# Posts by Lian

Total # Posts: 23

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?

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

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

math
you are wrong , is the first

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 V=(1/3)*pi*r^2*h)

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, how long does the ...

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

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

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

geometry
i didn't know i posted it 9 times. i always check back the page if my question is answered. hahaha. i keep on refreshing it. lol. THANK YOU SO MUCH!!

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?

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?

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?

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?

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?

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?

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?

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?

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?

Physics
7707j

physics
Yes you are all losers

physics
i do know

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