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3 years ago

Loud of dust and gas in space is a(n) Blank Space __________.

2 answers:

8 0

A cloud in space that is composed of dust and gas is call a nebula. The word nebula is derived from the Latin word for cloud, and nebulae in space are indeed large interstellar clouds made up of dust, hydrogen, helium and plasma.

Plz mark brainliest!

madreJ [45]3 years ago

6 0

A cloud in space that is composed of dust and gas is call a nebula. The word "nebula" is derived from the Latin word for "cloud," and nebulae in space are indeed large interstellar clouds made up of dust, hydrogen, helium and plasma.

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A spool of thin wire (with inner radius r = 0.45 m, outer radius R = 0.60 m, and moment of inertia Icm = 0.8208 kg·m2) pivots on

makkiz [27]

Answer:

$E_L=4.667J$

Explanation:

The energy lost can be model by the energy equation in potential and kinetic energy in each step of the motion

Given: $r=0.45m$ , $R=0.60m$ , $I_m=0.8208 kg*m^2$ , $v=63.1cm/s$ , $m=1.3kg$

$E_p=m*g*r$

$E_p=1.3kg*9.8m/s^2*0.45m$

$E_p=5.733 J$

Kinetic energy:

$K_{Es}=\frac{1}{2}*I*w^2$ , $K_{Ep}=\frac{1}{2}*m*v^2$

$w=v^2/r$

Energy lost :

$E_p-K_{Es}-K_{Ep}=0$

$5.733J-\frac{1}{2}*0.8208kg*(\frac{(0.631m/s)^2}{0.45m})^2-\frac{1}{2}*1.3kg*(0.631m/s)^2=0$

$E_L=4.667J$

3 0

4 years ago

Which statement about ocean surface currents is false.

Lynna [10]

B.) They have no effect on air temperature over land on the coast.

Explanation:

The statement that ocean surface currents do not have any effect on air temperature over land on the coast is very incorrect.

In fact, ocean surface currents shapes the coast a whole lot.

There is a constant interaction between the ocean surface current and the air masses on land.
They interact by simple convection through which heat is transferred from one point to the other.
During the day, air masses moves from the land to the ocean because air around the coast are hotter and less dense.
They are quickly replaced by colder and less denser air from the ocean.
At night the reverse is the case.

learn more;

Ocean and atmosphere brainly.com/question/1851697

#learnwithBrainly

7 0

3 years ago

In the 1950s, while demand for lumber was high, the Great Cloudy Mountains were wiped clean of trees. Today, an effort to grow b

leva [86]

I think the answer is Reforestation

6 0

3 years ago

You drive in a straight line at 24.0 m/s for 10.0 miles, then at 30.0 m/s for another 10.0 miles. Part A Is your average speed 2

aliina [53]

Answer:

less than 27 m/s

Explanation:

The average speed would be total distance (10 + 10 = 20 miles = 32000 m) over total time

The time it takes you to drive the first 10 miles (16000 m) at 24m/s is

16000 / 24 = 666.67 s

The time it takes you to drive the 2nd 10 miles (16000 m) at 30 m/s is

16000 / 30 = 533.33 s

The average speed is

$v = \frac{16000 + 16000}{666.67 + 533.33} = \frac{32000}{1200} = 26.67 m/s$ < 27 m/s

So your average speed is less than 27 m/s

6 0

3 years ago

at Niagara Falls, if 505 kg of water fall a distance of 50.0 m, what is the increase in the internal energy of the water at the

anygoal [31]

Answer:

Hope that helps

Explanation:

the increase in the internal energy of the water at the bottom of the falls

= mgh

= 505 * 9.81 * 50

= 247703 J ----answer

5 0

3 years ago