Sunday
May 26, 2013

# Posts by chloe

Total # Posts: 301

6th
what is the sum of 3142,6328, and 4743 to the nearest thousand?

maths
a car travels at a speed of 35mph how long would it take a car to travel 7miles

physcis!
A car accelerates from rest at 4.9 m/s2. How much time does it need to attain a speed of 6 m/s?

A car accelerates from rest at 4.9 m/s2. How much time does it need to attain a speed of 6 m/s?

Physics
Two ants race across a table 65 cm long. One travels at 5.76 cm/s and the other at 3.99999 cm/s. When the first one crosses the finish line, how far behind is the second one?

Calculus
The graph A(x) has points (-3,0), (0,-2), (1,0) and (2,3). If C(x) is defined by C(x)=A(2x+3), then what is the domain and range of C and how would the graph of C(x) look like? Also, is there any way to find what the actual equation of A(x) is with the points listed above? Tha...

Physics
An object, that is 3.25 mm high is placed 16 cm in front of a lens. The image produced by this lens appears 6.0 cm behind the object, as the figure shows. (a) What is the focal length of this lens and what type of lens is it? (b) What is the height of the image? Is it real or ...

Physics
An object 0.600 cm tall is placed 16.5 cm to the left of the vertex of a concave mirror having a radius of curvature of 22.0 cm. (a) Draw a principle-ray diagram showing the formation of the image. (b) Calculate the position, size, orientation (erect or inverted), and nature (...

Physics
A speedboat, starting from rest, moves along a straight line away from the dock. The boat has a constant acceleration of +3.00 m/s2. A siren on the dock is producing a 755 Hz tone. Assuming that the air temperature is 20.0oC, what is the frequency of the sound heard by a pers...

sciencs
what is denser, 1 grams of gold or 1 kilograms of copper? why?

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