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Physics

2 answers:

4vir4ik [10]3 years ago

6 0

Answer:

C. POSITIVE

(Sorry if wrong)

gavmur [86]3 years ago

4 0

Answer:

C positive

Explanation:

It keeps moving in a positive way over and over

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You throw a bowling ball down an alley with speed v_0v 0 , and initially it slides without rolling. After a little while fri

telo118 [61]

Answer:

final speed after pure rolling is given as $R\omega = \frac{5}{7}v_0$

Explanation:

As we know that point of contact at ground is taken as reference then there is no external torque about this point on the ball

So we can use angular momentum conservation about this point

$L_i = L_f$

$L_i = mv_0R$

$L_f = \frac{7}{5}mR^2\omega$

so we have

$mv_0R = \frac{7}{5}mR^2\omega$

$R\omega = \frac{5}{7}v_0$

So final speed after pure rolling is given as $R\omega = \frac{5}{7}v_0$

4 0

3 years ago

Gauss's law is usualy written as :

snow_tiger [21]

Answer:

(a) the net charge inside the closed surface.

Explanation:

In Gauss' Law, Qencl refers to the net charge inside the Gaussian surface. This surface is usually taken as a symmetric geometric surface, but this is merely for simplicity. Gauss' Law holds for any closed surface. Inside this surface there can be insulators as well as conductors. Regardless of the geometry or the materials inside, Qencl refers to the net charge inside the closed surface. The charge outside the surface is irrelevant for Gauss' Law, therefore all the charge in the physical system is not included in Gauss' Law.

4 0

3 years ago

The distance between the centers of the wheels of a motorcycle is 156 cm. The center of mass of the motorcycle, including the ri

Drupady [299]

Answer:

a = 9.86 m/s²

Explanation:

given,

distance between the centers of wheel = 156 cm

center of mass of motorcycle including rider = 77.5 cm

horizontal acceleration of motor cycle = ?

now,