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Igoryamba
3 years ago
15

What causes a compass needle to point to geographic north?

Physics
1 answer:
morpeh [17]3 years ago
8 0
I believe it’s “C”
Hope that’s help you(:
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According to the Law of Conservation of Mass, which of the followig is (are)correct?Question 3 options:
Gennadij [26K]

Answer:

A. Mass cannot be created or destroyed:)

Explanation:

uhhhhh idk what to write here. Hope this helped;))

7 0
3 years ago
It takes a person 22 seconds to swim in a straight line from the south end of
borishaifa [10]

Answer:

1.27 m/s.

Explanation:

The following data were obtained from the question:

Displacement (D) = 28 m

Time (t) = 22 secs

Velocity (v) =?

Velocity is simply defined as the rate of change of displacement of an object with time. It can be represented mathematically as:

Velocity (v) = Displacement (D) /Time (t)

v = D/t

With the above formula, we can obtain the swimmer's velocity as follow:

Displacement (D) = 28 m

Time (t) = 22 secs

Velocity (v) =?

v = D/t

v = 28/22

v = 1.27 m/s

Therefore, the swimmer's velocity is 1.27 m/s.

6 0
4 years ago
A gun is fired with angle of elevation 30°. What is the muzzle speed if the maximum height of the shell is 544 m? (Round your an
Artemon [7]

Answer:

206.62313 m/s

Explanation:

u = Muzzle speed

g = Acceleration due to gravity = 9.8 m/s²

\theta = Angle at which the bullet is fired = 30°

h = Maximum height = 544 m

Maximum height is given by

h=\dfrac{u^2sin^2\theta}{2g}\\\Rightarrow u=\sqrt{\dfrac{2gh}{sin^2\theta}}\\\Rightarrow u=\sqrt{\dfrac{2\times 9.81\times 544}{sin^2(30)}}\\\Rightarrow u=206.62313\ m/s

The muzzle speed is 206.62313 m/s

6 0
4 years ago
Rate in miles/hours if your run at a speed 2.2 20miles
Vinvika [58]
9.1 miles per hour because 2.2 is your hours right?
5 0
4 years ago
When storm clouds produce lightning and thunder, energy changes to energy and energy.
balandron [24]
When storm clouds produce lightening and thunder, then, potential energy changes into kinectic energy.

The clouds become negatively charged,and the ground is positively charged during a storm. So there creates a potential difference between the charged clouds and the ground. And when this becomes huge so much that it over comes the electrical insulation cover of air, the electrons jump to the ground.i.e. the potential energy changes into kinetic energy.
8 0
4 years ago
Read 2 more answers
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