I should preface this by the fact that I have yet to actually learn anything in class because today was hand out the syllabus day but I don't feel like waiting and the homework is online. I got most of them but these have given me problems. You don't need to solve them for me I'd prefer you didn't but point me in the right direction.(adsbygoogle = window.adsbygoogle || []).push({});

The mass of the planet Saturn is 95.26 times the mass of the Earth. Saturn is very nearly spherical, with a mean radius of 5.79×107 m. Calculate the mean density of Saturn in gm/cm^3. Data: Mass Earth = 5.97 x 1024 kg.

Let V = 5.0×10-8 c (In physics, c almost always represents the speed of light).

Find 1 - (1 - V2/c2)1/2.

A swimmer heads directly across a river, swimming at 2.0 m/s relative to still water. He arrives at a point 44.0 m downstream from the point directly across the river, which is 74.0 m wide. In what direction should the swimmer head so as to arrive at the point directly opposite his starting point? Express your answer in terms of the angle, in degrees, with respect to a line drawn directly across the river.

The radius of the orbit of Pluto is about 6460.0000km. Imagine a long rope that circles the sun at just this radius. How much additional rope must be added in order to have the radius of the circle increase by just 1mm. Give your answer in units of km.

An automobile is moving along a highway in a way that its position, as a function of time is given by X=A+Bt+Ct^2, where A=4.00m, B=-9.00m/s and C=6.00m/s^2. The automobile starts at t=0s.

What is the magnitude of the distance from the start, in meters, when the automobile is at rest?

Any help would be much appreciated

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# Homework Help: Help with several problems

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