Answer:
Clouds of gas and dust as well as new star formation are typically seen in Spiral galaxy
Explanation:
The ingredients for star formation are gas and dust, a spiral galaxy is a group of stars that are together as a consequence of the gravitational pull between them and, as the name said it, has a spiral shape.
They are composed for a central bulge, a disk (in which a spiral arms structure can be seen), gas and dust. Because of the presence of gas and dust, star formation is possible.
Answer:
v1 = 377.98 m/s
Explanation:
m = 5 Kg
v0 = 176 m/s
v0x = v0*Cos 32° = 176 m/s*Cos 32° = 149.256 m/s
m1 = 2 Kg
m2 = 3 Kg
t = 4.1 s
g = 9.81 m/s²
Before the explosion
pix = m*v0x = 5 Kg*149.256 m/s = 746.282 Kgm/s
piy = 0
After the explosion
pfx = m1*v1x
knowing that pix = pfx
we have
746.282 = 2*v1x
v1x = 373.14 m/s
v2y = g*t
pfy = m1*v1y + m2*v2y
pfy = 2*v1y + 3*(9.81*4.1)
pfy = 2*v1y + 120.663
knowing that piy = pfy = 0
we have
0 = 2*v1y + 120.663
v1y = 60.33 m/s
Finally we apply
v1 = √(v1x² + v1y²)
v1 = √(373.14² + 60.33²)
v1 = 377.98 m/s
Answer
Correct Answer is a.(spikes)
Explanation:
option a is correct because here serves, rotation and spikes all the three words are using as object.
The volleyball team practiced their serves, rotations, and spikes.
option b cannot be correct because here spiking is used as a verb and sentence(The volleyball team practiced their serves, ) is in past indefinite form and we cant use word spiking here because this form of verb is used in continues form of sentences only.
Option c cannot be correct as because in this option ""spikes the ball" spikes is used as a verb which can be used in present indefinite form of sentence only but here sentence is in past indefinite form.
Again option d cannot be correct because in this option ""spikes over the net" spikes is used as a verb which can be used in present indefinite form of sentence only but here sentence is in past indefinite form.
