Nour

Popular questions and responses by Nour
  1. science

    Amanda is holding a compass and notices that the north pole of the compass points toward the north pole of the Earth. She is confused because she knows from her science classes that the north poles of two magnets will repel each other. How can she explain

    asked on July 27, 2015
  2. physics

    a person throws a ball upward into the air with an initial velocity of 15 m/s calculate a)how high it goes? b)how long the ball is in the air before it comes back ? c)how much time it takes for the ball to reach the maximum height?

    asked on November 19, 2011
  3. physics

    suppose a ball thrown downward with initial velocity 3 m/s instead of being dropped a)what then would be its position after 1s and 2s ? b)what would its speed be after 1 s and 2 s ?

    asked on November 19, 2011
  4. physics

    a car accelerates along a straight road from the rest to 90 km/h in 5 s what is the magnitude of its average acceleration

    asked on November 19, 2011
  5. chemistry

    0.052 moles of a gas has a pressure of 1.32 atm at 127 degree C. Calculate its Volume at STP

    asked on November 8, 2019
  6. math

    The volume of a rectangular prism can be computed using the formula V = lwh. What is the width of a prism that has a volume of 1664 cubic centimeters, a length of 16 centimeters, and a height of 8 centimeters? 11 cm 26 cm 768 cm 13 cm

    asked on February 1, 2019
  7. Physics

    How long it takes a car at 20m/s to come to a stop without friction, obstacles, or breaks ?

    asked on February 19, 2016
  8. CHM 300

    What explains the difference between the propagated uncertainty and the standard deviation?

    asked on August 26, 2015
  9. Science

    The atmospheres of the planets in our solar system differ in their physical compositions. Which planet would you expect to have the thickest atmosphere? a planet with a hot atmosphere and strong gravity a planet with a cold atmosphere and strong gravity a

    asked on July 30, 2015
  10. Science

    The atmospheres of the planets in our solar system differ in their physical compositions. Which planet would you expect to have the thickest atmosphere? a planet with a hot atmosphere and strong gravity a planet with a cold atmosphere and strong gravity a

    asked on July 30, 2015
  11. science

    How are moon observations from space different from moon observations made on Earth? I think there is no deifference.

    asked on July 29, 2015
  12. Science

    Minerals make up most of the rocks on Earth's surface. What are three changes that can cause minerals to form by metamorphism? pressure, temperature, melting temperature, melting, physical makeup temperature, pressure, chemical makeup pressure, physical

    asked on July 28, 2015
  13. science

    Florida was once part of Gondwana, which was a supercontinent that later divided into Africa and South America. Which statement best describes this process? Africa and South America go through cycles of dividing and colliding. The continents have been

    asked on July 28, 2015
  14. science

    Lamont has a dark container. He knows that the container has a mass of 2.0 g when it is empty. He cannot see inside the container. However, he is able to use a balance to determine that the container has a mass of 2.7 g. What can Lamont conclude about the

    asked on July 27, 2015
  15. science

    A boy is riding a skateboard. Why does the skateboard have the ability to do work? because it can slow down because the force applied by the rider acts in the opposite direction as the motion of the skateboard because it can change direction because the

    asked on July 26, 2015
  16. math

    The Ferris wheel at the county fair is 30 feet tall. If a person rides the Ferris wheel around 4 times, how far has he traveled? 60 ft 120 ft 90.8 ft 376.8 ft please answer as soon as possible

    asked on March 12, 2015
  17. Social study

    Which of the following contributed to the decline of the Mughal Empire? Aurangzeb tried to force Hindus to convert to the Muslim faith. Tamerlane invaded. The emperor became a Hindu. Shah Jahan was overcome by grief after his wife's death. please help as

    asked on February 26, 2015
  18. math

    a c-shaped tile (2 in the top row, 1 on the second, 2 on the bottom) can be placed on a number chart so that the sum of the numbers covered is 29. show how this can be done

    asked on June 12, 2012
  19. physics

    suppose you want to design an air bag system that can protect the driver at a speed of 100 km/h if the car hits a brik wall estimate how fast the air bag must inflate to effectively protect the driver ?

    asked on November 19, 2011
  20. physics

    You are the first person to land on the planet Mars where the gravitational acceleration is 3.71 m/s2. You jump with joy with an initial speed of 4.30 m/s. How high do you rise above the martian surface?

    asked on September 13, 2011
  21. physics

    An elevator is initially moving upward at a speed of 12.84 m/s. The elevator experiences a constant downward acceleration of magnitude 3.80 m/s2 for 3.18 s. (a) Find the magnitude and direction of the elevator's final velocity. magnitude: direction:

    asked on September 13, 2011
  22. physics

    You throw a ball straight down from an apartment balcony to the ground below. The ball has an initial velocity of 5.25 m/s, directed downward, and it hits the ground 1.94 s after it is released. Find the height of the balcony.

    asked on September 13, 2011
  23. physics

    The driver of a car is initially moving at a constant speed of 76.0 km/h when a traffic light turns red. If a 0.455 s reaction time is required before the brakes can be applied, what is the distance in meters traveled by the car before it begins to slow

    asked on September 13, 2011
  24. physics

    The brakes are applied to a car traveling on a dry, level highway. A typical value for the magnitude of the car's acceleration is 4.75 m/s2. If the car's initial speed is 32.1 m/s, how long does it take to stop and how far does it travel, starting from the

    asked on September 13, 2011
  25. geometry

    In the following figure given a circle C(o,3) Bp=AB and BA^N = 30 a) Calculate AP,BN and AN b)Calculate AQ and BQ c) Show That M is the mid point of (AP) d)Show that (OM)is perpendicular to (A)

    asked on April 16, 2010
  1. physics

    i need the answer

    posted on October 8, 2017
  2. biology

    The answer is A

    posted on April 23, 2016
  3. chemistry help plz

    Jdjdjdkwkdkkdkrirkfkdr

    posted on February 22, 2016
  4. math

    a can that contains 5 red balls and 3 green ball has a mass of 43g when the can contains3red balls and 5 green balls the mass is37g when the can contains 1 red ball and 1 green ball the mass is 19 g what is the mass of the can and each ball

    posted on December 9, 2015
  5. Science

    I am not sure, i need explantion!

    posted on July 31, 2015
  6. Nat Sci

    Yes you're right.

    posted on July 28, 2015
  7. arabic!!!

    the answer is ج

    posted on July 27, 2015
  8. science

    Your welcome

    posted on July 27, 2015
  9. science

    I submittied the assesemet and it was B

    posted on July 27, 2015
  10. MLA citation

    Yes, d

    posted on July 27, 2015
  11. science

    what do you think?

    posted on July 27, 2015
  12. math

    sorry, i got that from a culcaltuor

    posted on July 27, 2015
  13. math

    1.x=y−3z+2 2.x=−12y−z+1 3.x=−y+12z+−32

    posted on July 26, 2015
  14. Social studies

    i think c

    posted on March 12, 2015
  15. Social studies

    my answer is B or C

    posted on March 12, 2015
  16. 7th grade socal studies

    number 8: Tamerlane invaded.

    posted on March 11, 2015
  17. math

    yes this right

    posted on February 26, 2015
  18. 3rd grade math

    i am on six grade. 2/5 of 150 is 60.10+10=20.20+60=80.150-80=70 half of 70 is 35. The answer is 35.

    posted on February 26, 2015
  19. 7th grade socal studies

    Number 1: treat each other with respect Number 2:silk and procelin Number3:books Number4:the sea around it that all i know.

    posted on February 26, 2015
  20. Social Studies

    What was the outcome of the Constitutional Convention? Trade with Europe was established The Constitution replaced the Articles of Confederation. The Articles of Confederation were amended. Compromises were proposed

    posted on September 16, 2014
  21. math

    lets say you have a 100 number chart you put the c shaped tile on it the numbers that are covered add up to 29 the closest i have got is 28 or 30

    posted on June 13, 2012
  22. 6th grade math

    i really need your help i am very stupid in math i mean i don't know math and i have 2 homeworks please anyone help me the teacher will kill me tomorrow if i didn't submit my homework!!!!!!!!!!!!!!11 guys i begg u anyone help

    posted on April 7, 2012
  23. geometry

    given an equilateral teiangle abc of side 3cm. f is the symmetric of c with respect to b and g is the symmetric of b with respect to c drow the figure

    posted on September 29, 2011
  24. Physics

    1.E1=E2,x^2_7.6x+3.8^2=3.8^2,x_7.6=0,x=7.6,where x is the distance separating q and -q 2.the ratio q\-q is equal to -1

    posted on February 14, 2011