Physics, 27.03.2020 20:51, bsweeney3328

Older televisions display a picture using a device called a cathode ray tube, where electrons are emitted at high speed and collide with a phosphorescent surface, causing light to be emitted. The paths of the electrons are altered by magnetic fields. Consider one such electron that is emitted with an initial velocity of 2.10 107 m/s in the horizontal direction when magnetic forces deflect the electron with a vertically upward acceleration of 5.10 1015 m/s2. The phosphorescent screen is a horizontal distance of 5.5 cm away from the point where the electron is emitted.

(a) How much time does the electron take to travel from the emission point to the screen? s

(b) How far does the electron travel vertically before it hits the screen?

Answers: 3

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 02:00, ummsumaiyah4185

Write the correct abbreviation for each metric unit

Answers: 1

continue

Physics, 22.06.2019 09:00, edgarsandoval60

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 2 options: the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the cold balloon expands and rises. the warm balloon shrinks and sinks. the warm balloon expands and rises. the cold balloon shrinks and sinks.

Answers: 3

continue

Physics, 22.06.2019 16:00, Andrebutrus

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?

Answers: 3

continue

Physics, 22.06.2019 17:20, Tiredd7838

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b. b. at twice the distance, the magnitude of the field is 2b. c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.

Answers: 3

continue

Do you know the correct answer?

Older televisions display a picture using a device called a cathode ray tube, where electrons are em...