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4 years ago

Objects with unlike charges what each other

Physics

2 answers:

DerKrebs [107]4 years ago

6 0

The answer is attract. Hope it helps! :)

Shkiper50 [21]4 years ago

4 0

They attract to each other.

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Why does one side of the Moon’s surface always remain much colder than the other side?

Triss [41]

Answer:

Because the only one side of the moon faces the sun at any given point this causes on side to be perpetually more hot in temperature.

6 0

3 years ago

2.Which explains why many modern electronic devices use integrated circuits instead of vacuum tubes?

klemol [59]

<span>1. Modern devices use integrated circuits instead of vacuum tubes because integrated circuits occupy less space than vacuum tubes, are more efficient, consumes. The following explains why many modern electronic devices use integrated circuits instead of vacuum tubes:</span>

They are much smaller and more efficient than vacuum tubes.

<span>2. The equation that is used to calculate the amount of electrical energy is the following: E=P x tE is the energy transferred in kilowatt-hours, kWhP is the power in kilowatts, kW</span>

t is time in hours, h

3. The term voltage describes the work done per unit of charge against a static electric field to move the test charge between two points. It is <span>an electromotive force and also referred to as potential difference. Voltage is expressed in volts. (V). from the given explanations the following is true:</span>

<span>It is the difference in electrical potential energy between two places in an electric field.</span>

8 0

3 years ago

Read 2 more answers

An undiscovered planet, many lightyears from Earth, has one moon in a periodic orbit. This moon takes time TT on average to comp

gulaghasi [49]

Answer:

$a_{cp}=\frac{2\pi^2 d}{T^2}$

Explanation:

The equation for centripetal acceleration is

$a_{cp}=\frac{v^2}{r}$

Where v is the tangential velocity and r the radius of the orbit.

To calculate v we notice that the moon travels the circumference of the orbit $C=2\pi r$ in a time T, so we have

$v=\frac{C}{T} =\frac{2\pi r}{T}$

Putting all together:

$a_{cp}=\frac{v^2}{r}=\frac{(\frac{2\pi r}{T})^2}{r}=\frac{4\pi^2 r}{T^2}$

And since the radius r is d/2, where d is the diameter of the moon's orbit, we can write the formula asked:

$a_{cp}=\frac{4\pi^2 r}{T^2}=\frac{4\pi^2 d}{2T^2}=\frac{2\pi^2 d}{T^2}$

8 0

3 years ago

How does a centripetal force cause circular motion? It acts at a right angle to the object's motion and causes the object to con

poizon [28]

Answer:

Centripetal force comes from the Latin, centrum = centre and petere=to seek. It acts perpendicular to the object path, towards the center of the curve. This results in change of the direction of the object's velocity but not in change of object's speed.

So only the first option is correct: It acts at a right angle to the object's motion and causes the object to constantly change direction.

Explanation:

7 0

4 years ago

Read 2 more answers

(a) What is the acceleration due to gravity on the surface of the Moon?

wolverine [178]

<h2>a) Acceleration due to gravity on the surface of the Moon is 1.64 m/s²</h2><h2>b) Acceleration due to gravity on the surface of the Mars is 3.75 m/s²</h2>

Explanation:

a) Acceleration due to gravity

$g=\frac{GM}{r^2}$

G = 6.67 × 10⁻¹¹ m² kg⁻¹ s⁻²

Mass of moon, M = 7.35 × 10²² kg

Radius of moon, r = 1.73 × 10⁶ m

Substituting

$g=\frac{6.67\times 10^{-11}\times 7.35\times 10^{22}}{(1.73\times 10^{6})^2}=1.64m/s^2$

Acceleration due to gravity on the surface of the Moon is 1.64 m/s²

b) Acceleration due to gravity

$g=\frac{GM}{r^2}$

G = 6.67 × 10⁻¹¹ m² kg⁻¹ s⁻²

Mass of Mars, M = 6.418 × 10²³ kg

Radius of Mars, r = 3.38 × 10⁶ m

Substituting

$g=\frac{6.67\times 10^{-11}\times 6.418\times 10^{23}}{(3.38\times 10^{6})^2}=3.75m/s^2$

Acceleration due to gravity on the surface of the Mars is 3.75 m/s²

7 0

3 years ago