# Helen

Most popular questions and responses by Helen
1. ## physics

A droplet of ink in an industrial ink-jet printer carries a charge of 1.1×10−10 C and is deflected onto paper by a force of 3.7×10−4 N.Find the strength of the electric field to produce this force.

2. ## finance

Suppose an investment offers to triple your money in 36 months (don’t believe it). What rate of return per quarter are you being offered

3. ## algebra

During a manufacturing process, a metal part in a machine is exposed to varying temperature conditions. The manufacturer of the machine recommends that the temperature of the machine part remain below 141°F. The temperature T in degrees Fahrenheit x

4. ## English

9. Read these line, from The Passionate Shepherd to his love. "The country swains shall dance and sing/For they delight each May morning.?If these delights thy mind may move,/Then live with me, and be my love." What sort of life is the shepherd offering

5. ## Chemistry

An airplane is pressurized to 650mm Hg, which is the atmospheric pressure at a ski resort at 13,000ft altitude. a. if air is 21% oxygen, what is the partial pressure of oxygen on the plane? b. If the partial pressure of oxygen drops below 100mm Hg,

6. ## Grammar

Label each sentence below as simple, compound, complex, or compound-complex. 1. You can enter the data, or you can interview the candidates. (compound) 2. No one knew the man, and no one asked his name. (compound) 3. After the officer pulled Tim over, Tim

7. ## English

Words to choose from: Commemorate, complacent, consensus, deplete, diligent, empathy, menial, niche, transcend, and waive At Eastman High School reunions, the conversation usually gets around to the question “who was our best teacher?” And year after

8. ## Language Arts

1.)Knowing that the Latin root -equi- means "equal," choose the best meaning for the word equilateral as it is used in the sentence below. The box appears to be square, but I would have to measure its sides to prove that it is equilateral. A. equally

If this be error and upon me proved/ I nevered writ, nor no man ever loved." What is the impact of these concluding lines from shakespeare's sonnet 116? 1. They underscore the fact that everyone makes mistakes 2. They underscore the fat that shakespeare is

If this be error and upon me proved/ I nevered writ, nor no man ever loved." What is the impact of these concluding lines from shakespeare's sonnet 116? 1. They underscore the fact that everyone makes mistakes 2. They underscore the fat that shakespeare is

11. ## Chemistry

For the list of chemicals below, write complete, balanced equations for all possible reactions that would lead to an insoluble salt. KCl, BaCl2, AgNO3, Pb(No3)2, K2SO4, HNO3

12. ## chemistry

Freezing and Melting are two different physical changes that involve the same amount of energy. compare and contrast the potential energy diagrams that would represent each of these processes. Be specific in your comparison.

13. ## Geometry

A grid shows the positions of a subway stop and your house. The subway stop is located at (-5,2) and your house is located at (-9,9). What is the distance, to the nearest tenth unit between your house and the stop?

14. ## algebra

An initial population of 298 quail increases at an annual rate of 8%. Write an exponential function to model the quail population. What will the approximate population be after 3 years f(x)=298(1.08)^x;375 f(x)=298(0.08)^x;153 f(x)=298(8)^x;305

15. ## physics

Suppose the amount of heat removed when 3.0kg of water freezes at 0 degree C were removed from ethyl alcohol and its freezing/melting point of -114 degree C. How many kilograms of ethyl alcohol would freeze? PLEASE GIVE ME SOME HINTS!!!THANKS A LOT!!!!

16. ## statistic

For each of the following, assume you are working with a standard deck of 52 cards. There are 13 cards (2,3,4,5,6,7,8,9,10, jack, queen, king and Ace) in each of four suits (Clubs, Diamonds, Hearts, and Spades). a. What is P(Club) when drawing one card? b.

17. ## Geometry

Find the length of d in simplest radical form of he diagonal of a cube with sides of s units.

18. ## English

9. Read these line, from The Passionate Shepherd to his love. "The country swains shall dance and sing/For they delight each May morning.?If these delights thy mind may move,/Then live with me, and be my love." What sort of life is the shepherd offering

19. ## Physics

A 71 kg skydiver jumps out of a plane at an altitude of 1370m. She reaches terminal velocity of 68m/s. She opens the parachute at an altitude of 328m, and lands with a speed of 2.8m/s. a)How much (negative) work is done by air resistance before she opens

26. ## math

You want to determine the height of your school. The building casts a 6 foot shadow at the same time you cast a 15 inch shadow. If you are 5 feet tall how tall is the building?

27. ## Physics

A bowling ball of mass M and radius R is thrown along a level surface so that initially ( t= 0) it slides with a linear speed but does not rotate, see the figure. As it slides, it begins to spin, and eventually rolls without slipping. How far has the ball

Some people believe in the force (yes, like in Star Wars). To test if young Anakin Skywalker has the force with him, he is told that some cards that Yoda can see but Anakin cannot contain a picture of a planet, a lightsaber, a laser rifle, or a spaceship.

29. ## Math

Kimberly is 3 times as old as her sister, Halley .Find the ratio of Kimberley"s age to Hallet"s age. Give your answer in fraction form.

30. ## *****Help Statistic

Imagine taking a 10-question true or false exam. You randomly guess at each question. Don't do any calculations, just tell me your first impressions a). Is this a binomial setting? b) How many question do you think you would get correct? c). How surprised

31. ## Chemistry

What volume of a 0.5 M solution is required to prepare 250 mL of a 0.15M solution? (Note: M = mole per Litre)

32. ## Chemistry

If 6.0 liters of methane react with 12.0 liters of oxygen according to the equation CH4 + 2O2 → CO2 + 2H2O, and the temperature and the pressure are kept constant, which of the following is true? a. All the methane and oxygen react. b. Oxygen is in

33. ## physic

A cheetah is crouched in ambush 20m to the east of an observers blind. At time t=0 the cheetah charges an aeroplane in a cleaning 50m east of the observer. The cheetah runs along the straight line.

97. ## Algebra

Find the domain of the function expressed by the formula: y= 2 3 +x

98. ## chemistry

write the equilibrum constant expression for Kp of the following: a.) O2-->--------< 2PbO(s) + 2SO2(g)

99. ## communication

Which of the following is a characteristic of communication in high-context cultures? Written agreements are binding. There is reliance on nonverbal signs to communicate. Oral agreements are not binding. There is a preference for direct communication.