Could someone try to help me solve those 3 questions by giving me clues or equations?

With what speed (SI Units) must a ball be thrown directly upward so that it remains in the air for 12.5 second?

An object of mass 197kg is at rest. If a force of 2.5N is applied for 30 seconds, what will its final velocity be?

How much work is done by slowly lifting a 1.75kg sack of flour to a height of 2.0m?

  1. 👍
  2. 👎
  3. 👁
  1. U R dumm

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    Lesson 8: Systems of Linear and Quadratic Equations Check my work 1. Solve the system of equations. y = 2x^2 - 3 y = 3x - 1 a. no solution b. (-1/2, 5), (2, -5/2) c. (-1/2, -5/2), (2,5)*** d. (1/2, 5/2), (2, 5) many real

  2. Educational Technology

    1.Context clues can be used to determine the ________of an unfamiliar word a. meaning*** b. pronunciation c. tense d. part of speech 2.If a sentence contains context clues, these clues are usually located_______ the unfamiliar

  3. ELA

    Determining Word Meaning Quick Check 5 questions: What are Context clues? A. descriptions in a text that help the reader picture what the author is describing. is my answer.

  4. Algebra 2

    I'm working on Lesson 6: Absolute Value Equations and Inequalities Algebra 2 A Unit 2: Expressions, Equations, and Inequalities and feel confident in my first few answers, but beyond that am lost. May I have some help? **=the

  1. Mathematics

    Solve the simultaneous equations, giving your answers in base two. 11x +11y =1001 10x - y =11 Pls help

  2. Algebra

    equations and inequalities unit test for questions 1-5, solve the equation 4. 3(4-2x)=-2x (1 point) a. -1*** b. 1 c. 2 d. 3 5. 5.4+0.2x=-1.4x+8.6 a. 2 b. -2 c. .2*** d. 20 For questions 6-7, simplify the expression 6. -4 - 5(x+8)

  3. How do I do this.?(Math.)

    Use the Substitution method to solve the system of equations. y - 2x = -5 3y - x = 5 Solve one of the equations for x or y. Let's solve the first one for y: y - 2x = -5 y = 2x - 5 Now let's substitute 2x - 5 for y in the second

  4. English

    On the KWLQ chart, what does K stand for?(1 point) What New Questions Do I Have? What New Questions Do I Have? What I Learned What I Learned What I Know What I Know What I Want to Know What does making predictions about a text

  1. Math

    A 100 point test contains a total of 20 questions. The multiple choice questions are worth 3 points each and the short response answer questions are worth 8 pints each. Write a system of linear equations that represents this

  2. Algebra 2

    1.) Write a system of equations that has NO solution. 2.) If you wanted to eliminate the y variables in the system of equations below, what would you multiply the first and second equations by?( Do not solve the equation) 2x-3y=8

  3. Math(Factorial)

    A women student is to answer 10 out of 13 questions on a test. Find the number of choices where she must answer: (a) the first two questions; (b) the first or second questions but not both; (c) exactly 3 out of the first 5

  4. algebra

    2a+3b-4c=7, a-b+2c=6 a) find an ordered triple of numbers (a,b,c) that satisfies both equations b) can you find a second ordered triple that satisfies both equations c) solve for b in terms of a, and solve for c in terms of a. how

You can view more similar questions or ask a new question.