Ph 221 Midterm Exam Asnwers 100% Correct

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PH 221 Midterm Exam Asnwers 100% Correct 1.A beam of light traveling in air is incident on a transparent plastic at an angle of incidence of 50o.
The angle of refraction is 35o. What is the index of refraction of the plastic?
1. A) 1.56
2. B) 1.34
3. C) 1.67
4. D) 1.43
2.
A long, straight wire carries a current of 2.5 A. Find the magnitude of the magnetic field 25 cm from the wire.

3.
If a current is flowing with a value of 5.9 A, how much electron charge passes any single point in 25 seconds?
2. A) 2.3 x 1020 e
3. B) 1.9 x 1020 e
4. C) 9.2 x 1020 e
5. D) 1.5 x 1020 e 4.
See the figure. The net force on the 1 nC charge is zero. What is q?
1. A) zero
2. B) 0.68 nC
3. C) 4.0 nC
4. D) 1.5 nC 5.
Estimate the average power output of the Sun, given that about 1350 W/m2 reaches the upper atmosphere of the Earth. The distance from the Sun to the Earth is 1.5 × 1011 m.
1. A) 4 × 1026 W
2. B) 3 × 1026 W
3. C) 2 × 1026 W
4. D) 1 × 1026 W

6.
Which of the equations here is valid for the circuit shown?
1. A) 2 – 2I1 – 2I2 – 4I3 = 0
2. B) 6 – I1 – 2I2 = 0
3. C) -2 – I1 + 4 – 2I2 = 0
4. D) 4 – I1 + 4I3 = 0 7.
Starting from rest, a proton falls through a potential difference of 2700 V. What speed does it acquire?
3. A) 3.6 × 105 m/s
4. B) 2.4 × 105 m/s
5. C) 7.2 × 105 m/s
6. D) 4.8 × 105 m/s 8.
If the force between two charges increases by a factor of 16 because the charges are moved closer together, how much closer are they moved?
1. A) 4
2. B) 2
3. C) 8
4. D) 16 9.
A concave mirror with a radius of 30 cm creates a real image 40 cm…...

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Ph 221 Midterm Exam Asnwers 100% Correct

...PH 221 Midterm Exam Asnwers 100% Correct To Buy this Class Copy & paste below link in your Brower http://homeworklance.com/downloads/ph-221-midterm-exam-asnwers-100-correct/ Or Visit Our Website Visit : http://homeworklance.com Email Us : lancehomework@gmail.com PH 221 Midterm Exam Asnwers 100% Correct 1.A beam of light traveling in air is incident on a transparent plastic at an angle of incidence of 50o. The angle of refraction is 35o. What is the index of refraction of the plastic? 1. A) 1.56 2. B) 1.34 3. C) 1.67 4. D) 1.43 2. A long, straight wire carries a current of 2.5 A. Find the magnitude of the magnetic field 25 cm from the wire. 3. If a current is flowing with a value of 5.9 A, how much electron charge passes any single point in 25 seconds? 2. A) 2.3 x 1020 e 3. B) 1.9 x 1020 e 4. C) 9.2 x 1020 e 5. D) 1.5 x 1020 e 4. See the figure. The net force on the 1 nC charge is zero. What is q? 1. A) zero 2. B) 0.68 nC 3. C) 4.0 nC 4. D) 1.5 nC 5. Estimate the average power output of the Sun, given that about 1350 W/m2 reaches the upper atmosphere of the Earth. The distance from the Sun to the Earth is 1.5 × 1011 m. 1. A) 4 × 1026 W 2. B) 3 × 1026 W 3. C) 2 × 1026 W 4. D) 1 × 1026 W 6. Which of the equations here is valid for the circuit shown? 1. A) 2 – 2I1 – 2I2 – 4I3 = 0 2. B) 6 – I1 – 2I2 = 0 3. C) -2 – I1 + 4 – 2I2 = 0 4. D) 4 – I1 + 4I3 = 0 7. Starting from rest, a proton falls through a......

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