03/02/17

What is the frequency in hertz of an event that occurs every 7.1 seconds
I need help wit this questio asap
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03/01/17

How do I find the two unkown magnitudes given two equations? Physics help.
0=Ft1cos125+Ft2cos70+0 0=Ft1cos35+Ft2cos20-3430 Ft3=3430 N   What are Ft1 and Ft2? Answer: Ft1=1431 N, Ft2=2402 N How do I get these values?
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03/01/17

word problem
The height in feet, h, reached by a projectile after t seconds is given by the function:h(t) = -16t^2 + 110t + 5When will the projectile reach a height of 122 feet on its way down?
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03/01/17

How are high-level nuclear waste and low-level nuclear waste the same?
What are the similarities? Like what do they mean?
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03/01/17

Physics - Help requested.
Assume that a satellite orbits earth 230,000 m above its surface. given that the mass of earth is 5,97 x 10^24 kg, and the radius of earth is 6.38 x 10^6 m what is the satellite's period?
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03/01/17

U.s. president franklin D. Roosevelt began a program of government spending called the new deal in an effort to end the great depression of the 1930s
I want to know if the question i asked is true or false 
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03/01/17

Physics - hw
A child's baton is 0.50 m long, and each end has a mass of 0.15 kg. What is the moment of inertia of the baton if the baton is twirled about the midpoint between the ends? Assume that the rod has a... more
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03/01/17

Physics - Need help
a test pilot whose mass is 85 kg is strapped into a large centrifuge machine for training. The machine spins rapidly to stimulate increased gravitational forces on the body. If the machine spins... more
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03/01/17

If 30g of CuSO4 • 5H20 are present, how many moles of CuSo4 • 5H2O are present?
I need help with this chemistry question please? Silly me didn't copy fast enough when my instructor was working on the problem on the board & was also focusing how he was solving it as well. I... more
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03/01/17

a) The force pushing the lawn mower horizontally b) The force pushing down the lawn mower
This is the original question     A person is pushing on the handle of a lawn mower with a force of 400N acting on 30° clockwise below the horizontal. What is the magnitude of the component of... more
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02/28/17

I have tried this deriative many times, but it isnt coming out right. Having the trig functions in the functions trip me up but I thought I did this right.
G(x)=(sin2 (x) + 8)/ (cos2 (x) + 8) I took the derivative of by doing 3 chain rules, and yet I keep getting a different answer, and they all turn up wrong. the 8's cancel for being a constant... more
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02/28/17

Need to know which of these are the correct answer s
a. whole number  b.  Rational number  c.  Natural number  d.  Integer  e. rational numbers    
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02/28/17

How do i graph 4x - 8y = -16 ?
I am given an equation of 4x - 8y = -16, and all I know is that I need to find the x and y coordinates to be able to graph it, but im not sure how. This is 8th grade pre-algebra. 
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02/28/17

Solve please log equation
3(2^x+4)=350
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02/28/17

Half Life word problem
A 64g sample of Germanium-66 is left undisturbed for 12.5 hours. At the end of the period, only 2.0g remain. What is the half- life of this material. Please use the formula A= A0 (1/2) (t/H)
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02/28/17

physics - help
 Michelle swings a 0.009-kg rubber stopper around her head. The rubber stopper is tied to a string that Michelle holds at 0.72 m with a force of 21. N. If she lets go of the string, what is the... more
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02/27/17

A certain species of fish require 1.5 cubic feet of water per fish to maintain a healthy environment. Find the maximum number of fish you could put in a tank
A certain species of fish require 1.5 cubic feet of water per fish to maintain a healthy environment. Find the maximum number of fish you could put in a tank measuring 6 feet by 5 feet by 5 feet.
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02/27/17

what prevented the mongol conquest to japan?
 what prevented the mongolian conquest to japan 
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02/27/17

can i have this one with steps please?
Identify the X and the y intercepts y=X^2-2
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02/27/17

Hitler convinced fascists to adopt?
Based on Civics (government)
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02/27/17

The half-life of the radioisotope carbon-14 is 5730 years. How much C-14 will be left after 3 half-lives, if the initial amount is 100.0 g?
I need help with this research question.
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02/27/17

If two different lines are parallel to a third line, the two lines are not parallel to each other.
is it true or false that if two different lines are parallel to a third line, the two lines are not parallel to each other?  
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02/27/17

A 2.95-kg object is moving in a plane, with its x and y coordinates given by x = 3t2 − 2 and y = 4t3 + 3
A 2.95-kg object is moving in a plane, with its x and y coordinates given by x = 3t2 − 2 and y = 4t3 + 3, where x and y are in meters and t is in seconds. Find the magnitude of the net force acting... more
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02/27/17

Chemistry help
An irregular shape mineral has a density of 1.196 g/cm3. What is the mass of this mineral when placed in a graduated cylinder containing 200.mL of water, water rises to 208.6 mL? 
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02/26/17

A science question. Has to do with the Doppler effect and the frequency of light.
Light with a frequency of 6.1*10^14 Hz is measured from a star. This type of star is known to produce light with a frequency of 6.0*10^14 Hz. How fast is the star moving away from toward Earth?
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