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Lina20 [59]
3 years ago
13

A skier is standing still on a flat area of snow.

Physics
1 answer:
Anna11 [10]3 years ago
8 0
  • Force=550N
  • Area=0.015m^2

We know

\boxed{\sf Pressure=\dfrac{Force}{Area}}

\\ \sf\longmapsto Pressure=\dfrac{550}{0.015}

\\ \sf\longmapsto Pressure=36666Pa

\\ \sf\longmapsto Pressure=36666N/m^2

Most nearest value is 37000N/m^2

Hence option b is correct

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a family backpacking at Yosemite national park took 5 hours to climb a mountain trail 7.5 km long. what was the family's average
nirvana33 [79]

Answer:

The average speed will be 1.5km/hr .

Explanation:

Distance need to be traveled = 7.5Km

Time taken = 5 hours

Average speed refers to total distance traveled with respect to total time taken .

It can be calculated as given below :

Average speed =total distance /total time taken

Substituting the values we get ,as shown below

Average speed =7.5/5=75/50

Average speed = 1.5 Km/hr

5 0
3 years ago
Pulmonary circulation involves blood flow to and from the heart and the ____?
olga nikolaevna [1]
I believe the answer would be lungs
3 0
3 years ago
Read 2 more answers
11. A collection of a small group of factors that are related is known as a(n)
malfutka [58]

Answer:

system

Explanation:

they are all put together as one, and they are a group

5 0
2 years ago
NEED HELP ASAP, ILL GIVE YOU BRAINLIEST IF CORRECT (30POINTS)
Vera_Pavlovna [14]

Answer:

the bar is the top and bottem. the nucleas in the middle and the Spiral arm is the last space

Explanation:

5 0
3 years ago
After a check up, a person now has a far point of 100 cm, but with good near point vision. He needs to wear a new pair of correc
lakkis [162]

Answer:

so his far point according to this pair of glass is 200 cm

Explanation:

power of old pair of corrective glasses is given as

P = -0.5 dioptre

now we have

f = \frac{1}{P}

f = -2 m

f = -200 cm

now we know that for normal vision the maximum distance of vision is for infinite distance

so by lens formula we have

\frac{1}{d_i} + \frac{1}{d_o} = \frac{1}{f}

\frac{1}{d_i} + 0 = \frac{1}{200}

d_i = 200 cm

so his far point according to this pair of glass is 200 cm

7 0
3 years ago
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