# Questions Asked onFebruary 22, 2018

1. ## physics question

Due to electric effects on the earth and in the atmosphere, there is an electric field near the earth's surface that points down. Assuming the electric field is uniform with a magnitude of 150 N/C, what charge would a 145g baseball need to float as though

2. ## History

{The Second Great Awakening picture} What is this drawing of a camp meeting most likely illustrating? A. The growth of reform movements in the United States B. The large influence revivals had on Americans (My choice) C. The rise in the information of

3. ## Geometry

I have to angles and a side how do I do this Angle 1: 90 degrees Angle 2: 63 degrees Side 1: 5 mm I know angles need to add up to 180 so 90 +63=153 180-153=27 so the angle is 27 How do I figure out the sides? I have 5mm to start I am really not sure I

4. ## Science

How does the mass of the moon and the earth help the moon stay in its orbit around the earth?

5. ## Science

Why is it important for scientists to figure out how much matter is in space?

6. ## Math

If 100 students surveyed, about how many students own 2 or more pets? Explain

7. ## Science

A bullet of mass 10gm is fired from a gun of mass 1kg with a velocity of 100m/s. calculate the ratio of kinetic energy of the bullet and the gun.

8. ## algebra 2

Write polynomial function with the given zeros. x=1,2,3 *show work i need to be able to do this when i take my final

9. ## algebra 2

find the real or imaginary solutions of each equation by factoring. 3x^3+3x^2=27x *please show work so i can learn how to do this.

10. ## algebra 2

list all the possible rational roots of P(x) given by the Rational Root Theorom. P(x)=4x^4-2x^3+x^2-12

11. ## algebra 2

find all the zeros for each function. P(x)=2x^3-3x^2+3x-2

12. ## math - quadratic problems

1. What must be the dimensions of a rectangle to have an area 125m^2 and a perimeter of 60m? 2. In a right angle the hypotenuse is 15cm. if the second side is twice the length of the third side, calculate the exact length pf the shortest side. 3. THe

asked by need help with all
13. ## physics

a 50kg box is being pushed along a horizontal surface. the coefficient of kinetic friction between the box and the ground is 0,350.what horizontal force must be exerted on the box for it to accelerate at 1,20m/s square

14. ## physics

In an outdoor game a small bag of rice is thrown from near the ground with a velocity of 3.50 m/s at an angle of 30.00 above the horizontal. Find out how long the bag will be in the air before it lands at the same height from which it was thrown and how

15. ## Physics

An electron oscillates one thousand million times per second along the z-axis with a displacement z(t)=sin(ωt) mm. What is the value of the electric fie ld E(t) produced at a distance r of ten meters (x=10m, y=0, z=0)?

asked by Can't solve this :(
16. ## Im very confused and need help- Language Arts

1. The memory of cannon fire fades like evening mists 2. Footsteps echo softly on the grass above me 3.My bride kneels at a stone Part A) After reading the poem, what conclusion can you draw about the speaker? The speaker is a soldier, in his first battle,

17. ## Physics

Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1200N. F=

18. ## Chemistry

If a spectrophotometer was not zeroed before making measurements, what effect would it have on the calibration curve?

19. ## Science

1. How did plantesmals form plants A. They broke into smaller chunks B. They collided and stuck together** C. They cooled and pulled ice together D. They began to rotate 2. Whats the distance used to define the astronomical unit A. The average distance

asked by Ybn Mira
20. ## Research

Help Developing research questions based on racial disparities in Baltimore City vs. Baltimore County.

asked by Kierra Merton
21. ## Math

Is 146% of 33,610 two-thirds?

22. ## Math HELP!!!!

Median household income for African-Americans in Baltimore is nearly half that of whites, \$33,610 compared to \$60,156, according to the report by the US Census Bureau.? What is the fraction of this report? IN NEED OF STEPS

23. ## science

Please help me with the following questions. 1. As the mantle heats up due t the heat from the core, it begins to rise. Why does this happen? A. Because density is increasing as temperature increases B. Because density is decreasing as temperature increses

24. ## English

I need my rewritten paragraph to be checked for proper spelling, grammar, run-on sentences etc. Original: Scientists report that creatures living in the deep sea are in danger of starving to death. Millions of undiscovered species live, in the deep sea.

25. ## Math

A bicycle wheel has a diameter of 63cm how many meters does the bicycle travel for 100 revolution of the wheel

26. ## Social Studies

Describe how and why the middle colonies had such a diverse population.

27. ## Science

Which of the following diseases is not explained by germ theory? a- malaria b-HIV c-cancer d-flu

28. ## Biology

What is the nature of phloem vessel

29. ## differential eqautions

linear equations of order one 1. (x^2-1)dy/dx+2y=(x+1)^2

30. ## World History

Read the summary. The Ottoman Empire began as the unification of Seljuk tribes, organized by Osman Gazi (1). The Ottomans were a hybrid of the Turkish, Byzantine, and Muslim cultures (2). They embraced the Eastern Christian Orthodox religion and denounced

31. ## Math

What is conliniear points

32. ## Physics

Can someone help me do this? I'm not sure where to insert the numbers nor in which equation. The tires on your truck have 0.35 m radius. In a straight line, you drive 2600 m. What is the angular displacement of the tire, during this trip? Would the angular

33. ## physic

Two black holes (the remains of exploded stars), separated by a distance of 10.0 AU (1 AU = 1.50 ✕ 10^11 m), attract one another with a gravitational force of 6.50 ✕ 10^25 N. The combined mass of the two black holes is 5.40 ✕ 10^30 kg. What is the

34. ## math

The volume of ice-cream in the cone is half the volume of the cone. The cone has a 3 cm radius and height of 14 cm. What is the depth of the ice-cream, correct to 2 decimal places? Answer = 11.11

35. ## Calculus

For what values of x does the series 1 + 2^x + 3^x + 4^x + ... + n^x + ... converge? A. No values of x B. x >= -1 C. x > -1 D. x < -1 E. All values of x I think the answer is C, because n^(-1) = 1/n, which diverges.

36. ## History (pls help)

1. Which of the following actions accured first? A. Japan attacked Pearl Harbor. B. The Axis powers invaded neighboring territories. C. The Lend-Lease Act was proposed. D. The United States drafted men into the armed forces Help pls 7th grade history

37. ## history

After the middle of the 18th century, what options did Indians still have in responding to the encroachment of settlers? How had Indian behavior changed since the Iroquois mourning wars of the 17th century?

38. ## English

Which of these sentences from the story is an example of a hyperbole? Orpheus and Eurydice. A.) Soon he saw the River Styx, which separates the Underworld from the world of the living. B.) He was the King of Thrace, the most musical of all the Greek

39. ## Math-Physics

What is the total force on the bottom of a 400-cm-diameter by 1.5-m-deep round wading pool due to the weight of the air and the weight of the water? (Note the pressure contribution from the atmosphere is 1.0 x 10^5 N/m^2, the density of water is 1 g/cm^3,

40. ## Science

What it the answer to this Two nonmetal from group 16 are likely to form what

41. ## Calculus

Which integral represents the limit as x approaches inf. of 1/n(√(1/n) + √(2/n) + ... √(n/n))? A. int from 0 to 1 of x dx B. int from 0 to 1 of √x dx C. 1/2 * int from 0 to 1 of 1/√x dx D. 2 * int from 1 to 2 of x√x dx

42. ## algebra

The table below shows the percentage of households that own a microwave in different countries. Construct a stem-and-leaf plot of the data. Country Percent Of Household With Microwave Ovens _____________________________________________________________

asked by Erica McDonnell
43. ## Geometry

Find the geometric mean of the pair of numbers 6 and 10. sq rt 66 sq rt 70 60 2sqrt 15 my answer is 60

I don't understand this: Russian ice skater, Alina Zagitova, spins her way to projected Gold in the 2018 Olympics. During one particular spin, she moves from a camel spin that rotates at about 95. RPM to a tight spin. If her rotational inertia changes from

45. ## Chemistry

A student took 100 mL of a solution of Mg(OH)2 and reacted it with H2SO4 (aq) to calculate the concentration of hydroxide ions in the solution.  If 13.75 mL of 0.010 M H2SO4 was used to react with all of the OH- (aq) in the 100-mL solution, what was the

46. ## Math

-2v - 7 = -23 what is v?

47. ## Chemistry

cobalt(11)chloride is commonly obtained from chemical supply houses as a hydrate with the formula CoCl2*6H2O. An analysis showed that 25.0g of this hydrate contains 11.3g of water.What is the percent water by weight in this hydrate?

48. ## math

Gabriela has dinner at a cafe and the cost of her meal is \$45.00Because of the service, she wants to leave a 15% percent tip. What is her total bill including tip?

49. ## Science

"Most of the solar radiation is absorbed by the atmosphere and much of what reaches the earth's surface is radiated back into the atmosphere to become heat energy." What can you conclude about heat energy? Most of the sun's energy is used to make heat

50. ## Physics - last question I'm stuck on!

A pellet is fired through two circular plates .8 m apart, both rotating at -95rad/s. The angular displacement of second bullet hole is 82° from the first bullet hole. Calculate the bullet’s speed in m/s. If someone could help me see where to insert the

51. ## Math

what are the perimeter and area of a rectangle with a length of 20in and a width of 50in

52. ## physics - please check my answer?

Consider a block of copper that is a rectangular prism (a box) with sides 15 cm by 20 cm by 50 cm. The resistivity of copper is 1.68e-8. If you consider the resistances between the three sets of parallel faces, which has the middle value? A. The resistance

53. ## Math

3(4 - 2x) = 2x? How do I find x

54. ## Physics

A girl (22.5 kg) goes down a straight slide inclined 38.0° above horizontal. The child is acted on by his weight, the normal force from the slide, kinetic friction, and a horizontal rope exerting a 30.0 N force as shown in the figure. How large is the

55. ## physics

A mass m1 = 28 kg on a frictionless ramp is attached to a light string. The string passes over a frictionless pulley and is attached to a hanging mass m2. The ramp is at an angle of θ = 31° above the horizontal. m1 moves up the ramp uniformly (at

56. ## Trigonometry

Find the distance from the ladder to the base of the slide, marked with an x in the diagram. Give your answer accurate to one decimal place. The height of the right angle triangle is 4 m, the hypotenuse is 7 m and the missing variable is on the bottom

57. ## Can someone check my answer plzzz!!!

Simplify (6x^-2)^2(0.5x)^4 show your work IS this right?? (6x^-2)^2 * (0.5x)^4 =6^2 x^-4 *(0.5)^4 x^4 =(36 * 0.0625) * (x^4 * x^-4) = 2.25 * x^0 =2.25 *1 =2.25 is this right Can you check my answer?

asked by that emo girl!
58. ## History

1:Affirmative action is a policy designed to do which of the following? Select all that apply (2 points) A:Distribute reparations to victims of discrimination. B:Increase diversity in education and employment*** C:Counteract the effects of past

59. ## Tutor

Hi, I am a student a Michigan's connections academy and I need a tutor to help me out with some types of math, science, social studies. And a few others some stuff I don't understand and all of my teachers don't explain very good except for my math

asked by Black Bandit
60. ## algebra 2

explain how to determine the end behavior of a polynomial.explain throughly with example(s)

61. ## History

Which of the following are contributing factors to de facto segregation in America today? A:judicial rulings and political parties B:executive action and interest groups C:state legislation and public opinions D:housing patterns and economic opportunity***

62. ## Can someone help me Math problem!!

1. Which of the following is equivalent to x^5y^2/xy^2 when x not= 0 and y not= 0? a. x^6y^5 b. x^5y c. x^4y d. x^4

asked by that emo girl!
63. ## Science

7. The rate at which velocity changes is? A. Acceleration B. Direction C. Speeds D. Velocity 8. Which is the example of velocity? A. A pickup driving 30 km in 20 minutes B. A car slowing down on a sharp curve C. An airplane traveling 450 km/h D. An 18

64. ## MATH

Does anybody know how (M+/- √M^2-4FGr^2/G))/2 equal to 1.85*10^30+/- 1.32*10^30 When M=1.85*10^30,F=5.00*10^25, G=6.67*10^-11 and r=1.5*10^12. I don't know where 1.32*10^30 comes from. Please explain with steps

65. ## Chemistry - Equilibrium

How should I do this question? Thanks Suppose you wanted to produce an aqueous solution of pH = 8.60 by dissolving one of the following salts in water: KNO2 At what molarity? two significant figures.

66. ## 3-D Computer Modeling

1. In the simplest terms, which of the following is 3-D modeling is all about? A. Computers B. Collaboration C. Creativity D. Shapes 2. Only animate objects can be made into three dimensions. A. True B. False 3. Nothing has revolutionized animation like

67. ## Math

For safety reasons, the angle between a ladder and the ground should be between 65° and 80. A ladder that is 5 m long is placed so that it reaches a window on the top floor of a house. If the foot of the ladder is 1.5 m from the house, is the ladder safe?

68. ## Chem

A sample of NH4HS(s) is placed in a 2.61 −L flask containing 0.120 mol NH3(g). NH4HS(s)⇌NH3(g)+H2S(g) Kp=0.108 at 25∘C Part A What will be the total gas pressure when equilibrium is established at 25∘C? I'm getting P = 1.21atm which is wrong. Can

69. ## Maths

If the scale on a map is 1cm = 1km, how do I convert 3.4cm to km?

70. ## physics please check my answer

Consider the following circuit that contains a battery and six identical resistors: The diagram has branch A with one resistor, connected to branch B with two resistors connected in parallel, and then branch B is connected to branch C with three resistors

71. ## Lit

Will some help me write an alternate ending to frankenstein. Please

72. ## pre algebra

The table below shows the percentage of households that own a microwave in different countries. Construct a stem-and-leaf plot of the data. Country Percent Of Household With Microwave Ovens _____________________________________________________________

asked by Erica McDonnell
73. ## physics

A skydiver of mass 81.5 kg (including outfit and equipment) floats downward suspended from her parachute, having reached terminal speed. The drag coefficient is 0.533, and the area of her parachute is 20.96 m^2 . The density of air is 1.14 kg/m^3 . What is

74. ## Math

An encyclopedia set has 36 volumes. Each volume is 1 1/4 inches thick.Three volumes have already been placed on the shelf that is 30 inches long. What information is not needed to determine how many more volumes will fit on the shelf?

75. ## physics question

A 3m slinky rests on a table with a student holding each end. The students laterally shake the ends of the slinky to generate transverse waves. The student on the left shakes the slinky at 4 Hz with a 5 cm amplitude and the student on the right shakes it

76. ## Math

Shandel went to the County Fair this summer and was surprised to see a math game on the midway among the games of skill and chance. Picture of a Midway BarkerIn the game, the barker starts by thinking of a math rule or calculation. The player spins a

77. ## Math

Good evening. I have a math problem that I just need a bit of help on please. A trap for insects is in the shape of a triangular prism. The area of the base is 3.5in and the height of the prism is 5 in. What is the volume of this trap? Do I just need to do

78. ## Math

Only boxes less than 3 1/2 ft wide will fit through a doorway. Which measurements show Th widths of three boxes that will each fit through the doorway?

79. ## Calculus

For the series from 1 to inf of (2n^2 - 1)/(3n^5 + 2n + 1), would it be possible to compare (2n^2 - 1)/(3n^5 + 2n + 1) to 2/3^3 for the limit comparison test?

80. ## Chemistry

Suppose you wanted to produce an aqueous solution of pH = 8.60 by dissolving one of the following salts in water: KNO2 At what molarity?

81. ## Math

A student wrote this statement: "A triangular prism has a height of 15 inches and a base area of 20 square inches. The volume of the prism is 300 square inches." Identify and correct the error. I am not sure because I am new at doing this kind of math.

82. ## Physics

At a distance H above the surface of a planet, the true weight of a remote probe is six percent less than its true weight on the surface. The radius of the planet is R. Find the ratio H/R.

83. ## Physics

The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force SM that the sun exerts on the moon is perpendicular to the force EM that the earth exerts on the moon. The masses are: mass of sun = 1.99 1030 kg, mass of

84. ## Physics

A raindrop has a mass of 5.9 10-7 kg and is falling near the surface of the earth. Calculate the magnitude of the gravitational force exerted in the following. (a) on the raindrop by the earth

85. ## Physics

Venus has a mass of 4.86 1024 kg and a radius of 6.05 106 m. (a) What is the acceleration due to gravity on Venus?

86. ## Physics

A 5.0-kg rock and a 3.8 10-4-kg pebble are held near the surface of the earth. (a) Determine the magnitude of the gravitational force exerted on each by the earth.

87. ## biology

Cross 2 heterozygous running, heterozygous black mice A cross between a mouse that is waltzing brown with a mouse that is running brown generates some offspring that waltz. What are the parental genotypes? What Is the offspring phenotype ratio A cross

88. ## science

Define inductive reasoning. using general theories or principals to make predictions about more specific situations doubting or not accepting conclusions or ideas until they have been adequately tested and verified A? answering questions based on what can

89. ## English

Narrative Essay When I finally got home I saw a mysterious stranger sitting on my porch

90. ## Essay

Do Electronic Devices Improve Our Lives? Please help me!! Someone give me ideas!!! I have writers block, because of how many stories I do! Please Help!!! I only need ideas!!!!

91. ## algebra 2

write a polynomial function in standard form with zeros : -1,-1,6 SHOW WORK PLEASE

92. ## math

Dear people of Jiskha, Thank you for helping me today

93. ## french revolution

After meeting @ Versailles the new national assembly produced a document. What was it? Was the Tennis Court oath a document or is it referring to the declaration of rights of man? Who did it apply to?

94. ## physics

Two banked curves have the same radius. Curve A is banked at an angle of 12°, and curve B is banked at an angle of 20°. A car can travel around curve A without relying on friction at a speed of 19.5 m/s. At what speed can this car travel around curve B