = 6.0 s? a (m/s²) as -2 0 2 t(s) 4arrow_forwardTwo solid cylindrical rods AB and BC are welded together at B and loaded as shown. Knowing that the average normal stress must not exceed 150 MPa in either rod, determine the smallest allowable values of the diameters d₁ and d2. Take P= 85 kN. P 125 kN B 125 kN C 0.9 m 1.2 m The smallest allowable value of the diameter d₁ is The smallest allowable value of the diameter d₂ is mm. mm.arrow_forwardWestros, from Game of Thrones, has an area of approximately 6.73⋅106 miles26.73⋅106miles2. Convert the area of Westros to km2 where 1.00 mile = 1.609 km.arrow_forward
- a) What is the lenght of x? b) Findθ c) Find ϕarrow_forwardA surveyor measures the distance across a straight river by the following method: Starting directly across from a tree on the opposite bank, he walks x = 97.7 m along the riverbank to establish a baseline. Then he sights across to the tree. The angle from his baseline to the tree is θ = 33.0 °. How wide is the river?arrow_forwardA small turtle moves at a speed of 697. furlong/fortnight. Find the speed of the turtle in centimeters per second. Note that 1.00 furlong = 220. yards, 1.00 yard = 3.00 feet, 1.00 foot = 12.0 inches, 1.00 inch = 2.54 cm, and 1.00 fortnight = 14.0 days.arrow_forward
- The landmass of Sokovia lifted in the air in Avengers: Age of Ultron had a volume of about 1.98 km3. What volume is that in m3?arrow_forwardA fathom is a unit of length, usually reserved for measuring the depth of water. A fathom is exactly 6.00 ft in length. Take the distance from Earth to the Moon to be 252,000 miles, and use the given approximation to find the distance in fathoms. 1 mile = 5280 ft. (Answer in sig fig.)arrow_forwardNo chatgpt pls will upvotearrow_forward
- One of the earliest video games to have a plot, Zork, measured distances in “Bloits” where 1 Bloit was defined as the distance the king’s favorite pet could run in one hour, 1,090 m. In the same game the king has a statue made that is 9.00 Bloits high. What is this in meters?arrow_forwardNo chatgpt pls will upvotearrow_forwardNo chatgpt pls will upvotearrow_forward
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPrinciples of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781285737027Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill