1. physics

The horizontal surface on which the objects slide is frictionless. If F = 12 N and M = 2kg, (a) what is the tension in string 1? (b) What is the acceleration of the system?

2. English

Which of the following contains an error in verb voice? I would buy a large sailing yacht if I were to become rich. Had I known you were going to be late, I would have started by now. ** If I were going on this trip, I would have planned a fishing trip. If

3. Algebra 1

Solve by completing the square: A rectangular patio has a length of (x + 6) m, a width of (x + 8) m, and a total area of 400 m2. Find the dimensions to the nearest tenth. Please help me with this math problem. Thanks so much.

4. English

One morning, when Gregor Samsa woke from troubled dreams, he found himself transformed in his bed into a horrible vermin. He lay on his armor-like back, and if he lifted his head a little he could see his brown belly, slightly domed and divided by arches

5. Geometry asap

The center of a circle is (h, 7) and the radius is 10. The circle passes through (3, -1). Find all possible values of h.

6. Physics (Electric Potential)

Good afternoon! I'm stumped with this question here. Q: An electron starts from rest 32.5 cm from a fixed point charge with Q=-0.125μC. How fast will the electron be moving when it is very far away? I got an answer of 5.54 * 10^-16 J, but apparently it is

7. physics

The three blocks shown are released from rest and are observed to move with accelerations that have a magnitude of 1.5 m/s^2. Disregard any pulley mass or friction in the pulley and let M = 2 kg. a) What is the magnitude of the friction force on the block

8. Science

A mixture of 10.0g of Ne and 10.0g of Ar was kept in a 1.00 L container at 765 torr. Calculate partial pressure of Ar inside container A) 508 torr B) 257 torr C) 614 torr D) 125 torr

9. Physics

Violet light and red light travel through air and strike a block of plastic at the same angle of incidence. The angle of refraction is 30.700° for the violet light and 31.350° for the red light. The index of refraction for violet light in plastic is

10. math

A fan has five equally spaced blades. Suppose you line up two fans directly on top of each other. What is the least number of degrees that you can rotate the top fan so that the two fans are perfectly aligned again?

11. physics

Two blocks connected by a cord passing over a small, frictionless pulley rest on frictionless planes: a) What is the acceleration of the blocks? b) What is the tension in the cord? c) Which way will the system move when the blocks are released from rest?

12. math

one out of 43 high school ball players plays college ball.one out of 38 college players plays professional ball. what fraction of high school players plays professional ball?

13. Math

Hello, could someone check my answers please? The Equation; \$4.50h = 20.00 shows the cost to play h hours of miniature golf how many hours of golf were played? Answer choices: A: 3 HOURS B:4 HOURS C: 4.8 HOURS D: 6.4 HOURS My answer: 4.8 hours

14. Science

100ml of 1.0 m KOH solution will neutralize 100 ml of 1.0 M H2SO4 solution Thank you!

15. Science

minimum temperature required to dissolve 40g NaCl in 100g water thanks a ton

16. maths

A man covered a certain distance at some speed. Had he moved 3 kmph faster, he would have taken 40 minutes less. If he had moved 2 kmph slower, he would have taken 40 minutes more. The distance (in km) is:

17. Maths

On a clear day, you can see 11.5 km in any direction from a particular lookout. If a straight road is 6.9 km from the lookout, what length of the road can be seen from the lookout?

18. Physics

A filmmaker wants to achieve an interesting visual effect by filming a scene through a converging lens with a focal length of 52.0 m. The lens is placed betwen the camera and a horse, which canters toward the camera at a constant speed of 7.4 m/s. The

19. science

which energy transformation takes when a firecracker explodes. plz, help I don't want answers I want help plz.

20. English

Include a colon and an explanation. The town reminded me of my childhood vacations: both were on the beach. Is this right?

21. science

A scientist is studying a chemical reaction. She predicts that after the reaction the product will have less chemical potential energy than the reactants had originally. The scientist observes the reaction, and notes that no light or sound is produced.

22. ELA

In Act 1 of a "Christmas Carol", Scrooge and Marley, what purpose might you set for reading as you scan the list of "people of the play" and see characters with such names as Portly DoDooder, the Ghost of Christmas Past, Fezziwig and a corpse? 1)to

23. Biology 20

Name 3 substances that the liver stores: 1) glycogen. When there is lots of sugar in the blood, the liver converts it into glycogen which is used for storage. Glycogen formed us determined by insulin which is released from pancreas. I'm not sure of what

24. Science

Which is greater, the mass of the compounds before a chemical reaction or the mass of the compounds after a chemical reaction? The mass of the compounds before is greater. The mass of the compounds after is greater. The masses before and after are equal.

25. English

The first day of my vacation was like the first day of spring: bright, cool, and colorful. Which literary device is used in this sentence? A) Allusion B) Hyperbole C) Imagery D) Simile ** I'm leaning towards D because the sentence uses "like", but I also

26. English

Which of the following is an example of indicative mood? A) If I were less allergic, I would spend more time outdoors. B) The hawk has killed several birds at the backyard feeders. C) Where has the water been pooling the most in the garden? D) If we want

27. Math - 6th Grade Geometry

So, I'm not asking for answers at all. That's wrong. But, I am asking for help with this question. I keep going and rereading all the needed information I'm provided on Connexus but I still don't understand this. Maybe I'm just dumb and need to start

28. ALGEBRA 1!!!! PLS HELP!!!!

find four consecutive even integers such that if the sum of the first and third is multiplied by 3 the result is 44 more than 4 times fourth

29. Chemistry

I don’t know how to do this because I was sick when this was thought. If someone could please explain how to do or set up the first problem. A. Measure out 0.130 moles of salt (NaCl) into a blue, dry cup. You need to convert to mass in grams. Show work:

30. English

1. Dad is in front of the room. 2. Dad is in back of the room. 3. Dad is in the back of the room. 4. Dad is at back of the room. 5. Dad is at the back of the room. [Which ones are the opposite of Sentence 1? Do we have to use 'the' or not?]

Think about how the actions of government affect the lives of its citizens. Government sets economic policies, for example, that shape whether the economy thrives or struggles. This in turn might mean that an individual person gets a good job or has a hard

32. Social studies

1. Explain the advantages and disadvantages you discovered for interdependence. Include examples from the past and present of interdependence in Central America. 2. Explain the advantages and disadvantages of independence. Include examples from the past

33. English

1. We play basketball in the gym. 2. We play basketball at the gym. 3. We play soccer on the playground. 4. We play soccer in the playground. 5. We play soccer at the playground. 6. He is playing in the room. 7. He is playing at the room. [Can we use all

34. math

what is the rate of discount if a sweater regularly priced at \$45. and sold for \$36.

35. Pre algebra

The back-to-back stem-and-leaf plot below shows the ages of patients seen by two doctors in a family clinic in one day. Compare the ages of the patients of doctor 1 and doctor 2 using the mean and the median of each data set. Doctor 1 Doctor 2 | 3 | 5 9 2

36. Social Studies

Why is diplomacy a key part of U.S. foreign policy? I can't figure this out.

37. language arts

6. Poets use imagery and words with different connotations and denotations. In a paragraph, define and provide an example of imagery, connotation, and denotation. Then, explain how poets use these. Does this fit the criteria The imagery in a poem is a

38. Calc

So the q is; You need to enclose a rectangular field with area 9600m^2, then divide the field into 2 sections. Whats the minimal amount of fencing required to accomplish this. So i have 3x+2y, and 9600=xy. i TRIED ISOLATING the second formula and plugging

39. Math

5, -4 -13 -22 write a rule for the sequence Need some help A - starts with - 9 and add 5 repeatedly B - starts with 5 and add 9 repeatedly C - starts with 5 and subtract - 9 repeatedly D - starts with 5 and add - 9 repeatedly I think its B

40. science

over millions of years, of time and islands vegetation shifts. the seed producing plants that dominated the early origins of the island die out in favor of new species of plants that do not produce seeds but provide a good habitat for insects. how is this

41. Math

Turn this equation into Ax+By=C form: Y=-3x+5

42. history

how did nations collectively intensify the conditions of the Great Depression? The breakdown in economic interdependence led to the inflation of multiple currencies worldwide and reduced international trade B. the league of nationâ€™s lck of bylaws to

43. social studies

what did the actions of the border ruffians demonstrate about the slavery debate? select all that apply a. that opposing sides would resort to violence b. that abolitionists would triumph by using the press c. that settlers would follow the laws d. that

Given the following values which point would be considered an outline? X: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 Y: .8 | 2.1| 3.1 | 3.8 | 5.2 | 8.4 | 6.9 | 8.1 | 9 A: (2,2.1) B: (4, 3.8 ) C: (6, 8.4 ) D: (9,9) I think it would D. I am right ?

45. Science

All of the following require breaking and forming chemical bonds except: freezing ice ** a plant decaying a piece of silver tarnishing roasting a marshmallow

46. Science

All of the following are indicators of a chemical change except: heat production color change phase change ** bubbling or fizzing A lot of people are saying color change, however in my lesson it says a chemical change has indicators like: Color change

47. Maths

A differential equation question Find the general solution to the equation (dy/dx)^2 + sinxcos^2x(dy/dx) - sin^4x = 0 Thanks

48. Science

The Air temperature is -2 degrees Celsius (28 degrees Fahrenheit) . Which statement correctly describes what happens to snow at this temperature? A. Snow Starts to melt. B. Snow remains frozen C. Snow changes to steam D. Snow melts and then freezes again

49. physics

A mass m = 14 kg rests on a frictionless table and accelerated by a spring with spring constant k = 4884 N/m. The floor is frictionless except for a rough patch. For this rough path, the coefficient of friction is μk = 0.52. The mass leaves the spring at

50. Algebra 1

A ball is thrown from the top of a 50-ft building with an upward velocity of 24 ft/s. When will it reach its maximum height? How far above the ground will it be? Use the equation h(t)= -16t2 + 24t + 50 Please help me with this problem, thanks.

51. China

Hello, I have a quick question; It's not for any assignment, but just a little question. When did Ancient China start building the Great Wall, and when did it end? I just want a quick answer, no links. thx!

52. Probability

In the following problem, please select the correct answer. Let X be a non-negative random variable. Then, for any a>0, the Markov inequality takes the form P(X≥a)≤(a^c)E[X^5]. What is the value of c? c= unanswered Suppose that X_1,X_2,⋯ are random

53. Math

When trying to find the probability of drawing a violet marble from a jar containing 9 red, 4 brown, 10 yellow, and 8 violet marbles