Which of the following objects is NOT normally used in current space exploration?a.
space shuttles
c.
single use rockets
b.
space stations
d.
space probes
Answers
The last NASA Space Shuttle flight took place in 2013. The
remaining shuttles are decommissioned and now on display in
museums. So no shuttles are involved in today's space missions.
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What kind of data are bar graphs useful for
Course TaskAs I sat under an Oak tree I recognized some similar comparisons to what Isaac Newton saw under his apple tree. I saw three different objects fall to the ground…an acorn, a leaf, and a small stick. I wondered how and why they fell the way they did. The stick fell from the very top of the tree and seemed to almost “slow down” about half way down. The acorn got faster all the way to the ground. Yet the leaf would just float back and forth in a calm rhythm like motion. Furthermore, I could see the moon sitting up in the sky just waiting to peak over the trees at dark. How is it that all objects are apparently affected by the earth’s gravity but they seem to respond differently? If gravity is a force that affects all objects…shouldn’t all objects respond the same? Interesting Phenomenon huh….Can you explain what is happening with each of these four objects (including the moon)?
A strip of land conneted to the shore, but then is eroded away by waves. it a column of land is left behind, it is called a
A bus slows down uniformly from 75.0 km/h to 0 km/h in 21 s. How far does it travel before stopping?
(1) 1 J (3) 100 J
(2) 0.01 J (4) 1000 J
Answers
Answer: Option 1: 1 J
Explanation:
Average mass of an apple is between 60 g to 200 g It is not greater than this.
We can take an average mass, m =130 g
This average mass approximation would not affect the final answer.
The work done in lifting any object is given by:
W = m g h
Where, m is the mass of the object, g is the acceleration due to gravity and h is the height to which the object is lifted.
It is given that, h = 1 m
g = 9.8 m/s²
m = 130 g = 0.13 kg
⇒W =0.13 kg×9.8 m/s²×1 m = 1.3 J ≈ 1 J
Thus, the work done in lifting an apple one meter near Earth’s surface is approximately 1 J
B)5-20s
C) 20-4
D)40-50s
Answers
Answer:
Should be D the correct answer
Explanation:
Answer:
D
Explanation:
because the slope decreases
B. nuclear disintegration.
C. nuclear fusion.
D. nuclear separation.
Answers
Answer:
C. nuclear fusion.
Explanation:
The core of the sun is so hot and there is so much pressure, nuclear fusion takes place: hydrogen is changed to helium. Nuclear fusion creates heat and photons (light). The sun's surface is about 6,000 Kelvin, which is 10,340 degrees Fahrenheit (5,726 degrees Celsius).
Answers
the surrounding gas a lot easier than, say, a hot batch of mud can
rise through the surrounding mud.
Answer: The particles can slide past one another.
Explanation : 'The heat energy moves through the material as the particles tin the material move through the material' .
Answers
Answer:
Avaliar o indivíduo como um todo.
Explanation:
O graduado na capoeira, é uma pessoa que recebe mais respeito pelo grupo. Sendo portanto o objetivo de cada exame interno, ou pelo menos deveria ser em sua vasta maioria avaliar o indivíduo como um todo.
Answers
Explanation: There may be different explanations:
Suppose that Jane's car has a built some sped, and she sees a stoplight. Now she needs to stop the car (decelerating the car)
When she does this, she creates a force that holds the car until it is full stop, but this force is applied only on the car, the purse that is on the passenger seat only feels this force by the friction that the seat does in his surface, but the purse has built some moment because it was inside the car, and the friction force that the seat does may not be enough to also stop the purse. So when Jane stops, the purse keeps moving forward, and then it falls down of the seat.