11/28/16

What is the mass of 0.441 mol of ferrocene (FeC10H10)? Answer in units of g.
can you explain how you got it please? Chemistry is not my subject! thanks for the help
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11/28/16

How much do 3.83 × 1022 molecules of water weigh?
The answer in units of g.  (if you can, can you explain/showing steps)
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11/27/16

limx>0 (1-cos2ax)/(1-cos2bx)
limx->0 (1-cos2ax)/(1-cos2bx)
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11/27/16

limx->0 (cosx-cos11x)/(cos3x-cos7x)
limx->0 (cosx-cos11x)/(cos3x-cos7x)
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11/27/16

find the limit
lim      sin(n2) x-oo    n2+4
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11/27/16

Determine how far a ball of 2kg will travel if thrown at 45 degrees from rest at 5m/s
I need to know the distance the ball will travel for a special work for physics class and just to learn in general.
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11/27/16

what is the rate of change of the linear function,y=-1/7x+4
thanks in advance
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11/27/16

PHYSCS HELP
A bead slides without friction around a loop-the-loop as shown in the figure below. The bead is released from a height h = 3.00R.     http://www.webassign.net/pse/p8-15.gif   (a) What is the... more
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Cal

11/27/16

Cant solve this derivative
Hi, I need help finding this derivative :    y=-(x^2+9) / (x^2-9)^2
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11/26/16

solving projectile problems
 A ball is launch with the horizontal velocity of 10.0 m/s from a 20.0 m tall cliff.  how long will it be in the air? And how far will it land from the base of the cliff? 
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11/26/16

physics homework help
A ball is dropped from a vertical height of 45.0 m. How long will it be in the air? 
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11/26/16

Newton's Laws 7
An object with mass m1 = 5.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass m2 = 9.0 kg, as... more
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11/26/16

Momentum And Collisions 8
Two football players collide head-on in midair while trying to catch a thrown football. The first player is 96.5 kg and has an initial velocity of 6.25 m/s, while the second player is 120 kg and... more
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11/26/16

helpppppppp physics question
A potential energy function for a two-dimensional force is of the form U = 3 x5y - 3 x. Find the force that acts at the point (x, y). (Use x and y as appropriate.)   __________i+___________j
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11/26/16

physics question!
A single conservative force acting on a particle varies as vector F = (-Ax + Bx6)i hat N, where A and B are constants and x is in meters. Accurately round coefficients to three significant... more
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11/26/16

help with this physics question
A 110 g bullet is fired from a rifle having a barrel 0.580 m long. Assuming the origin is placed where the bullet begins to move, the force (in newtons) exerted by the expanding gas on the bullet... more
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11/26/16

A light ray incident normally on a plane mirror suffer deviation of angle ? Give this answer with the book refrence name
A light ray incident normally on a plane mirror suffer deviation of angle ? Give this answer with the book refrence name
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11/26/16

Pressure Volume diagram doubt
In P-V graph of an ideal gas, there is a straight line with negative slope. How can we calculate the maximum temperature from the graph? Note:The graph is not a rectangular hyperbola but a... more
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11/24/16

Hopital rule
lim as x tends to 0 ( xlnx)    I know that in order to do hopital rule it has to be in quotient rule. How do I turn xlnx into a fraction ?
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11/24/16

proove a -√x = 1/(a + √x )
Surd based problm in genral   I had got 6 -√35 =   1/(1+√35
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11/23/16

help me pleaseeee
Jennifer drove 525 miles to see her friend. On the return trip, she drove 8 mph faster, so she made the return trip in 2 hour less time. What was her speed on the way to friend's home
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11/23/16

how to interpret word problems into quadratic formula
The square of a positive integer minus twice its consecutive integer is equal to 22. find the integers. by using the quadratic formula 
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11/23/16

(1+y/m)^m=x
i need to make m the subject of the equation 
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11/23/16

fuel + oxygen->
please help this is for my science class
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11/23/16

With how much force are each of the two kids pulling their two ropes?
A Dad is playing (a modified) version of tug-of-war with his two kids. His kids (Alice and Bob), are pulling, each with their own rope, to the right while the father is pulling directly to the... more
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