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3 years ago

I need help. Is this right? ITS SO

Physics

1 answer:

marishachu [46]3 years ago

4 0

Answer:

Yes, that is correct.

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I don't get it can you please help me?

Delvig [45]

The cats resting points are D and E, because the line is flat. meaning no change in movement is occurring, so the cat is resting. And that means answer choice C, is correct!

4 0

3 years ago

Read 2 more answers

The force F has a magnitude of 500 lb and acts along the line AM where M is the midpoint of the vertical side OB of the parallel

Sedbober [7]

Answer:

The magnitude of components vector F (x,y,z) respectively =

390lb, -244lb, 195.2lb respectively

Explanation:

see the attached file

6 0

4 years ago

What type of star has a low temperature and a low luminosity?

Brrunno [24]

Answer:

Explanation:

the higher up on the Main Sequence the star is, the shorter it lives. The smaller main sequence stars have low luminosities and low surface temperatures. These stars take a very long time to fuse hydrogen into helium and will therefore live a very long life.

8 0

3 years ago

The Sun radiates energy at a rate of about 4×1026W. Earth is about 150×106km from the Sun.

sergiy2304 [10]

The average intensity received on the Earth's surface is $12.6*10^{10} W/m^{2}$

$Intensity = Rate of energy radiated/4\pi R^{2}$

where R is the distance of the earth from the sun.

$I=4*10^{26}/4\pi *[150*106*10^{3}]^{2}$

$I=0.12597*10^{12}$

$I=12.6*10^{10} W/m^{2}$

What is the meaning of the intensity of sunlight?

Sun intensity refers to the amount of incoming solar energy, or radiation, that reaches the Earth's surface. The angle at which the rays from the sun hit the Earth determines this intensity.

What is the average intensity received on the Earth's surface?

The average intensity received on the Earth's surface is given by:

$I=rate of energy radiated/4\pi R^{2}$

Thus, the average intensity received on the Earth's surface is $12.6*10^{10} W/m^{2}$

To know more about the intensity received from the sun:

brainly.com/question/29579262

#SPJ1

8 0

1 year ago

A 200.0 kg piano is elevated by a crane to a height of 10.0 meters above a sidewalk. If the rope holding the piano breaks, what

Nitella [24]

All that business about the crane and the rope and the falling
is only there to confuse us.

The piano ended up 5 meters above the ground.

   Potential energy = (mass) (gravity) (height)

   = (200 kg) (9.81 m/s²) (5 m)

   = (200 · 9.81 · 5) (kg-m²/s²)

   = 9,810 joules .

5 0

3 years ago