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makkiz [27]
3 years ago
9

the batter swings the bat and makes contact with the ball. when this occurs, the kinetic energy of the bat is transferred to the

ball. ______ is NOT a possible form of energy that the kinetic energy could be transformed to. A) chemical B) heat C) kinetic D) sound
Physics
2 answers:
Ghella [55]3 years ago
7 0
It will possibly be A) chemical b/c it can make a sound like when the bar hits the ball it makes a sound correct?! and also it created heat especially when it hits the ball. and when the ball MOVES and the bar HITS it creates kinetic energy, but when you hit the ball it doesn’t create a new substance.
castortr0y [4]3 years ago
3 0

Answer:

a

Explanation:

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Orbital velocity is the average speed ofa planet moving through space in itsorbit around the sun. Which of thefollowing planets
liubo4ka [24]

Answer:

Mercury

Explanation:

The force of gravity is equal to the mass times the centripetal acceleration:

Fg = m v² / r

Also, the force of gravity is defined by Newton's law of universal gravitation, which states the Fg = mMG / r², where m and M are the masses of the objects, G is the universal constant of gravitation, and r is the distance between the objects.

mMG / r² = m v²/ r

MG / r = v²

This means the square of the orbital velocity is equal to the mass of the sun times the universal constant of gravity divided by the orbital radius.  So whichever planet has the smallest orbital radius will have the highest orbital velocity.  Of the four options, that would be Mercury.

7 0
3 years ago
If we find v=Al, where l is a length and v is a speed, what are the SI units for A?
swat32

Answer:

I think the SI unit of A is m^2/s

3 0
3 years ago
Read 2 more answers
When you don't have enough room to stop, you may _______ to avoid what's in front of you.
xxMikexx [17]
Do you have the options? I would say swerve?

7 0
3 years ago
Read 2 more answers
A sound wave has a frequency of 645 Hz in air
rodikova [14]

Answer:

-14.2^{\circ}C

Explanation:

First of all, we can find the speed of the sound wave, which is given by:

v=f \lambda

where

f = 645 Hz is the frequency

\lambda=0.5 m is the wavelength

Substituting,

v=(645 Hz)(0.5 m)=322.5 m/s

Now we can find the temperature of the air by using the following relationship:

v = 331 m/s + 0.6 T

where T is the temperature in Celsius degrees. Since we know v = 322.5 m/s, we can re-arrange the formula to find the temperature:

T=\frac{v-331 m/s}{0.6}=\frac{322.5 m/s-331 m/s}{0.6}=-14.2^{\circ}C

7 0
3 years ago
A ball is kicked at 30.0 m/s at an angle of 20.0°. Beneath the tilted columns calculate the vertical and horizontal components.
RSB [31]

The velocities at time <em>t</em> are

• Horizontal:

<em>v</em> = (30.0 m/s) cos(20.0º)

• Vertical:

<em>v</em> = (30.0 m/s) sin(20.0º) - <em>g</em> <em>t</em>

(where <em>g</em> = 9.80 m/s² is the magnitude of the acceleration due to gravity)

If you only want the <u>initial</u> velocities, they are

• Horizontal:

<em>v</em> = (30.0 m/s) cos(20.0º) ≈ 28.2 m/s

• Vertical:

<em>v</em> = (30.0 m/s) sin(20.0º) ≈ 10.3 m/s

(just set <em>t</em> = 0)

As far as starting equations go, you can derive everything from the definition for average acceleration:

<em>a</em> = ∆<em>v</em> / ∆<em>t</em> = (final <em>v</em> - initial <em>v</em>) / <em>t</em>

→   <em>v</em> = <em>u</em> + <em>a</em> <em>t</em>

(here, <em>u</em> stands in for "initial <em>v</em>" and <em>v</em> is simply velocity at time <em>t</em> )

There is no acceleration in the horizontal direction, while the ball is essentially in free-fall in the vertical direction.

6 0
3 years ago
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