3 years ago

. Friction is a rubbing force that ___________ a spinning yo-yo.

Physics

2 answers:

katovenus [111]3 years ago

5 0

Answer:

i think add energy

Explanation:

Advocard [28]3 years ago

3 0

The yo-yo speeds up when you rub it

You might be interested in

The speed of light in water is 2.25 x 108 m/s. What is true about the index of refraction of water? A. It is less than 1. B. It

guajiro [1.7K]

Good afternoon!

We can see that $\mathsf{2.25\times10^8\ \textless \ 3\times10^8 = c}$

The index of refraction can be calculated as:

$\mathsf{n = \dfrac{c}{v}}$

As we noted, $\mathsf{v \ \textless \ c}$ , and therefore:

$\mathsf{\dfrac{v}{v} \ \textless \ \dfrac{c}{v}}\\ \\ \\ \mathsf{\dfrac{c}{v} \ \textgreater \ 1}$

Beccause n = c/v, we have:

n > 1

B - Is more than 1.

4 0

4 years ago

Read 2 more answers

Where in your house do you find radio waves

WITCHER [35]

theyre found from your microwave

4 0

3 years ago

Read 2 more answers

During a circus act, an elderly performer thrills the crowd by catching a cannon ball shot at him. The cannon ball has a mass of

olasank [31]

Answer:

3.416 m/s

Explanation:

Given that:

mass of cannonball $m_A$ = 72.0 kg

mass of performer $m_B$ = 65.0 kg

The horizontal component of the ball initially $\mu_{xA}$ = 6.50 m/s

the final velocity of the combined system v = ????

By applying the linear momentum of conservation:

$m_A \mu_{xA}+m_B \mu_{xB} = (m_A+m_B) v$

$72.0 \ kg \times 6.50 \ m/s+65.0 \ kg \times 0 = (72.0 \ kg+65.0 \ kg) v$

$468 kg m/s + 0 = (137 kg)v$

$v = \dfrac{468\ kg m/s }{137 \ kg}$

v = 3.416 m/s

8 0

3 years ago

What does an element’s molar mass tell you about the element?

olga nikolaevna [1]

Answer:

The molar mass of a compound tells you the mass of one mole of that substance. In other words, it tells you the number of grams per mole of a compound.

7 0

2 years ago

Plss s ss s s s s s s s s

Crazy boy [7]

Answer:

i font know ewan madaling sabihin yan

8 0

3 years ago

Read 2 more answers