Part A The electric field 1.0 cm from a small object points away from the object with a strength of 2.1x105 N/C. What is the object's charge? Express your answer with the appropriate units.

A proton is placed in a uniform electric field of 2650 N/C. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Electron in a uniform field. Part B Calculate the proton's acceleration. Express your answer in meters per second squared. a = 2.5x10¹1 m/s² Submit Correct F a = Part C V = Previous Answers m 4.24×10-16 N 1.67×10-27 kg Calculate the proton's speed after 1.40 us in the field, assuming it starts from rest. Express your answer in meters per second. Π ΑΣΦ 4167.55 105 2.54 × 10¹¹ m/s² ● Submit Previous Answers Request Answer ? m/s

Part A An electron moving parallel to a uniform electric field increases its speed from 2.0x10' m/s to 4.0×10 m/s over a distance of 1.2 cm. What is the electric field strength? Express your answer with the appropriate units. HA E = Value Units Submit Request Answer

PART B

I do not know how to solve the attached phyiscs question.

Part A Calculate the magnitude of the electric field at one corner of a square 2.42 m on a side if the other three corners are occupied by 6.75x10 C charges. Express your answer to three significant figures and include the appropriate units. ? E = Value Units Submit Request Answer

▼ Part A The electric field strength 29 cm from the center of a uniformly charged, hollow metal sphere is 11,000 N/C. The sphere is 8.4 cm in diameter, and all the charge is on the surface. What is the magnitude of the surface charge density in nC/cm2 ? Express your answer in nanocoulombs per square centimeter. Hνα ΑΣφ nC/cm2 Submit Request Answer Provide Feedback

The electric field 0.340 m from a very long uniform line of charge is 760 N/C. Part A How much charge is contained in a section of the line of length 2.80 cm ? lgl = C Submit Request Answer Provide Feedback

A E The picture shows the field lines of a nonuniform electric field and five points A to E in the field. Consider the following statements. Which one is true? This electric field may be due to a negatively charged object located to the left. A positive point charge placed at point C will feel a stronger electric force than at point D. OThe electric field strengths at points B and C are the same because they are on the same field line. OThe electric field strengths at points A and D are both zero because there are no electric field lines on them. A negative point charge placed at point C will feel an electric force pointing to the right.

An infinitely long line of charge has a linear charge density of 4.50x10-12 C/m. A proton is at distance 18.5 cm from the line and is moving directly toward the line with speed 1100 m/s. Part A How close does the proton get to the line of charge? Express your answer in meters. ► View Available Hint(s) VE ΑΣΦ ? m