1. physics

The sensitivity of a galvanometer of resistance 990ohm is increased by 10 times.The shunt used is??

2. Chemistry HELP

What is the velocity of an electron that has a de broglie wavelength approximately the length of a chemical bond? Assume this length to be 1.2 X10^-10 m.

3. math

After being exposed to an electromagnetic shrinking machine, Joe shrank a total of 120 centimeters over 1.2 seconds. His height decreased by the same amount each second. Joe wants to figure out how much his height changed each second.What equation can help

4. Math

prove: tan10+tan70+tan100=tan10.tan70.tan100

5. Chemistry

Calculate the frequency of an electron traveling at 1.85X10^7 m/s.

6. Physics

A novice golfer on the green takes three strokes to sink the ball. The successive displacements of the ball are d1 = 3.90 m to the north, d2 = 2.06 m northeast, and d3 = 1.14 m at 30.0° west of south (see the figure below). Starting at the same initial

7. math

Marcus bought r movie posters for \$5 each. Write an algebraic expression for total amount Marcus spent.

8. math

A cab charges \$1.50 for the first mile and \$0.50 for each additional mile. Write and solve an inequality to determine how many miles Sharon can travel if she has \$25 to spend. (2 points) \$0.50 + \$1.50x ¡Ü \$25; x ¡Ü 16 miles \$0.50 + \$1.50x ¡Ý \$25; x

9. math

Grandma Millie is shrinking! Her height decreases by 1/4 cm each year. She wants to predict the total change in her height over the next 3 years.Whats an equation that can solve this problem.

10. math

08.03)Esther wants to know if the number of words on a page in her language arts book is generally more than the number of words on a page in her social studies book. She takes a random sample of 25 pages in each book and then calculates the mean, median,

11. Probability

A white die and a black die is thrown. What is the probability that the number on the white die exceeds the number on the black die?

12. Physics

Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 1.65 μC charge. (Let A = 1.65 μC, B = 6.60 μC, and C = −4.20 μC.)

13. Physics

A hiker starts at his camp and moves the following distances while exploring his surroundings: 65.0 m north, 2.00 ✕ 102 m east, 1.10 ✕ 102 m at an angle 30.0° north of east, and 1.50 ✕ 102 m south. (a) Find his resultant displacement from camp.

14. fundamentals of math

there are 40 bikes inspected. If 15 need new tires and 26 need gear repairs. -what is the greatest number of bikes that could have needed both repairs? -The least number that could have needed both? -Greatest number that could have needed neither repair?

15. english

Why do some people keep diaries and journals? Diaries are considered important by literary individuals. Diaries help people find strong, incriminating evidence. Diaries allow writers to tell stories about what they have done. Diaries keep track of useful

16. Physics

A force of 480 N is applied to a stationary wooden box in one direction and an 920 N horizontal force is applied in the opposite direction. What additional force is necessary for the box to remain stationary?

17. Physics

An unmarked police car traveling a constant 85.0 km/h is passed by a speeder traveling 130 km/h . Precisely 3.00 s after the speeder passes, the police officer steps on the accelerator; if the police car's acceleration is 2.30 m/s2 , how much time passes

18. Algebra

Does an inequality of the form ax > b always, sometimes, or never give a solution of the form x > c? Give examples to support your answer.

19. math complex number

Solve (-2+i) / (3-2i) and my answer is (-8-i) / 13. Correct?

20. English

1. The knife is used to dice a radish. 2. The box is used to wrap gifts. 3. The dancing room is used to play ping-pong. -------------- Are they all grammatical? Do we have to put a pause after 'used' in each sentence?

21. numerical analysis

find the smallest positive root of the equation f(x)=2sinx+x-2=0 using the false positive method.

22. math

i am an odd number between 300 and 400.none of my digits are the same.the sum of the digits is five times my hundreds digit.

23. Math

find the roots of x3+6x2+11x+6=0 what is the formula and answer how to solve this ??

24. geography

how does stormwater effect beach erosion/loss of sediment on shorelines?

25. Physics

A constant force of 800n acts on an object of mass 40kg what is the acceleration placed on the object

26. Haramaya univercity

A 0.5 kg ball is thrown straight speed of 15m/s find the momentum of the ball at its maximum hieght

27. physics

A bullet in a gun is accelerated from the firing chamber to the end of the barrel at an average rate of 6.20*10^5 M/s^2 for 8.10*10^-4 s what is its muzzle velocity

28. Us. History

Q1. Why do you think received the greater benefits from the Columbus exchange, the Native American, or the European? Explain. Q2. How did weapons given by Europeans benefit the Native American? Q3. Could the Aztecs have made a chocolate cake? What key

29. sst

toothpaste shampoo mobile and telivision are four products used in daily life. create your own brand. make an advertisment to get your friends to buy this brand . also add a slogen a jingle or a catchy line.

30. nnkc

Calculate the amount of heat required to convert 15 gm water at 100

31. Math

Draw the graph n < 4, with the constraint n > 0.

32. Physics

1. The Following instruments are available in your laboratory. What would be the absolute uncertainties in the measurements made with these instruments? A. Ruler B. Protractor C. Watch D. Scale 2. By using the instruments from the task 1, you have

33. Chemistry

What is the percentage of sand (SiO2) in a 2.88g of a mixture If 1.93 of sand was recovered upon separation?

34. VCU

If Company A rents a truck for \$100 per day plus 0.50 per mile and Company B rents the same truck for \$60.00 per day plus 0.60 per mile how many miles must you drive for Company A to be a better deal 100+0.50= 60+0.60 =

35. PHYSICS

A potato gun shoots a potato horizontally from a height of 6 feet. How long does it take to hit the ground?

36. Physics

2. By using the instruments from the task 1, you have determined that it takes 3s for a toy car to travel through the distance of 162cm. What are the relative uncertainties of the distance and time measurements? Which measurements is the least uncertain?

37. UNAM

if you add 15.ml of a 0.250M HCl solution to 50.0ml of a 0.125 MHCl solution what will be the molarity of the resulting solution

38. Algebra 1

4a=1-b 4a=2-b

39. Algebra I

4a=4-b 4a=2-b

40. English- interview tips

0 Hi, It's not a nursing interview but I have an interview for Dietary aide on Tuesday. I will be attending nursing school on September 8th, 2015. how should I answer on a question, "Why are you qualified for this position?" How can I use my education as a

41. Biology

I did a lab and have been graded already. One of the questions asked us to pick good scientific questions from a list of choices. One of the choices read, "What soil properties determine the resulting color of a plant's flowers?". Note: I have changed the

42. Algebra I

If a rocket traveled at 7x10 to the 4 power how many hours would it take to reach the moon

2) You take the following measurements for the distance a toy car travels in 10 seconds during each 5 trials: 157cm, 175cm, 162cm, 168cm, 187cm. What are the relative uncertainties of the distance and time measurements? Which measurement is the most

44. math

Solve for x: 4 − (x + 2) < −3(x + 4) x < −7 x > −7 x < −9 x > −9 pls help me

45. Math

Two right angled triangles are joined with a common height and the height is 12m and base of each triangle = 5m.Find out the perimeter of whole figure

46. english

According to the strategies discussed in the lesson, when you have trouble making sense of what you have read, what is one strategy you can use? Share thoughts and questions with friends. Try not to overthink the problems you have. Read the same material

47. english

How can teaching someone else what you have learned from your reading help you understand it? The other person can pass a test about the information. The other person can tell you whether it is interesting. You will be forced to consider and clarify tough

48. english

Mrs. Sue or anybody can you help me with this question please?? Create a paraphrase of the following sentence from “The Cold Equations”: She held the letters out to him. "Will you take care of these and see that they're enveloped and mailed?" pls help

49. U.s history

Name 4 countries that are know for "specialty" foods or dishes that they would not have been able to create had the columbia exchange not occurred:

50. math(elmntry euclidean geometry)help needed ASAP!

The sum of the angles of a quadrilateral is 360°. Find the conditional, draw a diagram, and state the given and conclusion. CONDITIONAL FORM: If it is the sum of the angles of a quadrilateral, then it measures 360°. DIAGRAM: Not shown, but pictures a

51. AP Physics

An alien planet has g = 2.2 m/s2. If a ball is thrown upward from a tower 4.0 m above the surface of the planet at an initial speed of 38.1 m/s, at what time or times is the ball at a height = 38.6 m? If there is more than one time, list from earliest to

52. precalc

how do you find x for the function: g(x) = 2^3(square root of X)-1

53. calculus

what is the range for the function j(x)=5+sqrt of 2-x

54. Physics

Two trains approach each other on parallel tracks. Each has a speed of 20.0 km/hr with respect to the earth. If they are initially 18.0 km apart, how long (in seconds) will it be before they pass each other?

55. Derivative

(1):Y=|n(3x^2+2) (2):y=e^(x^3+x)

56. alGEBRA 1

simplify show all work: radical m^13

57. Chemistry

If 5ml of 10M HCl was added to 1 litre of 0.4M 3-(N-morpholino) propane sulfonic acid what would be the resulting pH?

58. Subj: Physics school: omar samatar secondary school

A body is moving with uniform acceleration it's velocity after 4s is 16m/s and after 10s is 28m/s. Calculate the distance travelled by it 12s?