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Kruka [31]
3 years ago
10

HEY CAN ANYONE ANSWER DIS RQ PLS!!!!!

Physics
2 answers:
____ [38]3 years ago
8 0

Answer:

Hey!

Your first answer is ALL OF THE ABOVE!

Your second answer is YES!

<h2>I HOPE THIS HELPED YOU!</h2>
zalisa [80]3 years ago
5 0

Answer: all of the above and yes

hope thsi helps

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How much does the Earth weigh? Why does the moon appear in the daytime?
ch4aika [34]

Answer:

moon disappear because of the rotation

7 0
3 years ago
A particle moves along the x axis so that its velocity at time t is given by v(t)=
vodomira [7]

Answer:

a = 0.7267 ,  acceleration is positive therefore the speed is increasing  

Explanation:

The definition of acceleration is

         a = dv / dt

they give us the function of speed

         v = - (t-1) sin (t² / 2)

         a = - sin (t²/2) -  (t-1) cos (t²/2)  2t / 2

         a = - sin (t²/2) - t (t-1)  cos (t²/2)

the acceleration for t = 4 s

          a = - sin (4²/2) - 4 (4-1) cos (4²/2)

          a = -sin 8 - 12 cos 8

remember that the angles are in radians

          a = 0.7267

the problem does not indicate the units, but to be correct they must be m/s²

We see that the acceleration is positive therefore the speed is increasing

6 0
2 years ago
What is the kinetic energy of a 0.25kg ball rolling at a speed of 2.5m/s
Lisa [10]

Answer:

Explanation:

Kinetic Energy formula:

KE = \frac{1}{2}mv²

m=mass

v=speed

Given:

m=0.25kg

v=2.5m/s

Plug the values in:

KE = 1/2(0.25kg)(2.5m/s)²

KE = 0.78125 J (Joules)

4 0
2 years ago
Which word is not a good way to describe exercise?
Sveta_85 [38]
Exertion is not a good way to describe exercise but there is also alot more words to describe wrong ways for exercise
6 0
2 years ago
Can someone give me tips to passing AP Physics 1 with a solid A? Like, tips on how to memorize a lot of equations? Thank you!
Anna007 [38]
A good way for me to remember things is to study it, and to write it down! Say you want the formula for speed, I would write the formula multiple times on a piece of paper! 

Here's a video that I haven't actually watched, I just looked it up! It might help you out though: <span>https://www.youtube.com/watch?v=-Wqrw4G79Kc</span>
3 0
2 years ago
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