4 years ago

When a DNA Sample arrives at the lab whats its first step

1 answer:

3 0

What is the measurement of each of the interior angles of a regular quadrilateral?<span>90°
180°
60°
120°
</span>NextReset

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The amount of energy absorbed by a vehicle in an impact is related to __________ A. the direction of the impact. B. the design o

elena55 [62]

I think its most likely a the direction of the impact

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3 years ago

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A skater rotates with her arms crossed at an angular speed of 8.0 rad/s and she has a moment of inertia of 100 kg/m2. She extend

solong [7]

Answer:

When her hands extends, her momen of inertia is $4.28\ kg-m^2$ .

Explanation:

Given that,

Initial angular speed, $\omega_i=8\ rad/s$

Initial moment of inertia, $I_1=100\ kg-m^2$

Final angular speed, $\omega_f=7\ rad/s$

Initially, a skater rotates with her arms crossed and finally she extends her arms. The momentum remains conserved. Using the conservation of momentum as :

$I_1\omega_1=I_2\omega_2$

$I_2$ is final moment of inertia

$I_2=\dfrac{I_1\omega_1}{\omega_2}\\\\I_2=\dfrac{100\times 8}{7}\\\\I_2=114.28\ kg-m^2$

So, when her hands extends, her momen of inertia is $4.28\ kg-m^2$ . Hence, this is the required solution.

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3 years ago

A 3.00 kg box is lifted by an upward force 1.50 m above the surface pf Earth to the top of a table. What is the potential energy

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The potential energy is 45J(joules)

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4 years ago

Which of the following would 15 centimeters be equal to

Goshia [24]

Answer:

150 millimeters

Explanation:

According to linear conversion of units;

1 cm is equivalent to 10 mm

Therefore, 15 cm will be equivalent to 150 mm

On the other hand;

1 Meter is equivalent 100 cm

Therefore; 15 cm will also be equivalent to 0.15 M

Hence;

15 cm = 150 mm = 0.15 m, and so forth

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3 years ago

Long term exposure to ___________ waves can cause sunburns and skin cancer

Advocard [28]

Answer:

Radiation waves (From the sun)

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