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 1.85 x 107 m/s in the horizontal direction when magnetic forces deflect the electron with a vertically upward acceleration of 5.35 x 1015 m/s². The phosphorescent screen is a horizontal distance of 5.6 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? cm

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 1.85 x 107 m/s in the horizontal direction when magnetic forces deflect the electron with a vertically upward acceleration of 5.35 x 1015 m/s². The phosphorescent screen is a horizontal distance of 5.6 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? cm

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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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 1.90 x 107 m/s in the horizontal direction when magnetic forces deflect the electron with a vertically upward acceleration of 5.50 x 1015 m/s2. The phosphorescent screen is a horizontal distance of 7.2 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? (b) How far does the electron travel vertically before it hits the screen? cm
An electron, with an initial horizontal velocity of magnitude 2.44 × 109 cm/s, travels into the region between two horizontal metal plates that are electrically charged. In that region, it travels a horizontal distance of 2.18 cm and has a constant downward acceleration of magnitude 3.13 × 1017 cm/s2 due to the charged plates. Find (a) the time required by the electron to travel the 2.18 cm and (b) the vertical distance it travels during that time. Also find the magnitudes of the (c) horizontal and (d) vertical velocity components of the electron as it emerges.
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 1.90 x 107 m/s in the horizontal direction when magnetic forces deflect the electron with a vertically upward acceleration of 5.50 x 1015 m/s2. The phosphorescent screen is a horizontal distance of 7.2 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? (b) How far does the electron travel vertically before it hits the screen? cm
A human expedition lands on an alien moon. One of the explorers is able to jump a maximum distance of 14.0 m with an initial speed of 2.80 m/s. Find the gravitational acceleration on the surface of the alien moon. Assume the planet has a negligible atmosphere. (Enter the magnitude in m/s2.)
In a video game, a science-fictional “angry bird” is launched straight upwards by a high-velocity cannon from the surface of a planet far from Earth. The bird’s initial vertical velocity is 249 m/s (up). Ifgravity around this planet is a constant 11.2 m/s2, and the video game does kinematics correctly,how much time does it take the bird to reach the top if its trajectory?
An electron, with an initial horizontal velocity of magnitude 4.57 × 109 cm/s, travels into the region between two horizontal metal plates that are electrically charged. In that region, it travels a horizontal distance of 2.25 cm and has a constant downward acceleration of magnitude 2.35 × 1017 cm/s2 due to the charged plates. Find (a) the time required by the electron to travel the 2.25 cm and (b) the vertical distance it travels during that time. Also find the magnitudes of the (c) horizontal and (d) vertical velocity components of the electron as it emerges.
Elon Musk’s SpaceX is proposing that commercial flights will be ready to go to the Moon in less than three years. Yusaku Maezawa, a Japanese billionaire, is seeking eight artists to join his trip to the Moon. He wants them to inspire everyone by creating artwork after they return to Earth. The acceleration due to gravity on the surface of the Moon is 16.6% of the acceleration due to gravity on Earth. To keep the artists comfortable, it is decided that as they lift off from the Moon, the acceleration they experience close to the surface of the Moon should be kept to the equivalent of 2.83 g (1?is the acceleration due to gravity on the surface of the Earth). What is the maximum thrust that one of the new rockets from Part 2 can withstand under this condition? Note: The weight of the artists is negligible compared to the weight of the rocket (given in part 2), so you can ignore it in your calculations!
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 1.90 x 107 m/s in the horizontal direction when magnetic forces deflect the electron with a vertically upward acceleration of 4.90 x 1015 m/s2. The phosphorescent screen is a horizontal distance of 5.4 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? cm
A pilot flew his single-engine airplane 60 miles with the wind from City A to above City B. He then turned around and flew back to City A against the wind. If the wind was a constant 20 miles per hour, and the total time going and returning was 1.3 hours, find the speed of the plane in still air.
The take off speed of a military aircraft from an aircraft carrier is approximately 170 mi/hr relative to the air. They acquire this speed through a combination of a catapult system present on the aircraft carrier and the aircraft's jet propulsion system. A common strategy is to head the carrier and the plane into the wind. If a plane is taking off from an aircraft carrier which is moving at 40 mi/hr into a 20 mi/hr headwind, then what speed relative to the deck of the aircraft carrier must it obtain to takeoff? Draw your vectors.
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