Statement or best answers each question.

Physics

1 answer:

Setler79 [48]3 years ago

8 0

Answer:

See Explanation

Explanation:

1. A. Five

2. Both B. and C. say the same thing so I'm a bit confused but the answer is approximately 6,000 degrees C

3. I think B. It is under tremendous pressure

4. D. Both A. and B.

Hope this helps

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1. In a single atom, no more than 2 electrons can occupy a single orbital? A. True B. False

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1. In a single atom, no more than 2 electrons can occupy a single orbital? A. True

2. The maximum number of electrons allowed in a p sublevel of the 3rd principal level is?
B.6

3. A neutral atom has a ground state electronic configuration of 1s^2 2s^2. Which of the following statements concerning this atom is/are correct?
B. All of the above.

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4 years ago

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An applied force of 50 N is used to accelerate an object, that weighs 73 N, to the right across a frictional surface. The object

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Answer:

5.38 m/s^2

Explanation:

NET force causing the object to accelerate = 50 -10 = 40 N

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A detrital rock is named

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Sedimentary rocks also known as clastic sedimentary rock

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3 years ago

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Explain the origin of the magnitude designation for determining the brightness of stars. Why does it seem to go backward, with s

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Answer:

Hipparchus was an ancient Greek who classified stars based on the brightness in 129 B.C. He grouped the brightest stars and ranked them 1 (first magnitude) and dimmest stars as 6 (sixth magnitude). Thus, the smaller numbers indicated brighter stars. Now, the scale extends in negative axis as well. More the negative number, brighter is the star. For example, Sun has magnitude -26.74.

This the apparent magnitude which means the classification is based on the brightness of the star as it appears from the Earth.

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4 years ago

A high-jumper, having just cleared the bar, lands on an air mattress and comes to rest. Had she landed directly on the hard grou

Hoochie [10]

Answer:

e. the air mattress exerts the same impulse, but a smaller net avg force, on the high-jumper than hard-ground.

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This is according to the Newton's second law and energy conservation that the force exerted by the hard-ground is more than the force exerted by the mattress.

The hard ground stops the moving mass by its sudden reaction in the opposite direction of impact force whereas the mattress takes a longer time to stop the motion of same mass in a longer time leading to lesser average reaction force.

Mathematical expression for the Newton's second law of motion is given as:

$F=\frac{dp}{dt}$ ............................................(1)