The electric field near the surface of the earth points downward and has a magnitude of 150
Question:
The electric field near the surface of the earth points downward and has a magnitude of 150 N/C.
(a) Compare the upward electric force on an electron with the downward gravitational force.
(b) What charge should be placed on a penny of mass 3 g so that the electric force balances the weight of the penny near the earth's surface?
Step by Step Answer:
a Ee mg 150 16 10 19 91 1...View the full answer
Fundamentals of Ethics for Scientists and Engineers
ISBN: 978-0195134889
1st Edition
Authors: Edmund G. Seebauer, Robert L. Barry
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
Students also viewed these Electricity and Magnetism questions
-
The electric field near the surface of the Earth has a magnitude of approximately 150 V/m and points downward. Determine the following quantities for the Earth. The radius od the earth is 6,371km....
-
The temperature near the surface of the earth is 291 K. A xenon atom (atomic mass 5 131.29 u) has a kinetic energy equal to the average translational kinetic energy and is moving straight up. If the...
-
The earth has a downward-directed electric field near its surface of about 150 N/C. If a raindrop with a diameter of 0.020 mm is suspended, motionless, in this field, how many excess electrons must...
-
Describe the graphs of the equation. x 2 + y 2 3
-
During 2016, Jill, age 39, participated in a Section 401(k) plan which provides for maximum employee contributions of 12 percent. Jill's salary was $90,000 for the year. Jill elects to make the...
-
In a science fiction novel two enemies, Bonzo and Ender are fighting in outer space. From stationary positions they push against each other. Bonzo flies off with a velocity of + 1.5 m/s, while Ender...
-
How would you advise Microcom in developing a strategy to implement relationship marketing and selling?
-
The Bawl Corporation supplies alloy ball bearings to auto manufacturers In Detroit. Because of its specialized manufacturing process, considerable work-in -process and raw materials are needed. The...
-
What is a source that supports one firm raising prices, the other firms will likely follow suit to stay competitive. However, if one firm lowers prices, the other firms will also lower their prices...
-
Tattletale News Corp. has been growing at a rate of 20% per year, and you expect this growth rate in earnings and dividends to continue for another 3 years. a. If the last dividend paid was $2, what...
-
An oil drop has a mass of 4 10 14 kg and a net charge of 4.8 10 19 C. An upward electric force just balances the downward force of gravity so that the oil drop is stationary. What is the direction...
-
Two equal positive charges of magnitude q1 = q2 = 6.0 nC are on the y axis at y1 = +3 cm and y2 = 3 cm. (a) What is the magnitude and direction of the electric field on the x axis at x = 4 cm? (b)...
-
Jummy Fruits is considering a change in its general purchase terms that would stipulate euros as the standard currency for all purchase contracts. The business rela-tionship with Pacific Dream is...
-
The functions of a modern central bank are to: a. Adjust interest rates and other tools to control the quantity of money and credit in the economy. b. Operate a payments system. c. Lend to sound...
-
Using TweetDeck or another similar platform, set up a news feed based on searches. Use a minimum of ten hashtags for your searches. Experiment with your search-based news feed for at least one week....
-
Using a social reading platform (such as LinkedIn, Flipboard, or Feedly), set up a feed of articles and posts that match your professional interests. At a minimum, take the following actions: A....
-
A. Explain the features that distinguish reports from other types of business correspondence. B. Describe ways in which you can enhance your credibility by creating reports. C. Discuss the advantages...
-
Identify five online business databases available through your library. For each, explain what the key advantages are and provide one limitation. When you have written about each database, write a...
-
A drummer engaged to play for a pop group was contractually bound to work seven nights a week. After falling ill, Jacks doctor advised he work only four nights a week. It became necessary for the pop...
-
KD Insurance Company specializes in term life insurance contracts. Cash collection experience shows that 20 percent of billed premiums are collected in the month before they are due, 60 percent are...
-
Gasoline can be thought of as having the formula C 8 H 18 . When gasoline is used in a cars engine, it reacts with oxygen (O 2 ). If you look closely at the exhaust pipe of a running car, you will...
-
Figure shows a portion of a silver ribbon with z1 = 11.8 mm and y1 = 0.23 mm, carrying a current of 120 A in the +x-direction. The ribbon lies in a uniform magnetic field, in the y-direction, with...
-
Let Fig. represent a strip of an unknown metal of the same dimensions as those of the silver ribbon in Exercise 27.51. When the magnetic field is 2.29 T and the current is 78.0 A, the Hall emf is...
-
When a particle of charge q > 0 moves with a velocity of U1 at 45.0o from the +x-axis in the xy-plane a uniform magnetic field exerts a force F, along the -z-axis (Fig). When the same particle moves...
-
A recent "study" examined the possibility of cooking a chicken by slapping it really hard. If your hand has enough kinetic energy, the slap could convert this into thermal energy to cook the bird....
-
Skydiving terminal velocity. When determining the terminalvelocity of items in free fall, the friction factor f is typicallycalled the drag coefficient and is represented by the symbol CD.They are...
-
A steel alloy has a melting temperature = 1450C, its density = 7.87 g/cm2, specific heat=0.46 /gC, and heat of fusion - 270 1/8 Assume specific heat has the same value for solid and molten metal. The...
Study smarter with the SolutionInn App