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2 years ago

Saturn’s rings are composed of __________.

Physics

2 answers:

sineoko [7]2 years ago

8 0

Answer:

Explanation:

Misha Larkins [42]2 years ago

7 0

Answer:

lots of individual particles of ice and rock

Feedback: Although Saturn's rings appear solid when viewed from Earth, they are actually made of countless icy particles ranging in size from dust grains to small boulders.

Explanation:

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a closed system consitts of a pendumluem that is swinging back and forth. if the pendulums gravitational potential energy decrea

maw [93]

Answer:

Its gravitational potential energy must increase.

Explanation:

<u>Conservation of Mechanical Energy</u>

The total amount of mechanical energy, in a closed system in the absence of dissipative forces like friction or air resistance, remains constant.

This means that energy cannot disappear or appear and that potential energy can become kinetic energy or vice versa.

In a closed system like a pendulum, two types of energies are considered: Gravitational potential (U) and kinetic (K). Thus, the sum of both energies must remain constant in time.

Suppose the pendulum is at a state where U=150 J, and K=350 J. The total mechanical energy is:

M = 150 J + 350 J = 500 J

If the kinetic energy decreases to a new value, say K = 200 J, then the gravitational potential must increase to compensate for this new condition, that is: U = 300 J

So, It's gravitational potencial energy must increase

Hope it helps you I'm from ph :)

7 0

2 years ago

A race car traveling at 10. meters per second accelerates at the rate of 1.5 meters per seconds while traveling a distance of 7,

Arturiano [62]

The final speed of the car is 2) 150 m/s

Explanation:

Since the motion of the car is a uniformly accelerated motion, we can solve the problem by using the following suvat equation:

$v^2-u^2=2as$

where

v is the final velocity

u is the initial velocity

a is the acceleration

s is the distance covered

For the car in this problem, we have

u = 10 m/s

$a=1.5 m/s^2$

s = 7,467 m

Solving for v, we find the final velocity (and speed) of the car:

$v=\sqrt{u^2+2as}=\sqrt{10^2+2(1.5)(7,467)}=150 m/s$

Learn more about accelerated motion:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

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#LearnwithBrainly

4 0

2 years ago

Read 2 more answers

Plz help I’ll give Brainliest

Mariana [72]

Answer:

Explanation:

5 0

2 years ago

Read 2 more answers

Salt is now added to the water in the bucket, increasing the density of the liquid. what happens to the tension in the string ?

AlexFokin [52]

The question involves a ping-pong ball that is held submerged in a bucket by a string attached to the bottom of the bucket.

The answer is the tension of the string will increase. This is because making the water salty increases its density, and consequently, increases its buoyancy. This is why sea water is more buoyant than fresh water. Therefore the ping pong is pushed more upwards by the water when salt is added than initially. This gives the string more tension.

5 0

2 years ago

A 1200.0-kg car is traveling at 19m/s. The driver suddenly slams on the brakes and skids to a stop. The coefficient of kinetic f

Alja [10]

<h2>Answer</h2>

option D)

2.4 seconds

<h2>Explanation</h2>

Given in the question,

mass of car = 1200kg

speed of car = 19m/s

Force due to direction of travel

F = ma

= 12000(a)

Force to due frictional force in reverse direction

-F = mg(friction coefficient)

= -12000(9.81)(0.8)

<h2>-mg(friction coefficient) = ma </h2>

(cancelling mass from both side of equation)

g(0.8) = a

(9.81)(0.8) = a

a = 7.848 m/s²

<h2>Use Newton Law of motion</h2><h3>vf - vo = a • t</h3>

where vf = final velocity

vo = initial velocity

a = acceleration

t = time

0 - 19 = 7.8(t)

t = 19/7.8

= 2.436 s

≈ 2.4s

5 0

2 years ago