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N76 [4]
3 years ago
15

A shopper walks eastward 5.4 meters and then westward 8.9

Physics
2 answers:
grandymaker [24]3 years ago
6 0

Answer:

We know that he first walks 5.4 meters to east, and then a distance of 8.9 to the west.

If we define the positive x-axis as the east, then the negative x-axis is the west. and the distances walked can be:

first 5.4m and then -8.9m

The distance moved:

This is the total distance moved, in this case, he first moves a distance of 5.4 meters and then a distance of 8.9 meters, the total distance is: 5.4m + 8.9 m = 14.3m

now the displacement is the diference in the initial position and the final position.

if the initial position is the zero at the x-axis, the final position is

p = 5.4m - 8.9m = -3.5m

This means that the magnitude is 3.5 meters, and the direction is the negative x-axis (or west in this case)

Law Incorporation [45]3 years ago
4 0

Answer:

D

Explanation:

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How much energy is wasted if a 100 W device is left on for 20 hours
Sladkaya [172]

Answer:

100 watts x 10 hours = 1,000 watt‐hours = 1 kWh

4 0
3 years ago
How do we maintain heat in our body ?​
zysi [14]

Answer:

When heat activates sweat glands, these glands bring that water, along with the body's salt, to the surface of the skin as sweat. Once on the surface, the water evaporates. Water evaporating from the skin cools the body, keeping its temperature in a healthy range.

Explanation:

The system can respond to internal and external influences and make adjustments to keep your body within a degree or two of your normal. The hypothalamus and your autonomic nervous system work with your skin, sweat glands, muscles and even your blood vessels to keep your temperature normal. As in other mammals, thermoregulation is an important aspect of human homeostasis. Most body heat is generated in the deep organs, especially the liver, brain, and heart, and in contraction of skeletal muscles. Some nuts like peanuts, almonds, cashews, pistachios, and dates are also beneficial in winter. These nuts speed up your metabolism and increase your body temperature, eventually making you feel hot.

7 0
3 years ago
Need help please... thank u​
tangare [24]

Answer:

the answer from my side is both vertical and horizontal

4 0
3 years ago
Read 2 more answers
What is the cost of operating a 100 W light bulb for "4 hrs per day" for 30 days, if the cost of electricity is 6 cents kW•h
Sidana [21]

Answer:

the cost of operating the light bulb is 72 cents.

Explanation:

Given;

cost of electricity, C = 6 cents / kW.h

power of light bulb, P = 100 W

time of light power consumption, t = 4 hours per day for 30 days

total time = 4 hours x 30 = 120 hours

Power consumed by the light bulb is calculated as;

P = 100 x 120 = 12000 w.h = 12 kW.h

Cost of power consumption = 6 cents/kWh x 12 kWh

                                               = 72 cents

Therefore, the cost of operating the light bulb is 72 cents.

3 0
3 years ago
Which restricted basin has the coolest temperatures?
sattari [20]

Hudson Bay is the  restricted basin that has the coolest temperatures

Hudson Bay is a restricted basin which  remains frozen or is dominated by ice over the summer solstice and through- out much of the high-sun season. This basin experiences a harsh continental climate.

The average annual temperature in almost the entire bay is around 0 °C (32 °F) or below. In the extreme northeast, winter temperatures average as low as −29 °C or −20.2 °F. The region of this basin has very low year-round average temperatures.

This basin starts freezing up by early November, and the northern part of the basin is typically entirely iced over by the end of the month.

correct answer is Hudson bay

learn more about basin :

brainly.com/question/11871406?referrer=searchResults

#SPJ4

3 0
2 years ago
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