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Oliga [24]
3 years ago
6

The earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the pla

ne of the equator. assuming the earth is a sphere with a radius of 6.38 106 m, determine the speed and centripetal acceleration of a person situated at each of the following.
Physics
1 answer:
Rama09 [41]3 years ago
7 0
Please elaborate more on your question so I can help you
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As electrons are passed through the system of electron carriers associated with photosystem ii
nexus9112 [7]
The answer is “it is used to establish and maintain a proton gradient.”
4 0
4 years ago
A 95 N force exerted at the end of a 0.50 m long torque wrench gives rise to a torque of 15 N · m. What is the angle (assumed to
o-na [289]

Answer:

angle = 18.40 degree

Explanation:

given data

force = 95 N

distance = 0.50 m

torque = 15 N · m

to find out

angle between the wrench handle and the direction of the applied force

solution

we will apply here torque equation that is express as

torque =  distance × force × sin(θ)   ...................1

put here value we will get angle that is

15 = 0.50 × 95 × sin(θ)

sin(θ) = 0.315789

θ = 18.40 degree

6 0
3 years ago
Read 2 more answers
A 20.0-kg rock is sliding on a rough, horizontal surface at 8.00 m/s and eventually stops due to friction. The coefficient of ki
Neporo4naja [7]

Answer:

a = -1.961\,\frac{m}{s^{2}}, s = 16.318\,m, t = 4.079\,s

Explanation:

The equations of equilibrium for the rock are:

\Sigma F_{x} = -\mu_{k}\cdot N = m \cdot a

\Sigma F_{y} = N - m\cdot g = 0

After some algebraic handling, the following expression is found:

-\mu_{k}\cdot m \cdot g = m \cdot a

-\mu_{k}\cdot g = a

Deceleration experimented by the rock is:

a = - (0.2)\cdot (9.807\,\frac{m}{s^{2}} )

a = -1.961\,\frac{m}{s^{2}}

The distance travelled by the rock before stopping is:

s = \frac{(0\,\frac{m}{s} )^{2}-(8\,\frac{m}{s} )^{2}}{2\cdot (-1.961\,\frac{m}{s^{2}} )}

s = 16.318\,m

And the time is:

t = \frac{0\,\frac{m}{s}-8\,\frac{m}{s}}{(-1.961\,\frac{m}{s^{2}} )}

t = 4.079\,s

5 0
3 years ago
Read 2 more answers
Which describes a reflected image in a plane mirror
Lerok [7]

<u>Answers</u>

same distance from the mirror as the object

same size

lateral inversion

<u>Explanation</u>

The image formed by a plane mirror is formed at equal distance from the mirror as the object is.

The size of the image is the same as the size of the object.

The image is laterally inverted. This means that, when  a person lifts his right hand, his or her image will raise it's left hand.


8 0
3 years ago
Read 2 more answers
Another name for a pivot point is the:
olya-2409 [2.1K]

option c is correct yup

4 0
3 years ago
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