Question

In: Physics

Hummingbirds can pick up static charge as they fly either from the air or from interactions...

Hummingbirds can pick up static charge as they fly either from the air or from interactions with plants. A possible value is +250 pC.

a. Given this charge, did the bird gain positive charge or lose negative charge? Explain.

b. If we model the hummingbird as a sphere with the above net charge attained from the air with a radius of 2.9 cm, what is the electric potential or “voltage” at the bird and 5 cm away from the bird?

c. If we model the bird (charged through interactions with plants) as one side of a capacitor with the earth as the other side with the opposite charge, and the capacitance is 1.3 pF, what is the potential difference between the bird and the earth? (parts b and c are independent questions.)

Solutions

Expert Solution

The answers are in the images.


Related Solutions

Pressure for air and fluids can be measured and used to fly, float, blow, suck or...
Pressure for air and fluids can be measured and used to fly, float, blow, suck or coast according to specific laws and principles. Terminology can change for the same actions if used with water or with air. 1) These terms are used in the chapter. Give an example of an item that illustrates your definition. Is there a formula or measurement unit that is commonly used? give an Example & Formula of each term Newton's 1st law of Motion Newton's...
In related to nursing, pick up any relevant clinical disorder (either genetic or non-genetic) These are...
In related to nursing, pick up any relevant clinical disorder (either genetic or non-genetic) These are following minimum expectations: a. Introduction b. clinical description c. Genes or chromosomes involved (if it is genetic disorder) d. Prevalence, socio economic relevance (if it is non genetic) e. Screening methods, diagostics and treatment aspects f. Your perspective as a health care major student g.Future directions and conclusions
Pam is in charge of putting on the NYE fireworks show. The show can either be...
Pam is in charge of putting on the NYE fireworks show. The show can either be anywhere from 10 - 20 minutes long. There are 4 neighborhoods in your city that each offer different views of the firework show, and thus each have a different marginal benefit from additional minutes of the show as shown in the table below: Show Length in Minutes Marginal Benefit of Neighborhood A Marginal Benefit of Neighborhood B Marginal Benefit of Neighborhood C Marginal Benefit...
You are in charge of the national Unicorn breeding program. Unicorns can have either swirled or...
You are in charge of the national Unicorn breeding program. Unicorns can have either swirled or solid horns with the swirled (Sw) phenotype being dominant over solid (sw). Their fur can be gold (F+), bronze (fb), silver (fs) or white (fw), with the colour alleles following a dominance series of: F+ > fb > fs > fw question 1 a) Which pair could you mate to potentially get some offspring with silver fur and swirled horns? Select one: a. A...
Assessment from the movie "Up in the Air" – evaluate the effectiveness of the implementation and...
Assessment from the movie "Up in the Air" – evaluate the effectiveness of the implementation and execution of the HR practices. Give your opinion and provide justification.
Each of the faces of a regular tetrahedron can be painted either black or white. Up...
Each of the faces of a regular tetrahedron can be painted either black or white. Up to rotation, how many ways can the tetrahedron be painted? Please provide all the necessary computations and explanations. (hint : idea of abstract algebra can be used)
Can moral rules of cooperation emerge spontaneously from the interactions of rational egoists?
Can moral rules of cooperation emerge spontaneously from the interactions of rational egoists?
Problem 1Bill can produce either tables orchairs. Bill can work up to 10 hours...
Problem 1Bill can produce either tables or chairs. Bill can work up to 10 hours a day. His production possibilities are given in the table below:TablesChairs01001080206030404020500Construct the production possibilities frontier (PPF) for Bill. Put tables on the Horizontal axis and chairs on the vertical axis.What is Bill’s opportunity cost of producing one additional table?What is Bill’s opportunity cost of producing one additional chair?Currently Bill is producing 20 tables and 40 chairs.Is this allocation of resources efficient? Why?Show this allocation on...
Mcdonalds waiting time from order to pick up has gotten a lot of attention in the...
Mcdonalds waiting time from order to pick up has gotten a lot of attention in the media recently. Following is the distribution of waiting time from order to pcik up. MEDIAN=175 MEAN=180 according to qsr magazine customers are waiting longer than expected. Group 1 studied on 50 branches. Avg waiting time = 187 seconds. standard deviation =10 Group 2 studied on 25 branches. Avg waiting time = 192 seconds. standard deviation =15 1) write the null and alternative hypothesis 2)...
the stock under consideration is currently trading at K25 it can either go up or down...
the stock under consideration is currently trading at K25 it can either go up or down by 15 percent in any given period. The risk-free rate is 10 percent. Using a two-period binomial model, A. Determine the six possible stock prices for the next period. B. Determine the intrinsic values at expiration of a European call with an exercise price of 25. C. Find the value of the option today.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT