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jekas [21]
3 years ago
9

An airplane accelerates from a speed of 88m/s to a speed of 132 m/s during a 15 second time interval. How far did the airplane t

ravel during the time interval?
Physics
1 answer:
Gelneren [198K]3 years ago
6 0

Answer:

1650\:\mathrm{m}

Explanation:

We can use the following kinematics equations to solve this problem:

v_f=v_i+at,\\{v_f}^2={v_i}^2+2a\Delta x.

Using the first one to solve for acceleration:

132=88+a(15),\\15a=44,\\a=\frac{44}{15}=2.9\bar{3}\:\mathrm{m/s^2}.

Now we can use the second equation to solve for the distance travelled by the airplane:

132^2=88^2+2\cdot2.9\bar{3}\cdot \Delta x,\\\Delta x= \frac{9680}{2\cdot2.9\bar{3}},\\\Delta x =\fbox{$ 1650\:\mathrm{m}$}(three significant figures).

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You watch a distant lady driving nails into her front porch at a regular rate of 1 stroke per second. You hear the sound of the
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λ = 1360 m

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What must be the magnitude of a uniform electric field if it is to have the same energy density as that possessed by a 0.50 T ma
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