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SSSSS [86.1K]
3 years ago
9

A stationary object has no forces acting on it. True False

Physics
2 answers:
riadik2000 [5.3K]3 years ago
8 0
True i took the test                  
Ierofanga [76]3 years ago
3 0
I think its true cuz the object isnt moving its just in one place there for no force would have to be put onto it unless its a nail
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A 2300 kg sailboat is moving west at 5.5 m/s when an eastward wind
pogonyaev

The boat is initially at equilibrium since it seems to start off at a constant speed of 5.5 m/s. If the wind applies a force of 950 N, then it is applying an acceleration <em>a</em> of

950 N = (2300 kg) <em>a</em>

<em>a</em> = (950 N) / (2300 kg)

<em>a</em> ≈ 0.413 m/s²

Take east to be positive and west to be negative, so that the boat has an initial velocity of -5.5 m/s. Then after 11.5 s, the boat will attain a velocity of

<em>v</em> = -5.5 m/s + <em>a</em> (11.5 s)

<em>v</em> = -0.75 m/s

which means the wind slows the boat down to a velocity of 0.75 m/s westward.

5 0
3 years ago
Modern atomic theory states that atoms are neutral. how is this neutrality achieved in atoms? having more neutrons than protons
kolezko [41]
The answer is having fewer neutrons than protons or electrons.
8 0
3 years ago
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What is the wavelength of an earthquake wave if it has a speed of 3 km/s and a frequency of 6 Hz?
disa [49]
Wavelength = c/f.
Wavelength =0.5km
8 0
2 years ago
WILL GIVE BRAINLIEST!
Ulleksa [173]

Answer:0kgm/s

Explanation:

Momentum before collision=momentum after collision

Since the momentum of the two blocks have positive sign, it means they are moving in thesame direction

Therefore we use the formula

Momentum (A)+momentum (B)=Momentum (A)+momentum (B)

25+35=60+momentum (B)

60=60+momentum (B)

Momentum (B)=60-60

Momentum (B)=0kgm/s

6 0
3 years ago
Under what conditions can an object have forces acting on it, but its motion does not change ?
Lady_Fox [76]

Answer: An object at rest has zero velocity - and (in the absence of an unbalanced force) will remain with a zero velocity. Such an object will not change its state of motion.

Explanation: I hoped that helped!!

7 0
2 years ago
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