Saturday
October 25, 2014

Posts by applebottom


Total # Posts: 28

Health
yeah we get on here for answers not to do more work
August 23, 2014

Calculus
i need help finding area under curve of:2y=sqrt(3x),y=4, and 2y+1x=4
March 5, 2011

math
i need help finding area under curve of:2y=sqrt(3x),y=4, and 2y+1x=4
March 5, 2011

Physics
Four particles in the xy plane have the following masses and coordinates: 1 kg at (4 m, 4 m), 2 kg at (−3 m, 5 m), 3 kg at (5 m, −2 m) and 4 kg at (−2 m, −4 m). Find the total moment of inertia about: a) the x-axis: kg*m2 b) the y-axis: kg*m2 b) the z-...
December 14, 2010

physics
A child of mass 40 kg stands beside a circular platform of mass 90 kg and radius 1.6 m spinning at 2.8 rad/s. Treat the platform as a disk. The child steps on the rim. a) What is the new angular speed; b) She then walks to the center and stay there. What is the angular ...
December 11, 2010

physics
A circular disk of mass 0.2 kg and radius 24 cm, initially not rotating, slips down a thin spindle onto a turntable (disk) of mass 1.7 kg and the same radius, rotating freely at 3.4 rad/s. a) Find the new angular velocity of the combination; rad/s b) The change in the kinetic ...
December 11, 2010

physics
A turntable with a moment of inertia of 0.014 kg*m2 rotates feely at 2.7 rad/s. A circular disk of mass 500 g and diameter 22 cm, and initially not rotating, slips down a spindle and lands on the turntable. a) Find the new angular speed. rad/s b) what is the change in kinetic...
December 11, 2010

Physics
At t = 0 s a flywheel is rotating at 25 rpm. A motor gives it a constant acceleration of 0.8 rad/s2 until it reaches 100 rpm. The motor is then disconnected. How many revolutions are completed at t = 23 s?
December 10, 2010

Physics
whhere did u get this part from: 40*(x-50), the 40 is the mass of the ruler but what about the 50?
December 8, 2010

Physics
A uniform meter stick of mass 40 g is used to suspend three objects as follows: 20 g at 0.13 m, 25 g at 0.41 m and 40 g at 0.64 m. Where could you place your finger to balance the stick in the horizontal position?
December 8, 2010

Physics
A ladder of mass M and length 2 m rests against a frictionless wall at an angle of 47 degrees to the horizontal. The coefficient of static friction between the ladder and the floor is 0.5. What is the maximum distance along the ladder a person of mass 13M can climb before the ...
December 8, 2010

PHYSICS
(1 pt) An aricraft carrier has a mass of 8.9 x10^7kg and can cruise at 55 km/h. a) What is the work required to stop it? J b) What constant force could stop it in 6 km? N a) If only half of the work required to stop it is done, what is its final speed? km/h
November 21, 2010

Math please help!
Find the equation of the tangent line to the curve: 2(x^2+y^2)^2 = 25(x^2-y^2) at the point ( 3 , 1 ). The equation of this tangent line can be written in the form y = mx+b
November 7, 2010

Math
Find the equation of the tangent line to the curve: 2(x^2+y^2)^2 = 25(x^2-y^2) at the point ( 3 , 1 ). The equation of this tangent line can be written in the form y = mx+b
November 7, 2010

Physics
A circular off ramp has a radius of 74 m and a posted speed limit of 50km/h. If the road is horizontal, what is the minimum coefficient of friction needed?
November 6, 2010

math
Solve the equation in the interval [0,2pi]. List all solutions tan^2(x)+0.8 tan(x)-3.84 = 0
November 5, 2010

Physics
A 55 kg person stands on a scale in an elevator that accelerates downward at 3 m/s2. a) What is the scale reading? N b) What is the person's weight? N
October 31, 2010

Physics
can u explain with steps, i dont understand. Thanks
October 31, 2010

Physics
A particle of mass 2.7kg has an initial velocity of 5i+5j m/s. It is acted on by a force 2i-4.5j N for 2s. What is its final velocity?
October 31, 2010

Physics
A hot-air balloon has a total mass of 720 kg. It accelerates downwards (towards the ground) at 2.7m/s^2 even though an upwards lift force in acting on it. Find a:Find the lift force acting on the balloon B)What must be the total mass that needs to be thrown overboard if the ...
October 30, 2010

physics
doesnt say, but i already solved for time,3.78s
October 9, 2010

physics
A ball is thrown horizontally at 15 m/s from a clifftop 70 m above the sea level. Find: a) the time to land; b) the angle at which it hits the water; ° below the horizontal c) the speed at which it hits the water. m/s
October 9, 2010

pHYSICS
A ball is thrown horizontally at 15 m/s from a clifftop 70 m above the sea level. Find: a) the time to land; s b) the angle at which it hits the water; ° below the horizontal c) the speed at which it hits the water. m/s
October 9, 2010

Physics
A ball is thrown horizontally at 15 m/s from a clifftop 70 m above the sea level. Find: a) the time to land; s b) the angle at which it hits the water; ° below the horizontal c) the speed at which it hits the water. m/s
October 8, 2010

Physics
A plane dives at 37° to the horizontal and releases a package at an altitude of 380m. If the load is in the air for 4s, find: a) the speed of the plane when it released the package; b) the horizontal distance traveled by the package after it is released.
October 8, 2010

physics
how do u solve v?
October 8, 2010

physics
A basketball is thrown at 45° to the horizontal. The hoop is located 4.5m away horizontally at a height of 1m above the point of release. What is the required initial speed?
October 8, 2010

statistics
An ecologist uses the line, based on 13 colonies, to predict how many birds will join another colony, to which 54% of the adults from the previous year return. What is the prediction? Give your answer to two decimal places, and use the regression line exactly as it appears in ...
April 15, 2010

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