A singly ionized (one electron removed) 40 K 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. 40 K 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?
A singly ionized (one electron removed) 40 K 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. 40 K 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?
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?
A car driving at 27m/s veers to the left to avoid a deer in the road. The maneuver takes 2.0s and the direction of travel is altered by 20 degrees. What is the average acceleration during the constant speed maneuver? Do this in accordance with the example in the chapter.
No No No
Chatgpt pls will upvote
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C01: Physical Quantities, Units and Measurementscobris alinu zotinUD TRO
Bendemeer Secondary School
Secondary Three Express Physics
Chpt 1: Physical Quantities, Unit and Measurements Assignment
Name: Chen ShiMan
loov neowled soria
25
( 03 ) Class: 3 Respect 6 Date: 2025.01.22
1
Which group consists only of scalar quantities?
ABCD
A
acceleration, moment and energy store
distance, temperature and time
length, velocity and current
mass, force and speed
B
D.
B
Which diagram represents the resultant vector of P and Q? lehtele
시
bas siqpeq olarist of beau eldeo qirie-of-qi
P
A
C
-B
qadmis
rle mengaib priwollot erT S
Quilons of qira ono mont aboog
eed indicator
yh from West
eril to Inioqbim srij
enisinoo MA
(6)
08 bas 8A aldao ni nolent or animaleb.gniweb slepe eld
260 km/h
D
1
D.
e
51
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