10/09/17
A patient rehabilitating a knee injury performs knee extension exercises wearing a 15 N weight boot.
A patient rehabilitating a knee injury performs knee extension exercises wearing a 15 N weight boot. Calculate the amount of torque generated at the knee by the weight boot, given a distance of 0.4...
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10/09/17
Find the equation of the line pass through the point (-1,-5) with
a. Horizontal
b. Vertical
The polynomial of degree 3, P(x), has a root of multiplicity 2 at x=1 and a root of mutiplicity 1 at x=-4. The Y intercept is y=-2.8. find the formula for P(x)
The polynomial of degree 3, P(x), has a root of multiplicity 2 at x=1 and a root of mutiplicity 1 at x=-4. The Y intercept is y=-2.8. find the formula for P(x)
10/09/17
a stone drop from a bridge, it takes .25 second to pass 9ft mast of boat, how ar is the bridge from the the top of the mast
please solve
10/09/17
a student runs 30 meters west. then she turns 40 degrees toward the south and runs for 120 meters. find the resultant displacement.
include 3 significant figures and correct units please.
10/09/17
Form a polynomial whose zeros and degree are given
Zeros: 9, multiplicity 1; 4, multiplicity, 2; degree 3
10/09/17
My Math Question
To Calculate the height of a tree, Marie measures the angle of elevation from a point A to be 34. She then walks 10 feet directly towards the tree, and finds the angle of elevation from the new...
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10/09/17
What was the main reason that Athens and Sparta fought the Peloponnesian War?
I want to know what the main reason sparta and athens fought in the peloponnesian war
10/09/17
I need help with this physics problem. Please. I got vector B to be <3e-20,-9e-20,-2.76e-19>. However, it's wrong.
I calculated the electric field to be <6.95e-5 ,6.95e-5, 6.95e-5> at location < 2 ✕ 10-3, 2 ✕ 10-3, 2 ✕ 10-3 > m, due to the proton.
At a particular instant a proton is at the...
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10/09/17
The path of a volleyball stuck by a player can be modeled by the function: [T/8] h(d) = -2d*2 +12d +0.1
Determine the max height achieved by the volleyball? How far did the ball travel from the player before it hit the ground? If the volleyball net stands exactly 11m high is located at a point 3.5 m...
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10/09/17
how many seconds of freefall will the skydiver have before deploying their parachute
a skydiver is jumping from a plane at an altitude of 13000 ft. the equation h(t)=-16t²+13000 represents height h after t seconds in order to land safely the skydiver must deploy the parachute at an...
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10/09/17
Find a cubic polynomial with real coefficients
Find a cubic polynomial with real coefficients having roots x=-2 and x=1+4i Assume a lead coefficient of 1.
10/09/17
A polynomial P of degree 3 with integer coefficients
A polynomial P of degree 3 with integer coefficients has zeroes x=-2, x=6 and x=-8 Use the factor theorem to write the polynomial in factored form
10/08/17
Find an nth degree polynomial function satisfying the given conditions
n=3
3 and 4i are zeros
f(2)= -60
10/08/17
Perform the following operation and simplify:
Perform the following operation and simplify:(8w-9)2
Rate of Change
Find the average rate of change of f(x)=3/x+1 on the interval [x,x+h]. Simplify your answer.
10/08/17
a man starts walking north at 4ft/s from point p. five minutes later a women starts walking south at 5ft/s from a point 500 ft due east of p. at what rate are t
a man starts walking north at 4ft/s from point p. five minutes later a women starts walking south at 5ft/s from a point 500 ft due east of p. at what rate are the people moving apart 15 mins after...
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Complex number to exponential form
How do you put the complex number -2+i into a form of e^{ix} ?
with i = sqrt(-1)
x= angle between complex number and the real axis
10/08/17
Vertical physics problem
I feel like this should be easy and I'm making this harder than it should be.
A baseball player throws a baseball into the air at a height of 3.00 m above the release point, the ball is moving...
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10/07/17
Find the inflection point
For some tasks, a sigmoid learning curve is used to model proficiency. Suppose the percent proficiency is given by the model P(t)=(100)/(1+100e^-.6t), where t is days of practice.
Find the...
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