A bat produces a sound at 17,250Hz and wavelength 0.019m. What is<br> the speed of the sound?

a motorcycle begins at rest and accelerates uniformly at 7.9 m/s2. We want to find the time it takes the motorcycle to reach a s

gladu [14]

Answer:

It takes the motorcycle about 12.65 seconds to reach 100mph

Explanation:

6 0

3 years ago

Read 2 more answers

What movement allows us to move our side to side?

mezya [45]

Answer:

Ball-and-socket joints

Explanation:

4 0

3 years ago

Two point charges are fixed on the y axis: a negative point charge q1 = -34 μC at y1 = +0.18 m and a positive point charge q2 ar

In-s [12.5K]

Answer:

Explanation:

Field by negative charge will be more as net force due to both the charges is in positive y - direction.

field by negative charge at origin

= 9 x 10⁹ x 34 x 10⁻⁶ / .18²

= 9.45 x 10⁶ N /C

field by positive charge at origin

= 9 x 10⁹ x Q / .33²

= 82644.63 x 10⁶ Q N /C

Net field

= 9.45 x 10⁶ - 82644.63 x 10⁶ Q

force on charge 8.1 x 10⁻⁶ C

( 9.45 x 10⁶ - 82644.63 x 10⁶ Q ) X 8.1 x 10⁻⁶ = 31

76.545 - 669421.5 Q = 31

669421.5 Q = 45.545

Q = 45.545 / 669421.5

= 68 X 10⁻⁶ C

= 68 μC

7 0

3 years ago

Simple pendulum, is show in several states In case A the mass is travelling back down to the bottom and is in between the bottom

uysha [10]

The angular acceleration is maximum in case C

Explanation:

The motion of the bob in the simple pendulum is a portion of a circular motion. In a circular motion, the angular acceleration is related to the tangential acceleration by

$a=\alpha r$

where

a is the tangential acceleration

$\alpha$ is the angular acceleration

r is the radius (the length of the pendulum)

Moreover for a pendulum, the tangential acceleration is given by the component of the acceleration of gravity in the tangential direction, so

$a=g sin \theta$

where

g is the acceleration of gravity

$\theta$ is the angle of the pendulum with the vertical

So we have

$\alpha = \frac{g sin \theta}{r}$

Since g and r are constant, we see that the angular acceleration is proportional to the angle: the larger the angle, the larger the angular acceleration, and the smaller the angle, the smaller the angular acceleration.

Therefore, the angular acceleration is maximum when the pendulum is at its maximum height, and zero when it is at the lowest position. So, the correct statements are

It is maximum in case C

Learn more about periodic motion:

brainly.com/question/5438962

#LearnwithBrainly

3 0

3 years ago

If Earth were 10.0 times farther away from the Sun than it is now, how many times weaker would the gravitational force between t

choli [55]

If Earth were 10.0 times farther away from the Sun than it is now, 100 times weaker would the gravitational force between the Sun and Earth.

What is Gravitational Force?

According to Newton's universal law of gravitation, The force of attraction between any two bodies is directly proportional to the product of their masses and is inversely proportional to the square of the distance between them.

What causes gravitational force?

Earth's gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body. That's what gives you weight. And if you were on a planet with less mass than Earth, you would weigh less than you do here.

Learn more about gravitational force:

brainly.com/question/862529

#SPJ4

5 0

1 year ago

A bat produces a sound at 17,250Hz and wavelength 0.019m. What is the speed of the sound?