This when a satellite orbits in an oval-shaped path around a central object.

A violin string has a standard length of 32.8 cm. It sounds the musical note A (440 Hz) when played without fingering. How far f

Rus_ich [418]

Answer:

The finger has to be placed at 5.25cm

Explanation:

The steps and appropriate formula in musical instrument is as shown in the attachment.

5 0

3 years ago

1. An electrically charged atom ___________

dmitriy555 [2]

Answer:

Is called an Ion

Explanation:

7 0

3 years ago

Read 2 more answers

If a bowling ball is moving with acceleration of 15 m/s2 and has a mass of 10kg what is the force of the ball as it knocks down

Lina20 [59]

Answer:

150 newtons

Explanation:

F = ma

force = mass * acceleration

the mass is 10 kg, and the accelration is 15 m/s^2

10*15 = 150

the force unit that matches with meters/second and kg is newtons

F =ma

150 newtons = 10 kg * 15 m/s^2

6 0

3 years ago

A ball of mass 0.5kg is thrown at a man of mass 59.5kg standing on roller skates, at a speed of 5 m/s. It is stopped by the man.

Akimi4 [234]

The final velocity of the man standing on roller skates with the ball caught, after it is thrown at him at a speed of 5 m/s, is 0.042 m/s.

The velocity of the man with the ball can be calculated by conservation of linear momentum:

$p_{i} = p_{f}$

$m_{b}v_{b_{i}} + m_{m}v_{m_{i}} = m_{b}v_{b_{f}} + m_{m}v_{m_{f}}$

Where:

$m_{b}$ : is the mass of the ball = 0.5 kg

$m_{m}$ : is the mass of the man = 59.5 kg

$v_{b_{i}}$ : is the initial velocity of the ball = 5 m/s

$v_{m_{i}}$ : is the initial velocity if the man = 0 (he is standing still)

$v_{b_{f}}$ : is the final velocity of the ball =?

$v_{m_{f}}$ : is the final velocity of the man =?

Since the man catches the ball, his final velocity is the same that the final ball's velocity, so:

$m_{b}v_{b_{i}} + m_{m}v_{m_{i}} = v_{f}(m_{b} + m_{m})$

$v_{f} = \frac{m_{b}v_{b_{i}} + m_{m}v_{m_{i}}}{m_{b} + m_{m}} = \frac{0.5 kg*5 m/s + 0}{0.5 kg + 59.5 kg} = 0.042 m/s$

Therefore, the velocity of the man with the ball is 0.042 m/s.

Learn more about the conservation of linear momentum here:

brainly.com/question/2141713?referrer=searchResults

brainly.com/question/14283213?referrer=searchResults

I hope it helps you!

4 0

2 years ago

1 point You throw a ball up in the air with a velocity of 30 m/s. How high does it go?

choli [55]

Answer:

Explanation:

2as=vf^2-Vi^2

vf=30 m/s

vi= 0 m/s

a=g=9.8 m/s^2

s=vf^2-Vi^2/2a

s=(30)²-(0)²/2*9.8

s=900-0/19.6

s=45.9=46 m

4 0

3 years ago