mt

Popular questions and responses by mt
  1. physics

    While standing at the edge of the roof of a building, you throw a stone upward with an initial speed of 7.53 m/s. The stone subsequently falls to the ground, which is 14.7 m below the point where the stone leaves your hand. At what speed does the stone

    asked on May 2, 2013
  2. Stats

    I roll a pair of fair dice and compute the number of spots on the two sides facing up. Denote this total by X. The probability distribution of X is X Prob 2 1/36 3 2/36 4 3/36 5 4/36 6 5/36 7 6/36 8 5/36 9 4/36 10 3/36 11 2/36 12 1/36 The probability that

    asked on July 2, 2013
  3. STATS HELP

    Final averages are typically approximately normally distributed with a mean of 72 and a standard deviation of 12.5. Your professor says that the top 8% of the class will receive an A, the next 20% a B, the next 42% a C, the next 18% a D, and the bottom 12%

    asked on April 16, 2015
  4. Physics

    The angular speed of an automobile engine is increased at a constant rate from 1200rev/min to 3000rev/min in 12s. How many revolutions does the engine make in this 12s interval? I worked it out to be 25200 rev. Is that right?

    asked on December 16, 2010
  5. probability problem

    The probability is 1 in 4,000,000 that a single auto trip in the United States will result in a fatality. Over a lifetime, an average U.S. driver takes 50,000 trips. (a) What is the probability of a fatal accident over a lifetime? Explain your reasoning

    asked on September 16, 2008
  6. Statistics

    1. In a study of heart disease in male federal employees, researchers classified 170 volunteer subjects according to their socioeconomic status (SES) and their smoking habits. SES categorized as high and low. Individuals were asked whether they were

    asked on June 26, 2014
  7. MITx: 2.01x

    Q2_1: QUIZ 2, PROBLEM #1 The shaft ABC is a solid circular cylinder of constant outer diameter 2R and length 3L. The shaft is fixed between walls at A and C and it is composed of two segments made of different materials. The left third of the shaft (AB) is

    asked on July 26, 2013
  8. math

    Reza is helping En Shah to make a box without the top.The box is made by cutting away four squares from the corners of a 30cm square piece of cardboard as shown in Figure 1 and bending up the resulting cardboard to form the walls of the box.

    asked on June 8, 2015
  9. Calc 2

    I'm asked to find the arc length of the curve y=3+(1/2)sinh(2x) from 0 to 1. I figured it out up to the integral of sqr(1+(cosh(2x))^2) from 0 to 1, but I'm not sure how to go on to solve it.

    asked on April 3, 2012
  10. math

    A market research company finds that traffic in a local mall over the course of a day could be estimated by the function P(t)=-1800cos(𝝅/𝟔𝒕)+𝟏𝟖𝟎𝟎 where P,is the number of people going to the mall ,and t is the time, in hours ,after the

    asked on June 8, 2015
  11. Stats

    The incomes in a certain lg. population of college teachers have a normal distribution with a mean of $35,000 and st. dev. of $5000. Four teachers are randomly selected. What is the probability their average salary will exceed $40,000?

    asked on July 2, 2013
  12. Science

    A newspaper story on AIDS reports that an allele (R) confers complete resistance to HIV when homozygous and that 1% of the human population is resistant (RR). The story also states that 20% of the population carries one copy of the resistance allele (i.e.,

    asked on April 7, 2013
  13. math

    given a right triangle ABC with the right angle at B find AB if AC = 25 in and BC = 6 in Approximate the length of AB to two decimal places

    asked on May 4, 2012
  14. math

    A market research company finds that traffic in a local mall over the course of a day could be estimated by the function P(t)=-1800cos((pie(9))/6 t)+1800 where P,is the number of people going to the mall ,and t is the time, in hours ,after the mall opens.

    asked on June 8, 2015
  15. MITx: 2.01x

    Q2_2: QUIZ 2, PROBLEM #2 The composite beam AB, of length L=2m, is free at A (x=0) and fixed at B (x=L) and is composed of a round cylindrical core of constant radius R0=1cm bonded inside a sleeve of thickness R0 (outer radius 2R0=2cm). The beam is loaded,

    asked on July 26, 2013
  16. history

    how did the migration to florida introduced new farming practices

    asked on September 22, 2010
  17. Physics

    How do I find tangential speed with just radius, time and angular acceleration?

    asked on January 3, 2011
  18. maths

    solve Z^5 - 1 =0 where Z is a complex number

    asked on July 23, 2009
  19. math

    Aaron own a shipping company. He plans to move into his new office which is near to the city centre. He needs some filing cabinets to organize his files. Cabinet x which costs RM100 per unit, requires 0.6 square meters of the floor space and can hold 0.8

    asked on June 9, 2015
  20. math

    Aaron own a shipping company. He plans to move into his new office which is near to the city centre. He needs some filing cabinets to organize his files. Cabinet x which costs RM100 per unit, requires 0.6 square meters of the floor space and can hold 0.8

    asked on June 8, 2015
  1. Physics

    help

    posted on March 30, 2019
  2. biology

    NO

    posted on November 24, 2018
  3. statistics

    A) 0.79 B) 1.55

    posted on October 26, 2016
  4. math

    P(t)=-1800cos((pie(n))/6 t)+1800

    posted on June 8, 2015
  5. math

    sTEVE I CANT UNDERSTAND

    posted on June 8, 2015
  6. physics

    F=m*((v^2)/r) Therefore (18.1^2m/s)/80m*3800=F Therefore F=15561N

    posted on March 30, 2014
  7. Improving Your Writing

    This is more a comment,I am also in this boat, its very confusing if your only responsibility is Ruth and Jack why with all the names of four other employees. Why would they give you so much info you really don't need, and want you to make-up part of the

    posted on September 29, 2013
  8. MIT 2.01x

    ww.imagehousing. com/imageupload.php?id=1149147

    posted on July 26, 2013
  9. MIT 2.01x

    here imagehousing. com /imageupload.php?id=1149147

    posted on July 26, 2013
  10. MIT 2.01x

    I put this Q2_1_1 Answer but the answer its wrong i put this -t_0*(L/3) and the answer is wrong

    posted on July 26, 2013
  11. Physics

    My bad... I meant the angular acceleration - I was given rad/sec^2 as the units.

    posted on January 3, 2011
  12. Physics

    Can I just do that when my radius is in radians?

    posted on January 3, 2011
  13. Physics

    Er, wait. That is probably wrong. I think I have to go back and convert a few things around.

    posted on December 16, 2010
  14. Physics

    Oh, I had to find it in rev/min^2.

    posted on December 16, 2010