# 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

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?

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 ?

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

5. ## chemistry

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

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

7. ## Physics

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

8. ## CHM 300

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

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

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

11. ## science

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

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

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

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

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

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

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

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

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 ?

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?

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:

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.

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

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

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)

1. ## physics

posted on October 8, 2017
2. ## biology

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!!!

posted on July 27, 2015
8. ## science

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

posted on March 11, 2015
17. ## math

yes this right

posted on February 26, 2015

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

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