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Rachel

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Questions9
  • Physics Help Please?

    Discuss what you understand by Angular Momentum. Use the example of a skater  to illustrate the Conservation of Angular Momentum and its implications.

    Physics2 months ago
  • Physics Concept Question!?

    Discuss giving examples on what you understand by Rate of Change of Momentum. How did Newton use this concept to define force? Pretty please include an illustration as well thank you!

    1 AnswerPhysics2 months ago
  • Physics Particle in Motion Help?

    I need some help with this multiple choice question please. 

    A particle in motion has a velocity given by v=2i+3j and an acceleration a=-1.2i+1.6j. What is the position after 10 seconds?

    a. -40i+110j

    b. -36i+115j

    c. -0.48i+4.6j

    d. -12i+48j

    I am not sure what I am solving for, please include a formula that I could use. Thank you kindly.

    2 AnswersPhysics3 months ago
  • PHYSICS QUESTION!! Velocity and Acceleration?

    Discuss the motion of a particle that has POSITIVE velocity and NEGATIVE acceleration. 

    I need help with an example preferably something I can draw out!

    Thank you

    2 AnswersPhysics3 months ago
  • Physics Help!!?

    The distance (x) traveled by an object moving with a constant acceleration a for a time t is given by the relation:

        

    (a) Write the equation in the form y = mx + b and identify m and b. What is the independent variable and what is the dependent variable? 

    (b) How will you draw a graph using this relation to obtain a straight line?

    (c) What quantity does the slope of this graph represent? 

    any help would be appreciated as I am lost! Thank you!!

    1 AnswerPhysics3 months ago
  • Chem 2 Help?

    Joyce measured the thickness of a sheet of paper and obtained the value 

    1.2 × 10-3 m. Mark measured the thickness of the same sheet of paper and obtained the value 0.98 × 10-4 m. Calculate the percent difference between these two measurements.

    thank you!!

    Homework Help3 months ago
  • Trig/Math Questions!?

    HELP!!!

    I don't know what I am doing for these two problems. 

    1. You want to buy a triangular lot measuring 1360 feet by 1890 feet by 2470 feet. The price of the land is $2200 per acre. How much does the land cost? (Hint: 1 acre = 43,560 square feet. Round your answer to two decimal places.)

    2. Find the area of the triangle having the indicated angle and sides. (Round your answer to one decimal place.)

    B = 139°, a = 84, c = 39

    Help and steps please :)

    1 AnswerMathematics8 months ago
  • I need help on some Pre-Calc Questions?

    1. Continuously compounded interest

    Initial Investment: $1250

    Annual % rate: 8 1/2%

    Tiem to double: Unknown

    Amount after 10 years: Unknown

    2. Complete the table for the radioactive isotope

    C14

    Half Life: 5715

    Initial Quantity: 9.5g

    Amount after 1000 years: Unknown

    3. The number of bacteria in a culture is increasing according to the law of exponential growth. After 2 hours, there are 200 bacteria, and after 5 hours, there are 1600 bacteria. How many bacteria will there be after 7 hours?

    Any help would be appreciated! I know the equations, but when I plug in the numbers my answers are still incorrect.

    Thank you!!

    1 AnswerMathematics8 months ago
  • Is there anyway I could shrink?

    I'm a girl who is already 5'9 and i'm only 15, I feel so akward in my school because all the other girls are so dainty and cute! Is there anyway I could shrink :P I'd feel alot better about myself if I could!

    3 AnswersOther - Beauty & Style9 years ago
  • Is pro-scoutt a good place for actressess and models?

    i got accepted foor pro-scott but its really expensive ....HELP

    THANKS(:

    2 AnswersPhotography1 decade ago
  • What color will my hair turn if i bleach it ?

    Okay here it goes i have never bleache my black hair and i wanna bleach it im only 13 and i want to know how and what color my hair will turn when i bleach it ? please help me im a wreck and i wanna bleach my hair so badly

    46 AnswersHair1 decade ago