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Natasha_Volkova [10]
4 years ago
6

How do repeater stations improve the quality of a broadcast?

Physics
1 answer:
insens350 [35]4 years ago
3 0
They pick up broadcast signals, amplify them, then send them out.
This is needed due to the radio waves traveling in a ripple pattern; they degrade over time.
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A dog walks 26m, East, 29m, West, and 7m, East. What is his displacement?
sergeinik [125]

Answer:

4m East

Explanation:

26-29= -3 (so that means 3m west)

-3+7= 4 (so 4m East)

hope it helps

7 0
3 years ago
Explain two reasons why sea ice so important to a polar bear.
Zolol [24]
This loss of stable old ice has set up additional losses of sea ice cover each summer because the thinner younger ice is more easily melted during the recent warmer summers. Because of their dependence upon the sea ice for food, these changes can directly affect the carrying capacity of the Arctic for polar bears. Mark this as the brainliest answer please
6 0
3 years ago
Two campers dock a canoe. One camper has a mass of 100.0 kg and moves forward at 3.0 m/s as he leaves the canoe to step onto the
KengaRu [80]

Answer:

V = -1.33 m/s

Explanation:

Given,

The mass of the camper, m = 100 kg

The velocity of the camper, v = 3.0 m/s

The combined mass of canoe and another camper, M = 225 kg

The velocity of the combined canoe and another camper, V = ?

According to the law of conservation of momentum,

                          MV + mv = 0  (Since the initial momentum of the dock is 0)

                             V = -mv/M

                                =  -100 x 3/225

                                = -1.33 m/s

The negative sign indicates that the combined objects moves opposite to that of the camper.

Hence, the velocity of the combined canoe and camper is, V = -1.33 m/s

6 0
4 years ago
Forms when heat, pressure, or fluids act on igneous, sedimentary, or other metamorphic rock to change its form or composition, o
BARSIC [14]
I think its a metamorphic rock because i know 100% that a metamophic rocks are created by heat and pressure
4 0
3 years ago
A shovel pushes on dirt and the dirt pushes back on the shovel. The dirt pushing back is
Leno4ka [110]
The dirt pushing back is the 'resistance' force. It RESISTS your attempts to shovel it.
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3 years ago
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