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3 years ago

14

When a pitcher throws a softball to a catcher, the vibration of the atoms that make up the softball is ____________ energy, whil

e the motion of the ball toward the catcher is ___________ energy.?

1 answer:

Molodets [167]3 years ago

5 0

The vibration is thermal energy ("heat" energy which every object possesses).
The second one is kinetic energy ("motion" energy of a massive object)

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3. What conclusion can you make about the electric field strength between two parallel plates? Explain your answer referencing P

KIM [24]

Answer:

From the relation above we can conclude that the as the distance between the two plate increases the electric field strength decreases

Explanation:

I cannot find any attached photo, but we can proceed anyways theoretically.

The electric field strength (E) at any point in an electric field is the force experienced by a unit positive charge (Q) at that point

i.e

$E=\frac{F}{Q}$

But the force F

$F= \frac{kQ1Q2}{r^2}$

But the electric field intensity due to a point charge Q at a distance r meters away is given by

$E= \frac{\frac{kQ1Q2}{r^2}}{Q} \\\\\E= \frac{Q1}{4\pi er^2 }$

<em>From the relation above we can conclude that the as the distance between the two plate increases the electric field strength decreases</em>

6 0

3 years ago

Speed is a vector quantity. Do you agree? Justify your answer.

abruzzese [7]

Answer:

<h2>No </h2>

Explanation:

because speed is the rate of change in the distance travelled by an object

so, speed is scalar quantity.

<h2>Mark me as brainlist</h2>

8 0

3 years ago

Read 2 more answers

What is string theory? Need answer in own word

Makovka662 [10]

Answer:

When point particals are replaced by string like particals

Explanation:

4 0

3 years ago

A particle executes simple harmonic motion with an amplitude of 3.00 cm. At what position does its speed equal half of is maximu

Mrac [35]

Answer:

x=±0.026m

Explanation:

In simple harmonic motion the maximum value of the magnitude of velocity

$v_{max}=wA=\sqrt{\frac{k}{m} }A$

The speed as a function of position for simple harmonic oscillator is given by

$v=w\sqrt{A^{2}-x^{2}$

where A is amplitude of motion

Given data

Amplitude A=3 cm =0.03 m

v=(1/2)Vmax

To find

We have asked to find position x does its speed equal half of is maximum speed

Solution

The speed of the particle the maximum speed as:

$v=\frac{V_{max} }{2}\\ w\sqrt{A^{2}-x^{2} }=\frac{wA}{2}\\ A^{2}-x^{2}=\frac{A^{2} }{4}\\ x^{2}=A^{2}- \frac{A^{2} }{4}\\ x^{2}=\frac{3A^{2}}{4} \\x=\sqrt{\frac{3A^{2}}{4}}$

x=±(√3(0.03)/2)

x=±0.026m

5 0

4 years ago

The Coriolis effect causes prevailing winds in the continental United States to blow toward the ________.

jonny [76]

I think its B because it never has a the turn over to any other side except for the west.

5 0

3 years ago