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ehidna [41]
3 years ago
5

In 1986, several robotic spacecrafts were sent into space to study the Halley's Comet. Which of these statements best explains w

hy humans should continue to send robotic spacecrafts into space?
A. They absorb harmful radiations in space.
B. They help change weather conditions on Earth.
C. They help discard some myths about objects in space.
D. They destroy meteors and comets which might strike Earth.
Physics
1 answer:
maks197457 [2]3 years ago
4 0
No spacecraft has been built yet that was able to absorb harmful
radiations in space, change weather conditions on Earth, or destroy
meteors and comets which might strike Earth.

We should continue to send robotic spacecrafts into space
because they help discard some myths about objects in space. 
In other words, they help us learn things that we never knew before.

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The acceleration of Karla's I IPhone being thrown from Mr. Higley's classroom at 0 m/s will be 29.16 m/s²

<h3>What is acceleration?</h3>

The rate of velocity change concerning time is known as acceleration. According to Newton's second law, the eventual effect of all forces applied to a body is its acceleration.

The pace at which a body's velocity varies is represented by acceleration, which is a vector quantity.

The given data in the problem is given by ;

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v is the final speed= 35  m/sec

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The formula for acceleration is;

\rm a=\frac{v-u}{t} \\\\ a= \frac{35-0}{1.2} \\\\ a= 29.16 \ m./s^2

Hence, the acceleration of Karla's iPhone being thrown from Mr. Higley's classroom at 0 m/s will be 29.16 m/s²

To learn more about acceleration, refer to the link;

brainly.com/question/2437624#SPJ2

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