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Wewaii [24]
3 years ago
9

An object moves 2.5 m. This is an example of a _______. Question 3 options: direction distance velocity speed

Physics
2 answers:
Hitman42 [59]3 years ago
5 0
Distance, since distance represents how far something has travelled, which would be in our case 2.5m.
Mila [183]3 years ago
5 0

An object moves 2.5 m. This is an example of a distance

Answer: Option B

<u>Explanation:</u>

In the above example, the direction of the object in which it moved is not given here. Hence Option A is invalid. Velocity and speed are similar as they indicate the distance travelled by the object with respect to time.

The distance travelled by the object with respect to time is not given in the example and so Option C and  D are invalid. So distance is the best option.

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If a cylindrical space station 275 m in diameter is to spin about its central axis, at how many revolutions per minute (rpm) mus
sergij07 [2.7K]

The centripetal acceleration is responsible for the artificial gravity because the acceleration of an object moving in constant circular motion causing from net external force is called centripetal acceleration. It defines to the center or seeking the center.

Given the following:

Cylindrical space station diameter           = 275 meters; 137.5 meters for the radius

Standard gravity                                       = 9.80665 m/s²

 

Using the formula:

w² x r =g

w² = g / r

w² = 9.80665 m/s² / 137.5 m

w² = 9.80665 m/s² / 137.5 m

w² = 0.0713 s²

Then take the roots

w = 0.267 this is radians per second / 2 x (3.1416 which is the pi)

w = 0.0424 rps convert to rpm

w = 0.0424 r/s (1minute / 60 seconds)

w = 7.08 x 10⁻⁴ revolutions per minute

4 0
3 years ago
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TEA [102]

Answer:

is; is not

Explanation:

The​ four-firm concentration ratio for newstands is 17 and for electric lamp makers it is 89. The HHI for newstands is 105 and for electric lamp makers it is 2 comma 850. The newstand market​ is an example of monopolistic competition. The electric lamp market​ is not an example of monopolistic competition

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4 years ago
Tyrone, an 85-kg teenager, runs off the end of a horizontal pier and lands on a free-floating 130-kg raft that was initially at
Ghella [55]

Answer:u=4.04 m/s

Explanation:

Given

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Conserving Momentum as there is no external Force

mu=(M+m)v

85\times u=(85+130)\cdot 1.6

u=\frac{215}{85}\cdot 1.6

u=2.529\cdot 1.6=4.04 m/s  

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3 years ago
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garik1379 [7]
X=1/2 at^2
3.1=1/2 a *0.64
a=9.68
v=at
v=0.8*9.6875=7.75

5 0
3 years ago
Paying off your debts will most likely
g100num [7]
I think the answer is d
4 0
3 years ago
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