Lian

Most popular questions and responses by Lian
1. Physics

A 1200 lb sleigh is pulled along a horizontal surface at uniform speed by means of a rope that makes an angle of 30 degrees above the horizontal. If the tension in the rope is 100 lb., what is the coefficient of friction?

2. math

Use the digits 4,5,6,7 and 8 only once.Write the greatest number possible with 8 in the ten thousands place

3. geometry

The corners of the square, 2m. sides, are cut off to form a regular octagon. What is the length of the side of the resulting octagon?

4. geometry

The corners of the square, 2m. sides, are cut off to form a regular octagon. What is the length of the side of the resulting octagon?

5. geometry

The corners of the square, 2m. sides, are cut off to form a regular octagon. What is the length of the side of the resulting octagon?

6. geometry

The corners of the square, 2m. sides, are cut off to form a regular octagon. What is the length of the side of the resulting octagon?

7. CIT

find the dimension of the largest triangle that can be inscribe in the ellipse 9x^2+16y^2=144. The sides of the rectangle are parallel to axes of the ellipse

8. geometry

The corners of the square, 2m. sides, are cut off to form a regular octagon. What is the length of the side of the resulting octagon?

9. Psychology

How can attitude be distinguished from a passing thought about something or someone?

10. Calculus

A vessel is in the shape of an inverted cone. The radius of the top is 5cm and the height is 8cm. Water is poured into a height of xcm. Show that if the volume of the water is Vcm^3,then V=(25/192)*pi*x^3. (The volume of a cone is given by the formula

11. geometry

The corners of the square, 2m. sides, are cut off to form a regular octagon. What is the length of the side of the resulting octagon?

12. Physics

while at the shooting range, jonathan shoots a bullet traveling horizontally with speed of 35 m/s. the bullet hits a board, perpendicular to the surface, passes through it and emerges on the other side with speed of 21 m/s. if the board is 4.00cm thick,

13. math

after7rounds is a knockout chess tournament,the winner was announced.How many contestants were there have been in the tournament?

14. geometry

The corners of the square, 2m. sides, are cut off to form a regular octagon. What is the length of the side of the resulting octagon?

15. geometry

The corners of the square, 2m. sides, are cut off to form a regular octagon. What is the length of the side of the resulting octagon?

16. math

400 is a three-digit square number that makes a one-digit square number when its digits are reversed.How many three-digit squares are there which make three -digit squares when their digits are reversed

17. geometry

The corners of the square, 2m. sides, are cut off to form a regular octagon. What is the length of the side of the resulting octagon?

18. math

In triangle XYZ,x=20.4,y=16.4,z=23.1,what is angle Z

it was the light of his career

posted on May 23, 2019
2. math

you are wrong , is the first

posted on June 21, 2017
3. Physics

7707j

posted on November 10, 2016
4. physics

Yes you are all losers

posted on November 7, 2016