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Anit [1.1K]
3 years ago
9

We cannot see the milky way galaxy without binocular or telescopes. true or false?

Physics
1 answer:
DerKrebs [107]3 years ago
3 0

Answer:

I'm pretty sure it's false

Explanation:

.

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If the sum of all the forces acting on a car is zero, then the speed of the car?
Taya2010 [7]

Answer: If all forces acting on a car are zero, than the cars speed is zero since there are no forces to push or pull the car :)

Explanation:

7 0
2 years ago
Which statement best explains why an object
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D, Mercury as a weaker gravitational pull! Due to mercury being farther from the sun and it being a smaller planet it has a weaker pull
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A 5 kg ball of clay is moving with a speed of 25 m/s directly toward a 10 kg ball of clay which is at rest. The two clay balls c
Dafna11 [192]

Answer:

8.3m/s

Explanation:

Given parameters:

mass of clay ball  = 5kg

Speed of clay ball  = 25m/s

mass of clay ball at rest  = 10kg

speed of clay ball at rest  = 0m/s

Unknown:

Velocity after collision  = ?

Solution:

 Since the balls stick together, this is an inelastic collision:

   m1v1 + m2v2  = v(m1 + m2)

  5(25) + 10(0)  =  v (5 + 10)

         125 = 15v

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7 0
2 years ago
All of the halogens are____to humans.
Ymorist [56]

Answer:

b bc they are a dangerous threat to humans health

5 0
1 year ago
Which expression allows you to determine the mechanical advantage of an inclined plane?
Leya [2.2K]

Answer:

(C) length / height of the plane

Explanation:

The mechanical advantage of an inclined plane can be determined using different variables. In this case, the geometry of the setup is relevant. The advantage is proportional  to the length of the plane, and inversely proportional to the height: it is the ratio (length) / (height) of the plane. For example, given a desired, fixed height, a long inclined plane gives you a bigger mechanical advantage than a short inclined plane. In this example, pushing an object up the long plane will require a smaller force, than it would on the short plane.

Strictly speaking, (D) would also "allow you to determine the mechanical advantage" because you could simply invert the ratio listed under (D). However, (C) is the best, direct, answer.

4 0
3 years ago
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