I Review | Constar Express your answer to two significant figures and include the appropriate units. You've decided to protect your house by placing a 5.7-m-tall iron lightning rod next to the house. The top is sharpened to a point and the bottom is in good contact with the ground. From your research, you've learned that lightning bolts can carry up to 46 kA of current and last up to 50 us HA Q = 2.5 Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B You don't want the potential difference between the top and bottom of the lightning rod to excéed 130 V. What minimum diameter must the rod have two significant figures and include the appropriate units.

I Review | Constar Express your answer to two significant figures and include the appropriate units. You've decided to protect your house by placing a 5.7-m-tall iron lightning rod next to the house. The top is sharpened to a point and the bottom is in good contact with the ground. From your research, you've learned that lightning bolts can carry up to 46 kA of current and last up to 50 us HA Q = 2.5 Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B You don't want the potential difference between the top and bottom of the lightning rod to excéed 130 V. What minimum diameter must the rod have two significant figures and include the appropriate units.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter18: Electric Charge And Electric Field

Section: Chapter Questions

Problem 53PE: A simple and common technique for accelerating electrons is shown in Figure 18.55, where there is a...

See similar textbooks

Similar questions

(a) At what speed will a proton move in a circular path of the same radius as the electron in Exercise 22.12? (b) What would the radius of the path be it the proton had the same speed as the electron? (c) What would the radius be if the proton had the same kinetic energy as the electron? (d) The same momentum?
(a) What is the final speed of an electron accelerated from rest through a voltage of 25.0 MV by a negatively charged Van de Graff terminal? (b) What is unreasonable about this result? (c) Which assumptions are responsible?
Describe one promising explanation for how thunderclouds become electrified, that is, acquire a charge separation that often leads to cloud-to-ground lightning strikes.
Given the polar character of water molecules, explain how ions in the air form nucleation centers for rain droplets.
Suppose Earth and the Moon each carried a net negative charge Q . Approximate both bodies as point masses and point charges. (a) What value of Q is required to balance the gravitational attraction between Earth and the Moon? (b) Does the distance between Earth and the Moon affect your answer? Explain. (c) How many electrons would be needed to produce this charge?
A clock battery wears out after moving 10,000 C of charge through the clock at a rate of 0.500 mA. (a) How long did the clock run? (b) How many electrons per second flowed?
A pluton moves in the electric field E=200iN/C . (a) What are the force on and the acceleration of the proton? (b) Do the same calculation foran electron moving in this field.
An electron has an initial velocity of 5.00106m/s in a uniform 2.0010m/s electric field. The field accelerates the election in the direction opposite to its initial velocity, (a) What is the direction of the electric field? (b) How far does the electron travel before coming to rest? (c) How long does it take the electron to come to rest? (d) What is the electron's velocity when it returns to its starting point?
A simple and common technique for accelerating electrons is shown in Figure 18.55, where there is a uniform electric field between two plates. Electrons are released, usually from a hot filament, near the negative plate, and there is a small hole in the positive plate that allows the electrons to continue moving. (a) Calculate the acceleration of the electorn if the field strength is 2.50104 N/C. (b) Explain why the electron will not be pulled back to the positive plate once it moves through the hole.
1. What is the voltage of a 6.5 cm solid metal sphere that has a -4.00 nC static charge away from the center of a 1 cm diameter? 2. A demonstration Van de Graaff generator has a 30.0-cm-diameter metal sphere that produces a voltage of 150 kV near its surface (look at the figure below). What excess charge resides on the sphere? (Assume that each numerical value here is shown with three significant figures.) ide of shy meal sphere Alunum sphe Conduci Covered puley Coveed puy Vos -Motor
The van de Graaff generator - our generator makes 400,000 volts. you can easily use it to create Sparks in the air there since it takes around 33,000 volts to make a spark that's 1 cm long. in general double the length takes double the voltage The data distance , number of spackes per 30 seconds 10cm , 2 9cm , 20 8cm , 30 7cm , 46 The question: determine a way to estimate the number of Sparks per second for several different distances between the two orbs and make a graph depicting this relationship
Two electrons in a vacuum exert force of F = 4.63E-08 N on each other. They are then moved so that they are separated by x = 6.4 times their original distance. a. What is the force, in newtons, that the electrons experience at the new separation distance? b. How far apart, in meters, were the electrons originally?