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Ainat [17]
4 years ago
9

The force you have to overcome to start an object moving is ____. A. Rolling friction c. Sliding friction b. Static friction d.

Air resistance Please select the best answer from the choices provided A B C D
Physics
1 answer:
finlep [7]4 years ago
5 0

Air resistance Please select the best

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Which statement correctly describes these electric field lines?
Otrada [13]
I don’t know, which statement ahh I see white screen lol
4 0
3 years ago
A girl delivering newspapers covers her route by traveling 3.00 blocks west, 4.00 blocks north, and then 6.00 blocks east. What
Harrizon [31]

The concepts used to solve this problem are those related to the Pythagorean theorem for which we will calculate the distance and the pitch.

According to the attached diagram we have that the expression of the resulting displacement is

R = \sqrt{(3b)^2+(4b)^2}

Therefore the resultant displacement of the girl is

R = \sqrt{(9b^2+16b^2)}

R = \sqrt{25b^2}

R = 5b

Therefore the girl has displaced around of 5 blocks

4 0
3 years ago
A car starts from the state of xestIf its velocity becomes 70 km/hr in 6 minutes, i) what is the accordine acceleration of F the
Alexxandr [17]

Answer: 3.5\ km

Explanation:

Given

Car starts from the state of rest and acquires a velocity of 70\ km/hr in 6 minutes

Final velocity in m/s is v=70\approx 19.44\ m/s

Using equation of motion

v=u+at\\\Rightarrow 19.44=0+a(6\times 60)\\\Rightarrow a=0.054\ m/s^2

Distance covered in 360 s

\Rightarrow v^2-u^2=2as\\\Rightarrow 19.44^2-0=2\times 0.054\times s\\\Rightarrow s=3500.64\ m\approx 3.5\ km

4 0
3 years ago
What is the process called in which water vapor and carbon dioxide retain heat?
saw5 [17]

The process in which water vapour and carbon dioxide traps heat is called the “greenhouse effect”.

 

The greenhouse effect is a natural phenomenon which occurs every day. To illustrate an example of this natural phenomenon, d<span>uring the day the Sun shines through the atmosphere. Earth's surface warms up because of the sunlight. Meanwhile at night in the absence of the sunlight, Earth's surface cools back and releasing the heat back into the air. However some of the heat is retained by the greenhouse gases (such as carbon dioxide and water vapour) in the atmosphere. This process what keeps our planet Earth warm and cozy at an average temperature of 16°C.</span>

<span>
</span>

<span>Answer:</span>

<span>greenhouse effect</span>

6 0
3 years ago
Help awnser need experts​
pishuonlain [190]

12. The answer would be C. 1.50 s. This is because if you divide 60 by 40, you will get 1.5.

13. For this one I'm not sure, but what I can tell you is that the heavier something is the faster it will sink, the lighter it is, it will float.

5 0
4 years ago
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