Large trees and ferns need water to survive. This suggests that the biome was once very different from the desert it is today. #globalwarming lol
Answer:
In order to obtain some materials and remove waste, what process is used by prokaryotes? Diffusion. The changes in the concentration help the movement of the particles and waste across the plasma membrane. This process is known as diffusion, where molecules move from high to low concentration.
Explanation:
Answer:
A. 21 rad/s
B. 200.5 rpm
C. 26.46 rad/s2
D. 0.299 Hz
Explanation:
Parameters given are:
Tangential velocity,v = 1.26m/s
Diameter (outer edge) = 0.120m
Outer edge radius, ro = 0.12/2
= 0.06m
A. Calculate Angular velocity
Angular velocity, w = v/r
= v/ro
= 1.26/0.06 = 21 rad/s
In rpm,
2pi/60 rad/s = 1 rpm
1 rad/s = 60/2pi rpm
Sp, 21 rad/s = 60 * 21/2pi rpm
= 200.5 rpm
B. Calculate the inner edge radius, ri given w = 500 rpm
Converting rpm to rad/s,
= 2pi/60 * 500 rad/s
= 52.34 rad/s
ri = v/w
= 1.26/ 52.36
= 0.024m
C. Calculating centripetal acceleration, a from the outer edge, ro
a = v2/r = w2r
= (1.26)2/0.06
= 26.46 rad/s
D. Calculate the frequency, f of the outer edge angular velocity, w = 21 rad/s
f = 2pi/w
= 2pi/21
= 0.299 Hz (or per second)
Answer:
Crystal Size and Rock Texture
Explanation:
Extrusive rocks are also known as volcanic rocks. Igneous rocks are classified according to their texture and mineral or chemical content. The texture of the rock is determined by the rate of cooling. The slower the rock cools, the larger the crystals form.
Each sp2<span> hybrid orbital on a carbon atom contains one electron. Figure 9.21 shows how the four C</span><span>H </span><span> bonds are formed by overlap of </span>sp2<span> hybrid orbitals on C with the 1</span>s<span> orbitals on each H atom. We use eight electrons to form these four electron-pair bonds. The C</span><span>C </span><span> bond is formed by the overlap of two </span>sp2<span> hybrid orbitals, one on each carbon atom, and requires two more electrons. The C</span>2H4<span> molecule has a total of 12 valence electrons, 10 of which form the one C</span>C and the four C<span>H </span><span> bonds.</span>
