A missle is fired vertically into the air. The distance (in metres) above the ground as a function of time is given by the formula s = 100 + 500t – 4.9t2. When will the missile return to earth?

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Posted by Admin in Wednesday, February 2nd 2011 3 comments already

A missle is fired vertically into the air. The distance (in metres) above the ground as a function of time is given by the formula s = 100 + 500t – 4.9t2. When will the missile return to earth?

2

Feb

Feb

Posted by Admin in Wednesday, February 2nd 2011 4 comments already

The angles of A and B are 45 degrees with C being 90 degrees. The distance from C to the hypotenuse (c) is 22″. I need the length of a and b of this triangle. Please include the formula that you used.

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Feb

Posted by Admin in Wednesday, February 2nd 2011 1 comment so far

Using the distance formula, but instead of number I have letters, so I’m having a hard time using the distance formula? Help please!??

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Feb

Posted by Admin in Wednesday, February 2nd 2011 1 comment so far

JUMPING FROM THE VEGAS WORLD HOTEL AND CASINO. THE DISTANCE D IN FEET TRAVELED BY A FREEFALLING OBJECT IN T SECONDS IS GIVEN BY THE FORMULA D=16T^2. HOW LONG DID THE STUNTMAN FREEFALL LAST?

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Feb

Posted by Admin in Wednesday, February 2nd 2011 4 comments already

I need to find a formula that will allow me to calculate the temperature at any distance from the sun

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Posted by Admin in Wednesday, February 2nd 2011 1 comment so far

If a galaxy has a radial velocity of 8000 km/sec and the Hubble constant is 70 km/sec/Mpc, what is the distance to this galaxy? What’s the formula for this question?

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Feb

Posted by Admin in Wednesday, February 2nd 2011 1 comment so far

Hello, can someone tell me the formula I would need to calculate the size an objects shadow. I’m trying to figure out the size of the moons shadow on the earth during an eclipse. Don’t tell me the answer, just the formula. I would imagine the diameter of the moon and distance from earth is [...]

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Posted by Admin in Wednesday, February 2nd 2011 3 comments already

pre cal prob

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Posted by Admin in Wednesday, February 2nd 2011 2 comments already

if an object has known mass (1500 kg) , travelling at a constant (10 m\s) speed , I can calculate that the car has 75000 joules in kinetic energy(.1/2 *mass*velocity sq.) how do I find stopping distance? Brakes possess maximum force 3750 Newtons . How do i rearrange this formula ? It is driving me [...]

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Posted by Admin in Wednesday, February 2nd 2011 9 comments already

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