Since speed (v) is in ft/sec, let's convert our diameters from inches to feet:
1) 5/8in = 0.625in
0.625in × 1ft/12in = 0.0521ft
2) 0.25in × 1ft/12in = 0.021ft
Equation:
new velocity coming out of the hose then is
44 ft/sec
1). c ... 2). d ... 3). a ... 4). d ... 5). c ... 6). a
7). b-mass ... c-m/s ... d-Newton's 1st ... e-Newton's 2nd
Answer:
Complete the following table. Be sure to include units in your answer.
Explanation:
all you have to do is mautiply them
Answer:
c. the hole in the plate and the opening in the ring get larger.
Explanation:
The hole in the plate and the ring both of them get enlarged.
The thermal expansion is very much similar to the optical expansion of the shadow of an object.
<em>The change in length of an object is given by the relation:</em>
where:
l = original length of the object
coefficient of linear expansion
ΔT = change in temperature
Explanation:
Recession velocity of a galaxy is related to the distance at which the galaxy is located. This relationship is given by the hubble constant, as follows:
Hubble constant is aproximate 
and 1 megaparsec (Mpc) is 3.26*10^6 light years. Rewriting for D:
For galaxy A:
For galaxy B:
