Oppositely charged parallel plates are separated by 4.50 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates? 1.335 ✓N/C (b) What is the magnitude of the force on an electron between the plates? 2.1286e-14 ✔N (c) How much work must be done on the electron to move it to the negative plate if it is initially positioned 2.94 mm from the positive plate? 3.4909e-17 x J

A runner travels I.5 laps around a circular track in a time of 50 s. The diameter of the track is 40 m and its circumference is 126 m. Find (a) the average speed of the runner and (b) the magnitude of the runner's average velocity. Be careful here; average speed depends on the total distance traveled, whereas average velocity depends on the displacement at the end of the particular journey.

A point charge of 1.0 x 10-9 C is located at the origin. How much work is required to bring a positive charge of 5.0 x 10-9 C from infinity to the location x = 30.0 cm? J

Cathode ray tubes (CRTS) used in old-style televisions have been replaced by modern LCD and LED screens. Part of the CRT included a set of accelerating plates separated by a distance of about 1.38 cm. If the potential difference across the plates was 24.0 kV, find the magnitude of the electric field (in V/m) in the region between the plates. HINT V/m

Two electric charges q1=2.0μCq1=2.0μC and q2=4.0μCq2=4.0μC are located 0.50m apart. How much work is needed to move the two charges apart and double the distance between them? Select one: a. 0.14 J b. 0.0 J c. −7.2×10−2J−7.2×10−2J d. 7.2×10−2J7.2×10−2J e. -0.14 J