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The answers are: c, d, a

The first and third problems require a bit of algebra.

For the first problem, let H be the height above the top of the window from this the object is dropped. Let t be...

I have not bought one, because I am quite content with the lighter weight, high quality, wide optical zom range and lower cost of non-SLR digitals such as Kodak's latest. However, the website...

An activity series is a list of elements listed in order of their ability (reactivity) to remove hydrogen from water, or displace other elements from hydroxides.

A longer and better explanation...

My son has an inflatable Stearns kayak. It is seaworthy, but slow and it is rather annoying to have the direction of the kayak short back and forth 30 degrees with each paddle stroke. If storability...

There are a couple of mistakes in the previous answer. One is in the algebra and one is in the trig.

Just use the rule that the impulse, (average force) x (time), equals the momentum change. In...

That depends upon fitness and weight, but at a leisurely pace it should take 20 minutes, and at a brisk pace, 16 minutes.

Are these substitution or addition reactions? How can you tell and determine this? What are the products?

Trichloromethane (C H Cl3) + chlorine --> CCL4 and HCl (substitution)
Propene (C3H6) +...

Because of both the tilt of the Earth's axis and the eccentricity of the Earth's elliptical orbit, the sun does not travel through the 360 degrees of sky at a constant rate of 15 degrees per hour....

Repositioning cruises that have North America as a destination usually do not originate in Asia, although some originate in Austraila, New Zealand, Hawaii or the South Seas.

I suggest you contact...

<<A ball with a mass of M is on a frictionless curved track with a radius of R. The track sits atop a table that has height of H. Solve the following in terms of R,g,H, and M.
a) the velocity of the...

<<If you anchor 2 boats in a river so they ride in the current parallel and close to each other, they move together as I they were being sucked or pushed? Why?>>
I assume the boats are not connected...

<<1 An athlete throws the shotput with an initial velocity of 14 m/s at a 40 degree angle from the horizontal. The shotput leaves his hand at a height of 2.2 m above the ground.
a. Determine the x...

I see it was over one year since this question was asked, so I assume you found an answer already.

Before you can use this tax break, the stock must be totally worthless. You should list your...

Your question was :
<<The volume of a sphere is 3500 cm3 + 1.8%.
What are the possible maximum and minimum lengths of the radius?
Calculate the radius and its percentage error.>>

Since V =...