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Alex_Xolod [135]
2 years ago
6

How would the number 13,900 be written using scientific notation?

Physics
1 answer:
Oksanka [162]2 years ago
6 0

Answer:

um d. but I am guessing this ans

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A plane traveled south for 2.5 hrs at a velocity of 1200km/hr. What distance did it travel?
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From the formula, V=displacement/time
displacement/distance =velocity*time
distance=1200*2.5
distance=3*10³km
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3 years ago
Which layer of the blood vessel is made of strong, flexible fibrous connective tissue?
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Circulatory system
The tunica adventitia, the outermost layer, is the strongest of the three layers. It is composed of collagenous and elastic fibres. (Collagen is a connective-tissue protein.) The tunica adventitia provides a limiting barrier, protecting the vessel from overexpansion.
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2 years ago
As the pendulum swings through the origin, it has a speed of v0 = 1.1 m/s. If the mass on the end of the pendulum is 15 g, and t
serg [7]

Answer:

1: 6.18 cm

2: 52.5609 degrees

Explanation:

We have the pendulum speed at the origin, and in that moment, all energy is kinetic, so we can calculate the pendulum energy by:

Ec = 0.5*m*v^2 = 0.5*0.015*1.1^2 = 0.0091 J

Now with that energy, we can calculate the height the pendulum will reach, as in that moment, the kinetic energy is totally converted to gravitational potencial energy:

Eg = m*g*h = 0.0091

0.015 * 9.81 * h = 0.0091

h = 0.0091 / (0.015 * 9.81 ) = 0.0618 m = 6.18 cm

Looking at the image attached, we can see that the pendulum will form a triangle, and one of the cathetus will be the length of the pendulum minus the height it went up, and the hypotenusa will be the pendulum length.

So, we know that the sine of the angle will be the division between the opposite cathetus and the hypotenusa:

sin(angle) = (30-6.18)/30 = 23.82/30 = 0.794 -> angle = 52.5609 degrees

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3 years ago
A circuit that has only one loop for the current of electrons to flow through is
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the diagram shows a thermometer used to measure temperature. the area on the thermometer marked with the letter A is called
Viefleur [7K]
I believe the answer is scale 
7 0
3 years ago
Read 2 more answers
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