3 years ago

Pleaseee help as soon as possible!!

Physics

1 answer:

Tatiana [17]3 years ago

5 0

Answer:

its right 2000 meters ask your teacher

Explanation:

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An object moving north with an initial velocity of 14m/s accelerates 5m/s squared. What is the final velocity of the object?

OLEGan [10]

The final velocity of the object is 16m\s.
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3 years ago

Which other team sport basketball is the most like.<br> hi

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4 years ago

dem82 [27]

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3 years ago

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You are riding in an elevator that is accelerating upward. Suppose you stand on a scale. The reading on the scale is __________.

olchik [2.2K]

Answer:

greater than your true weight

Explanation:

When going up in an elevator the acceleration of the elevator is added to the acceleration due to gravity. This will increase the reading on the scale.

The expression of the resultant weight will be

$N=m(a+g)$

where,

m = Mass of the person

g = Acceleration due to gravity = 9.81 m/s²

a = Acceleration of the elevator.

Hence, the reading on the scale is <u>greater than your true weight.</u>

5 0

3 years ago

Air having a pressure of 40 psig and a volume of 8 cu ft expands isothermally to a pressure of 10 psig. Find the external work p

DerKrebs [107]

Answer:

357.6 lb-ft

Explanation:

V = Volume = 8 ft³

dP = Change in pressure = (40-10) = 30 psig

Work done is given by

$W=VdP\\\Rightarrow W=8\times (40-10)\\\Rightarrow W=240\ psig.ft^3$

$30\ psig=44.7\ psi\\\Rightarrow 1\ psi=\dfrac{30}{44.7}$

So, converting to ft-lb

$\dfrac{240}{\dfrac{30}{44.7}}=357.6\ lb-ft$

The external work performed during the expansion is 357.6 lb-ft

7 0

4 years ago