3 years ago

PLEASE HELP URGENT! this is a homework that is due today but I forgot to do it please help those 2 questions!

Physics

1 answer:

mario62 [17]3 years ago

3 0

Answer:

balanced unbalanced balanced balanced

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The two conducting rails in the drawing are tilted upwards so they each make an angle of 30.0° with respect to the ground. The v

dolphi86 [110]

Answer:

The current flows through the rod is 14.9 A.

Explanation:

Given that,

Magnetic field = 0.045 T

Mass of aluminum rod = 0.19 kg

Length = 1.6 m

Angle = 30.0°

We need to calculate the force

Using resolving force

$F\cos\theta=mg\sin\theta$

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$F=0.19\times9.8\times\tan30$

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Using formula of magnetic force

$F=iLB$

$i=\dfrac{F}{LB}$

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$i=14.9\ A$

Hence, The current flows through the rod is 14.9 A.

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3 years ago

You toss a bowling ball straight up into the air with a speed of 2.1 m/s. How long does it take the bowling ball to reach its hi

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Time taken by the bowling ball to reach its highest point= 0.214 s

initial velocity= Vi=2.1 m/s

Final velocity= Vf=0 as the velocity at the highest point is zero.

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using the kinematic equation Vf= Vi + at

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v = √490.5

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