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iren2701 [21]
3 years ago
13

A horizontal spring with spring constant 290 N/m is compressed by 10 cm and then used to launch a 300 g box across the floor. Th

e coefficient of kinetic friction between the box and the floor is 0.23. What is the box's launch speed?

Physics
1 answer:
Marta_Voda [28]3 years ago
5 0

Answer:

Explanation:

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URGENT
Gemiola [76]

Answer:

5.25 J

Explanation:

W = PE = (f)(x)

PE = 35N*0.15m

PE = 5.25 N*m

1 N*m = 1 J

PE = 5.25 J

7 0
2 years ago
3. Atmospheric pressure is often given in units of millimeters of mercury. This refers to the height of a mercury column above t
gregori [183]

Answer:

101397.16 pa

Explanation:

The pressure recorded will be equal to pgh

Where p = density of mercury = 13.6x10^3 kg/m^ 3

g = acceleration due to gravity 9.81 m/s^2

h = height of mercury in the column = 760 mm = 760x10^-3 m

Pressure = 13.6x10^3 x 9.81 x 760x10^-3 = 101397.16 pa

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3 years ago
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aleksklad [387]
Velocity.  Velocity is physical vector quantity; both magnitude and direction are needed to define it.  Magnitude is this case meaning speed.
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3 years ago
What is the period of a 1.4-m pendulum?
Feliz [49]

Answer:(A)

Explanation: ...

4 0
2 years ago
Which element is not part of the rhetorical triangle designed by Aristotle? speaker credibility audience emotion content logic l
ser-zykov [4K]
The correct answer is this one: "length of address." The element that is not part of Aristotle's rhetorical triangle is the length of the address. The rhetorical triangle of Aristotle are the logos, pathos, and ethos. Logos is the logic, Pathos is the audience emotion, Ethos is the speaker's credibility.
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3 years ago
Read 2 more answers
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