03/20/18

diffraction limited angular resolution of light
A space based telescope has a 2.6 m objective, what is the diffraction limited angular resolution of light ( 633 nm)? Report you answer to three decimal points and include the word arcsec as your... more
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03/20/18

P=2 (L+W) is the formula for the perimeter P of a rectangle in terms of its length L and width W. Solve this formula for L in terms of P and W.
the answer is L=(p-2w)/2
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03/20/18

A steel forging is at 725 degrees Celsius . If it cools exponentially at the rate of 1.45% per minute, how much will its temperature drop in 1.5 hours?
Hi, i would like to know the steps to solve this problem.
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03/20/18

find two consegutive intgers whose sum is 45
show all 5 steps    1,)label the unknowns 2,)set up the equaton 3.)solve equation  4.)find the valuse fro the unknows  5.)check    
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03/20/18

solve A=P sqrd(1+R) for r
need to find r   i know its r= a2-p2/p2     but i dont know the steps
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03/19/18

what is the angular velocity
a weather vane initially at rest has a moment of inertia of 0.108 kg times m squared about its axis of rotation. a 48.0g piece of clay is thrown at the vane and sticks to it at a point 21.5 cm from... more
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03/19/18

Why couldn't the Britains and the thirteen colonies get along?
Why couldn't the britains and the thirteen colonies get along?
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03/19/18

What is in the US Constitution?
This questionnaire is an assignment of the government class. Please post anything comes up to your mind when you hear the constitution. 
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100

03/19/18

What caused people to expect the British to defeat the colonists at sea
Britain's allies or Britain's wealth
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03/19/18

other countries besides the U.S have attacked Puerto rico
in vocab, we have this packet that we have to answer, but I don't know the answer to this answer, so I hope that's the info you were looking for.
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03/19/18

Is it possible to draw an isosceles triangle with one 80 degree angle
Draw a isosceles triangle with one 80 degree angle.Is it possible
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03/19/18

Energy question
Determine W (or fuel energy) required to launch a satellite of mass m at rest from a launching pad placed at the surface earth, to a circular orbit where the radius of the orbit is r = 5 R where R... more
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03/19/18

How much work must be done on a 1,000-kg car to increase its speed from 1 m/s to 2 m/s?
 apex
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03/19/18

The diameter of a circle is 8.7 feet. What is the circle's circumference in terms of π?
Can you please help me solve this
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03/18/18

what is the magnitude of the force needed to accelerate a object at a rate of 100m/s per second
what is the magnitude of the force needed to accelerate a object at a rate of 100 m/s per second.
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03/18/18

Find xyz in the equation of x^3y^2z=5^3 and yz^2=5^9
I don’t have any details to my question . Thank you 
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03/18/18

The sum of two numbers is 18. The difference between three times the lesser number and the greater number is 10.
so confused, help please!
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03/18/18

y = 8x + 15 is linear or nonlinear
Which of the following best describes the equation below?y = 8x + 15 A. neither linear nor nonlinear B. both linear and nonlinear C. nonlinear D. linear
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03/18/18

Write the equation in standard form using integers. Y=-4/5 x-6
Y=-4/5 x-6
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03/18/18

product of all constants k such that the quadratic x^2+kx+15 can be factored in the form (x+a)(x+b), where a and b are integers
product of all constants k such that the quadratic x^2+kx+15 can be factored in the form (x+a)(x+b), where a and b are integers
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03/17/18

slope-intercept
Write an equation of the line with the following properties. Write the equation in slope-intercept form.perpendicular to the line y = 7 and passing through (−6, 3)
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03/17/18

If an object is propelled upward from a height of s feet at an initial velocity of V feet per second, the. It’s height h after t seconds is given by equation
H= -16t^+vt +s, where h is in feet if the object is propelled from a height of 12 feet with an initial velocity of 96 feet per secon, it’s height h is given by the equation h= -16t^+96t+12 after... more
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03/17/18

Stuck On This Physics Problem
An ion accelerated through a potential difference of 60.00 V has its potential energy decreased by potential energy of 1.92*10-17 J. Calculate the charge on the ion.   I got 3.2*10-19 as my... more
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03/17/18

Motion in two dimension
Three balls are sequentially thrown at the same instant from top of a building,at the same speed Ball 1 is thrown vertically upwards ball 2 is thrown vertically downward and ball 3 is thrown... more
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03/16/18

Word problem about MPH! Help :0
A man drives for a while at 45mph. realizing that he is running late, he increases his speed to 60 mph and completes his 405-mile trip in 8 hours. How long does he drive 45mph?   I cant get it..
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