3 years ago

Air resistance allow objects to develop full acceleration due to gravity true or false

Physics

1 answer:

Aloiza [94]3 years ago

3 0

False. because the object cannot freefall due to resistance, so it cannot develop full acceleration.

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A particle with a charge of −1.24×10−8c is moving with instantaneous velocity v⃗ = (4.19×104m/s)i^ + (−3.85×104m/s)j^ . part a w

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Answer:

F = 0i (in the x-direction), 0j (in the y-direction),-8.59*10^-4 N k (In the z-direction)

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$F=qv (cross) B\\$

Now we can perform the cross product between v and B

$v(cross)B = \left[\begin{array}{cc}4.19*10^{4} &-3.85*10^{4}\\1.8&0&\en[tex]v(cross)B = 69300 (kg*m/(s^2*C))\\$ d{array}\right][/tex]

Now multiply by Q (charge) to get the force

$F = -1.24*10^-8 * 69300\\F = -8.59*10^-4N$

F = -8.59*10^-4 N k

F = 0i, 0j, (-8.59*10^-4)k

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3 years ago

Read 2 more answers

Light travels through a vacuum at a speed of 3 x 10 m/s. What is the speed of

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v = c / n (n = 1 for air)

v = c / 1.33 = 3 * 10E8 m/s / 1.33 = 2.25 * 10E8 m/s

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