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3 years ago

Why are there rings on Saturn?

Physics

1 answer:

Fofino [41]3 years ago

7 0

The gravity pulls millions of small particles of rock and ice into orbit around it similar to why we have the moon

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g You are blowing air into a spherical balloon at a rate of 33 cubic inches per second. Given that the radius of the balloon is

Marina CMI [18]

Answer:

$\frac{3}{16\pi}in/sec$

Explanation:

We are given that

$\frac{dv}{dt}=3in^3/s$

r=2 in when t=4 s

We have to find the rate of change of radius.

We know that

Volume of sphere= $V=\frac{4}{3}\pi r^3$

Differentiate w.r.t t

$\frac{dV}{dt}=4\pi r^2\frac{dr}{dt}$

Substitute the values

$3=4\pi(2)^2\times \frac{dr}{dt}$

$\frac{dr}{dt}=\frac{3}{4\pi(2)^2}$

$\frac{dr}{dt}=\frac{3}{16\pi}in/sec$

8 0

3 years ago

What Layer of the Earth is composed of Fe and Ni

ohaa [14]

I believe the answer is the core.

6 0

3 years ago

A race car is on a track has a velocity of 200 m/s. 15 seconds later the driver notices that he is going 350 m/s. What is his ac

shtirl [24]

Answer:

initial velocity (u) = 200m/s

final velocity (v) = 350 m/s

time (t) = 15s

acceleration (a) = ?

NOW,

a=v-u/t

a= 350-200/15

a= 50/15

a= 3.3333

Explanation:

it's too easy just u need to understand the question . and go according to it's content .

main thing to memorize is it's simple formula.

I HAVE SOLVE THIS QNA. IN VERY

SIMPLE AND UNDERSTANDABLE FORM.

I høpë u hađ uņdērstøöď ťhìs şølutîóñ

:verý ×wəłł.

8 0

4 years ago

2. Many streets and parking lots are illuminated with

Lena [83]

Answer:

Sodium-vapour lights

Explanation:

Sodium-vapour lights are lights that are a type of gas discharge lamp that uses sodium in a high energy state to produce light,sodium discharge lamps are one of the brightest form of lighting used in motor parks and streets. There are basically two types of sodium-vapour lights, they include the low pressure sodium-vapour lights and the high pressure sodium-vapour lights.

6 0

3 years ago

On a hot day, yon are in a sealed, insulated room. The room contains a refrigerator, operated by an electric motor. The motor do

natta225 [31]

Answer: Heat is removed from the room at 12W

Explanation: Since the room is insulated, no heat can leave the room except it is air conditioned.

The engine does work at a rate ∆W/t = 450W

Power is generated at a rate ∆Q/t = 438W

Net change in energy = (∆Q-∆W)/t

= ∆Q/t - ∆W/t

= (438 - 450)W

= 12W

5 0

4 years ago