What is the relationship between the current passes through the

1 answer:

8 0

Increasing the number of bulbs in a series circuit decreases the brightness of the bulbs. In a series circuit, the voltage is equally distributed among all of the bulbs. Bulbs in parallel are brighter than bulbs in series. In a parallel circuit the voltage for each bulb is the same as the voltage in the circuit.

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aniked [119]

Answer:

Option C

Explanation:

Centripetal acceleration formula regarding velocity and radius is,

$a_c=\frac{v^2}{r}$

now we know the centripetal acceleration is 9 and the radius is 16 so we plug these values into our formula,

$a_c=\frac{v^2}{r}\\\\9=\frac{v^2}{16} \\\\144=v^2\\\\\sqrt{144}=v \\\\v=12\ m/s$

so velocity is 12 m/s

Now for the angular velocity, the formula of centripetal acceleration regarding angular velocity and radius is,

$a_c=rw^2$

we know the centripetal acceleration is 9 and the radius is 16 so plug these values into the formula,

$a_c=rw^2\\\\9=16w^2\\\\0.5625=w^2\\\\\sqrt{0.5625}=w \\\\0.75\ rad/s=w\\$

so angular velocity is 0.75 rad/s

8 0

3 years ago

An old clock has a spring that must be wound to make the clock hands move. Which statement describes the energy of the spring an

kondaur [170]

D) The spring has potential energy and the hands have kinetic energy.

4 0

3 years ago

Read 2 more answers

Although you can see the pencil, it appears broken in the glass of water. This is because

Likurg_2 [28]

Hello,

Although you can see the pencil, it appears broken in the glass of water. This is because electromagnetic waves travel at different speeds through different media.

Mark brainliest if helped!

8 0

4 years ago

Read 2 more answers

Two identical carts travel at the same speed toward each other, and then a collision occurs. The graphs show the momentum of eac

madam [21]

Explanation :

The interaction between two objects is termed as the collision. The collision can be of two types i.e. elastic collision and inelastic collision.

In this case, two identical carts travel at the same speed toward each other, and then a collision occurs. In an inelastic collision, the momentum before and after the collision remains the same but its kinetic energy gets lost.

After the collision, both the object sticks over each other and moves with one velocity.

Out of the given graph, the graph that shows a perfectly inelastic collision is attached. It shows that after the collision both the carts move with the same velocity.