The __________ is the layer of the atmosphere where satellites and the space shuttle orbit the Earth.a. troposphere
c. mesosphere
b. stratosphere
d. exosphere

Answers

Answer 1

Answer:

Answer: d. exosphere

The exosphere is the outermost layer of the atmosphere of earth. It is present above the thermosphere which is lying above the earth. From this layer, the atoms and molecules escape out, which maintains an environment for the movement of satellites and space shuttles.

Answer 2

Answer: The most likely answer, according to an informational article I have read, on the earths atmosphere, is exosphere. Hope it helps! If u need more info, message me!

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Two cars leave towns 680 kilometers apart at the same time and travel toward each other. one car's rate is 10 kilometers per hour less than the other's. if they meet in 4 hours, what is the rate of the slower car?
Determine the acceleration of the moon, which completes a nearly circular orbit of 384.4 mm radius in 27.3 days.
When an object is charged, what type of subatomic particle is transferred between objects?
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Sound is a example of what kind of wave

A Boy throws a pebble into the center of the pond. A floating leaf near the waters edge oscillates ( moves up and down ) two complete cycles in one second as water waves move past the leaf. The waters wavelength is 10 meters. What is the waves velocity?

Answers

Wave speed = (wavelength) x (frequency)

= (10 m) x (2 / sec) = 20 m/s.

By the way . . .
The water doesn't move past the leaf. Only the wave does.

In the Niagara Falls hydroelectric generating plant, the energy of falling water is converted into electricity. The height of the falls is about 48 meters. Assuming that the energy conversion is highly efficient, approximately how much energy is obtained from one kilogram of falling water? Therefore, approximately how many kilograms of water must go through the generators every second to produce a megawatt of power (106 watts)?

Answers

Answer:

2.124 kg of water

Explanation:

height of the falls is about 48 meters.

Mass of water needed is 1kg = 1000g

Power needed is 106 watts.

The amount of energy in 106 watts in one sec is 106 joules.

To calculate the energy of the 1kg falling water = Mgh

Energy = 1000*9.81*48

Energy = 470880 joules.

1 megawatt is = 1000000watts

The kilogram of water needed is 1000000/470880 = 2.124 kg of water

Which best describes stellar equilibrium?A. The balance between pressure caused by heat and gravity caused
by the star's mass
B. The amount of light generated equals the amount of heat
generated
C. The equal amounts of elements that make up a star's core
D. The stable number of sunspots that exist on a star's surface

Answers

Answer:

Explanation:

C. the equal amounts of elements that make up a stars core.

Mary starts from her house, walks 80 meters south, and stops to chat with her aunt on the sidewalk. After chatting for a few minutes, she walks 125 meters to the west to meet a friend and then walks 45 meters north with her friend to a cafe for lunch. Overall, she takes 10 minutes to do all this. What is Mary’s average speed?

Answers

The average speed will be:
Total distance travelled divided by time taken
Total distance (in metres)= 80+125+45=250
Total time (minutes) =10
250/10
=25
Thus Mary's average speed is 25 metres per minute.

Answer:

Total distance (in metres)= 80+125+45=250

Total time (minutes) =10

250/10

=25

Explanation:

Which term refers to the time interval between the passage of successive wave crests? a. wave height
b. wave period
c. wave speed
d. wavelength

Answers

I believe the correct answer from the choices listed above is option B. The term that refers to the time interval between the passage of successive wave crests would be wave period. It is the time for a particle on a medium to make one complete vibrational cycle.

Julie finds a snail on the sidewalk and wants to know whether or not the snail moves throughout the day. She places a single mark on the sidewalk next to the snail.What will Julie use the mark for initially?

Answers

To make a base line mark to know where she started measuring the snails movement, at the end of the day she can measure from her first line to her last to see how far the snail went.
Hope this helped!

Answer:

To check the movement of the snail.

Explanation:

the answer was right :)

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At the local grocery store, you push a 14.5-kg shopping cart. You stop for a moment to add a bag of dog food to your cart. With a force of 12.0 N you now accelerate the cart from rest through a distance of 2.29 m in 3.00 s. What was the mass of the dog food?

A stealth bomber is flying straight and level at a constant speed of 150 m/s at an altitude of 3500 m above the ground. It drops a bomb intended to hit a specific target on the ground. a) How long will it take for the bomb to hit the ground? b) At what horizontal distance away from its target must the bomber release the bomb in order to strike its target?**disregard air resistance**

Two musicians are comparing their trombones. The first produces a tone that is known to be 438 Hz. When the two trombones play together they produce 6 beats every 2 seconds. Which statement is true about the second trombone? It is producing a 444-Hz sound, and could be producing no other sound frequency. It is producing either a 436-Hz sound or a 440-Hz sound. It is producing either a 435-Hz sound or a 441-Hz sound. It is producing either a 432-Hz sound or a 444-Hz sound. It is producing a 441-Hz sound, and could be producing no other sound frequency.