# Rayan

Most popular questions and responses by Rayan
1. ## physical

an airplane takes off at an angle of 30 to the horizontal. if the component of its velocity along the horizontal is 250 km/h , what is its actual velocity? also find the vertical component.

asked on March 7, 2014
2. ## Physics

an empty rd bottle weighs 60 grams but weighs 120 gram when completely filled with water when the bottle is completely with an unknown liquid it weighs 90 gram what will be the volume of the rd bottle

asked on July 19, 2016
3. ## Physics

What is the mass of the meterstick shown in the figure (Hint: 25% of the meterstick’s mass is to the left of the fulcrum and 75% is to the right)?

asked on April 12, 2017
4. ## Physics

A police car stopped at a set of lights has a speeder pass it at 100 km/h. If the police car can accelerate at 3.6 m/s^2, how long does it take to catch the speeder?

asked on February 4, 2017
5. ## Physics

You are traveling on an airplane. The velocity of the plane with respect to the air is 140 m/s due east. The velocity of the air with respect to the ground is 34 m/s at an angle of 30° west of due north. 1)What is the speed of the plane with respect to

asked on February 14, 2018
6. ## physics

A white billiard ball with mass mw = 0.1 kg is moving with a speed of v = 0.5 m/s making angle 60 degree and collides with a black billiard ball with the same mass mb = 0.1 kg that is initially at rest. The distance between the black ball and the pocket is

asked on November 20, 2014
7. ## chemistry

how to determine the oxalate and copper in K[Cu(C2O4)2].2H2O

asked on May 8, 2013
8. ## biology 2

The digestive, circulatory, respiratory, immune, and excretory systems all work together to maintain homeostasis. Discuss how a minor malfunction in one of these systems could lead to major malfunctions in others. If methods were developed to improve the

asked on October 14, 2013
9. ## Physics 11

A businesswoman is applying a force of 12.0 N [upwards] to carry her briefcase for a horizontal distance of 200.0 m. How much work is she doing on the briefcase?

asked on April 3, 2017
10. ## AP Calculus 12

Please help me with this question: lim __1_-_cosx__ x-0 sinx Thank you!

asked on December 20, 2017
11. ## AP Calculus AB

lim |x-3|/x-3 x-->3^- A) 0 B) -1 C) 1

asked on May 10, 2018
12. ## Chemistry

Consider the reaction below : P4(s) + 5O2(g) P4O10(s) How many grams of phosphorus react with 1.195 x 102 L of oxygen (O2) at STP (standard temperature and pressure) to form tetraphosphorus decaoxide?

asked on February 15, 2018
13. ## AP Calculus AB

Suppose f(x)= x^5 - 10 and let h(x) be the inverse of f. Find h'(22).

asked on February 6, 2018
14. ## Math

How to make "freyer model" of 437?

asked on September 3, 2013
15. ## algebra

Sort these numbers describe your sort rule 5, 10, 16, 19, 24, 37, 40

asked on February 11, 2013
16. ## math 3 grader

Sort these numbers describe your sort rule 5, 10, 16, 19, 24, 37, 40

asked on February 10, 2013
17. ## AP Calculus

Find x. lim (sin(x))^x x-->0

asked on February 26, 2018
18. ## Pre-Calculus 12

Solve using logarithm: 2^(4x+1)=3^x

asked on December 7, 2017
19. ## Chemistry

which compound shows small change in solubility from 0°C to 100°C?

asked on February 13, 2017
20. ## Pre-Calculus 11

What is the entire radial form of -3* cube root of 2? I go cube root of 54 as my answer but it is wrong

asked on July 10, 2016
21. ## Math:Algebra

Maya has 2 times as many apples as Ally if Ally has 87 apples how many apples dose Maya have now? Maya's sister takes some away. Write an algebraic expression that represents the amount of apples they have now?

asked on November 16, 2014
22. ## AP Calculus AB

Hi. Please help me with the following question: lim x-->1 (x)/(ln(x))

asked on May 8, 2018
23. ## Math

Please show me how to factor X^3 + 125

asked on December 20, 2017
24. ## maths

find out 10 pairs of one digit numbers whose product end with the digit 0?

asked on January 2, 2013
1. ## english

Verb is: is, must, learn, make

posted on May 12, 2019
2. ## physics

average speed = (3+0)/2 = 1.5 m/s so t = 8/1.5 = 80/15 = 5.33 seconds sliding to a stop then acceleration a = (0-3)/5.33 = -.5625 m/s^2 so now the physics F = m a -m g (mu) = m (-.5625) mu = .5625/9.81 = .0573

posted on February 14, 2018
3. ## AP Calculus 12

Yes that was the question. Sorry I messed up the structure. Thanks for your help!

posted on December 20, 2017
4. ## Pre-Calculus 12

Thank you!

posted on December 8, 2017
5. ## riddle

Clothes this because when it is dirty is old but when it is has been wash it's become new

posted on April 13, 2017
6. ## Math

oops!

posted on April 3, 2017
7. ## Math

3/8 made it across (1/2)*(3/4)

posted on April 3, 2017
8. ## Physics 11

Thanks!

posted on April 3, 2017
9. ## Physics

why are you multiplying by 1/2

posted on February 4, 2017
10. ## Physics

Why do you multiply by 1/2?

posted on February 4, 2017
11. ## Pre-Calculus 11

I have one more question I tried this question but got the wrong answer... 3-x= √x^2-5 (The square root is over whole x^2-5) My answer was x=2/3

posted on July 10, 2016
12. ## Pre-Calculus 11

isn't negative not supposed to go inside the cube root

posted on July 10, 2016
13. ## math

304

posted on October 24, 2015
14. ## Math:Algebra

(2*87) -l

posted on November 16, 2014
15. ## science grade 9

how do the products of their decomposition compare

posted on May 31, 2011
16. ## science grade 9

why are you so smart

posted on May 31, 2011