An evacuated tube uses a voltage of 9.00 kV to accelerate electrons from rest to hit a phosphor screen. What is the speed v (in units of 107 m/s) of an electron when it hits the screen? Enter a number with one digit behind the decimal point. An electron moves through a potential difference of 5 V. A second particle with twice the charge moves between the same two points. What change in electric potential does the second particle experience? 20 V O 2.5 V O 5V O 10 V
An evacuated tube uses a voltage of 9.00 kV to accelerate electrons from rest to hit a phosphor screen. What is the speed v (in units of 107 m/s) of an electron when it hits the screen? Enter a number with one digit behind the decimal point. An electron moves through a potential difference of 5 V. A second particle with twice the charge moves between the same two points. What change in electric potential does the second particle experience? 20 V O 2.5 V O 5V O 10 V
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Transcribed Image Text:An evacuated tube uses a voltage of 9.00 kV to accelerate electrons from rest to hit a phosphor
screen.
What is the speed v (in units of 107 m/s) of an electron when it hits the screen?
Enter a number with one digit behind the decimal point.
An electron moves through a potential difference of 5 V. A second particle with twice the charge
moves between the same two points. What change in electric potential does the second particle
experience?
O 20 V
2.5 V
5V
10 V
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