# Questions Asked onJune 4, 2020

1. ## Physics

A crane lifts a 425-kg steel beam vertically upward a distance of 95 m. How much work (in kJ) does gravity do on the beam if the beam accelerates upward at 1.8 m/s2? Neglect frictional forces. Give your answer to 3 significant figures and remember that

2. ## Science

Write the following in scientific notation in their respective SI units ( 3 dig fig) a) 286.6 km b) 0.864um c) 760mg d) 62.1 ps

3. ## history

Which were impacts of the Vietnam War on American culture? Select all that apply. A. Government regulations were placed on television broadcasting to keep images of the war from reaching the public. B. A new movement sought to restore the proper role of

4. ## mathematics

What is the probability that when you roll two 6- sided dice that the dice add up to 8? I've been stuck on this problem for a while I really need help please.

5. ## English

Which element of the story best helps the reader understand why Sargon is grown? 1 setting 2 characterization 3 mood 4 theme

6. ## Physics

What is the work done by the movers on the chest when they lift it straight up 1.0 m compared to sliding it up the 4.0-m-long the frictionless ramp?

7. ## Algebra

Hi! I know this may be cheating but I just wanna ask if one of yall could tell me the answer just for these 3 questions, it would be a bunch of help! =,) 1. Write the equation in point-slope form of the line that passes through the given points. Then write

8. ## science

The reaction BrO- + 3SO32- → Br- + 3SO42- : has the rate law, Rate = k[BrO-][SO32-] a. What is the order of the reaction with respect to each reactant?

9. ## Mathematics

X is partly constant and partly varies with y.when y=3 x=11 and when y=4 x=14. A)find the relationship between x and y. B) fine x when y=10

10. ## Maths

A 4cm long chord subtends a central angle of 60 degree what us the radial segment of the circle

11. ## Anthrophology

what is the oldest stone tool technology? a.acheulian b.oldowan c.lavolious d.mousterian

12. ## Math

If the diagonal of a rectangle is 25 cm and the length is 3cm more than triple the width what are the dimensions

13. ## Mathematics

A cone is 8 cm high and it's vertical angle is 62 degrees. Find the diameter of it's base

14. ## Physics

A FORCE OF 40N APPLIED AT THE END OF THE WIRE OF LENGTH 4M AND DIAMETER 200MM PROCESS AND EXTENSTION OF 0.24 CAL YOUNG MODULUS

15. ## science

June 2020 Test Three charges lie along the x-axis. One positive. charge q1=15micro coulomb is at x =2.0m and another positive charge q2 =6.0 micro coulomb is at the origin. At what point on the x-axis must a negative charge q3 be placed so that the

16. ## Mathematics

an exponential sequence (geometric progression) has first term x and common ratio x ,x≠1 write down the sum of the first n terms of this sequence (1a): write down the sum of the first n terms of this sequence (1b): |x|infinity (1c): if An=sum r=1 to n

17. ## Chemistry

What mass of phosphorus will be needed to produce 5.25 mol of P4O10? 4P + 5O2→ P4O10

18. ## physics

A camper does 7.4 x 102 J of work in lifting a pail filled with water 3.4 m vertically up a well at a constant speed. a)What force is exerted by the camper on the pail of water? b)What is the mass of water in the pail?

19. ## Math

What is the proof for the sum of all rows above the nth row in the Pascal triangle is one less than the nth row?

20. ## Pre Calculus

Find an equation for the slope of the graph of y=(x^2)-2 at any point

21. ## English

what conclusion can you draw about jason from the dialouge in line 10 in a surprising point of view A. Jason procrastinate doing his schoolwork. B. Jason and Ms. Smith have. good relationship C. Jason is one of the best students. D.Jason is embarrassed to

22. ## Algebra

Given the function f(x)=4|x|, what would f(x) be as a piecewise function(That does not include absolute value symbols)?

23. ## Physics

Exercise 1: a) What is the apparent weight for a roller coaster rider at the bottom of a loop vs at the top of a loop? b) What is the min speed the car must pass along the loop so that the rider does not fall out while upside down at the top of the loop?

24. ## Algebra

Solve: please include statement and reason Given: ΔАВС, m∠ACB = 90° CD ⊥ AB, m∠ACD = 30° AD = 6 cm. Find: BD

25. ## math

How can you find the volume of a box without filling it completely? Will your answer be exact? Explain. How can you find the volume of a box without using cubes?

26. ## Calculus

Find the derivative by rule: dy/dx 1/2√x

27. ## Maths

I don't know how to solve this by elimination 4c - 3d=1 2c + 4d=17

28. ## Mathematics

A bag contains only red, green, brown and yellow marbles. The probabilities of selecting each colour are shown below Colour= red green brown yellow Probability = 6x 2x x 4x Find the probability of selecting a red marble

29. ## Mathematics

Using ruler and a pair of compasses only I.construct a triangle ∆XYZ such that XY=10cm angle

30. ## Mathematics

An arc substend an angle of 105 degree at d centre of a circle of radius 6cm . find the length of the arc if pi 22/7

31. ## Mathematics

she realizes one of the "avrages" was 79... she just can't remember if it was the mean or median. She also remembered that 27 students took the test, the test was out of 100 points, and 18 of them scored 70 or greater, and of those, 7 scored higher than

32. ## physics

A student pushes against a large maple tree with a force of magnitude 250 N. How much work does the student do on the tree? wouldn't it be zero. If not, what could be the right answer? W=F*D W=250*0 W=0

33. ## English

Which best describes the boy in "Boy Flying"? A. He is eager to leave the ground and never return. B. He is proud of all the hard work he did to learn how to fly. C. He is confused about how he is able to fly when no one else can. D. He is separated from

34. ## mathematics

Lydia bought a shirt at 20% off its retail price of \$40. She paid 5% tax on the price after the discount. How much did Lydia pay for the shirt?

35. ## Physics

A train moving with uniform acceleration takes 20s and 30s How much distance it travels before coming to rest

36. ## Math

The Amold family arrived at the beach at 10:30 A.M. They spent 3 3/4 hours there. What time did they leave the beach?

37. ## Social studies

Name 10 reasons why the citizens of Zimbabwe are dissatisfied with the current president, Emmerson Mnangagwa. How has the the country's situation remained the same since Mugabe's removal?

38. ## Chemistry

So I had a test question that asked the following, "What will happen when a reactant is added to a system at equilibrium?" The answers are A. more reactants will form B. The system will remain at equilibrium C. Only the concentration of the reactant will

39. ## Science

What are three research goals of scientists in Antarctica? can someone list 3 please?

40. ## Maths

x^x+(7-x)^(7-x)=93 What is x? Am thinking of using Lambert w function but am still lost on how to apply it I Know that W(xe^x)=x

41. ## Maths

How do I show that Sum r=0 to n (-1)^r ncr=0?? Please how have tried and tried?

42. ## Mathematics

Hailey's grandmother made a quilt for her birthday composed of 125 tiles that are each one third square feet, what is the total area of the quilt?

43. ## Chemistry

If 33.5 g of Mg(OH)2 reacted, what mass of H2O could be produced? Mg(OH)2(s) + HCl(aq) ----> MgCl2(aq) + H2O(l)

44. ## history

after world war II why did russia's stance toward europe become dominant and the united states' stance became one that they felt that they should be an influence in europe?

45. ## English

What is the importance of Ale house in she stoops to conquer