PHYSICS HIGH SCHOOL

Which project involved the goal of orbiting a manned spacecraft around earth? A. Mercury

B. Apollo

C. Gemini

D. Skylab

Answers

Answer 1
Answer: A. Mercury
Project Mercury was designed to send a person into orbit before the Soviet Union did so.
Answer 2
Answer:

Answer:

The anser is A. Mercury

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What of the following frequencies falls in the range of RF waves used by commercial radio broadcasting stations

Answers

There are no broadcasting frequencies included on your list.
In fact, there are no frequencies at all on your list.
In fact, there's no list !
Where are the choices ?  What does "the following" mean anyway ? ?

In the USA . . .

-- AM radio broadcasting operates between 550 KHz and 1.7 MHz.

-- FM broadcasting operates between 87.9 MHz and 108.1 MHz.

-- The numbers are slightly different in some other countries.

-- Regarding TV . . . don't ask.  It can get really complicated.

When an airplane\u2019s ailerons move in opposite directions they usually cause a plane to:"?

Answers

They would cause the plane to roll.

When one tectonic plate moves underneath another, what is occurring?A. subduction
B. collision
C. uplift
D. slip

Answers

the answer is A.) subduction

What is the speed of a wave yhat has a frequency of 2.0Hz

Answers

You can't tell the speed of a wave from only its frequency.

You also need to know either the wavelength, or what substance
the wave is traveling through.

-- If you know the frequency AND wavelength, you can
calculate the speed.

-- If you know what substance the wave is traveling in, you can
probably determine its speed without knowing anything else about it.

What happens to the temperature of a substance during a phase change?a. The temperature increases.
b. The temperature decreases.
c. The temperature remains constant.
d. The temperature fluctuates randomly.

Answers

during a phase change, the temperature remains constant. obviously all the heat is used in phase transformation.

Answer:

THE TEMPERATURE DECREASES

Explanation:

the clouds reflect the suns rays so the go away therefore making it less hot

Please hurry! 30 pointsA free body diagram of a brick on an inclined plane is shown below. What is the coefficient of friction?

Answers

Answer:

50.000

Explanation:
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