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hichkok12 [17]
2 years ago
10

PLEASE HELP ME TIMED TEST!!!

Physics
2 answers:
Dmitry [639]2 years ago
8 0

Explanation:

\boxed{\sf{K.E = \dfrac{1}{2} \times m \times v^2}}

  • Here, K . E or Kinetic Energy is given as 14 J
  • Here, mass is 17 kg

Let's Do!

\boxed{\sf{14 = \dfrac{1}{2} \times 17 \times v^2}}

\boxed{\sf{\dfrac{14 \times 2}{17} = v^2}}

\boxed{\sf{ \sqrt{\dfrac{14 \times 2}{17}}= v}}

So, 1.283 m/s is the required answer.

malfutka [58]2 years ago
7 0

Answer:

56

Explanation:

I just want the points to be completely honest with you.  

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If someone were monitoring your vital signs (like your heart rate, oxygen content in your blood, blood pressure, etc.) every hou
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Answer:

Accuracy

Explanation:

I think accuracy is more important. When it comes to vital organs in the body, the exactness of getting the measurement is paramount. Accuracy deals with getting very close, almost exact you may say, to a known standard. Precision on the other hand, deals with how easy a measurement can be retaken, reproduced or remade, irrespective of how far or close they are from the accepted norm.

From this, we can agree that precision neglects the most important factor, closeness or say, exactness. Precision isn't bothered by it. And while that can be excused in a few instances, it certainly can not be permitted when it comes to life, or organs of the body

7 0
3 years ago
Which instrument is used to measure depth of ocean ?
skelet666 [1.2K]
Echo sounding is a type of SONAR used to determine the depth of water by transmitting sound pulses into water. The time interval between emission and return of a pulse is recorded, which is used to determine the depth of water along with the speed of sound in water at the time.
5 0
2 years ago
A fold is a _ in a rock , and a fault is a _in a rock?
777dan777 [17]
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So A fold is a Bend? in a rock. Maybe.

</span>A fault<span> is a planar fracture or discontinuity in a volume of </span>rock<span>, across which there has been significant displacement as a result of </span>rock<span>-mass movement.</span>
3 0
3 years ago
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solong [7]

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3 0
3 years ago
a radio antenna broadcasts a 1.0 MHz radio wav e with 21 kW of power. Assume that the radiation is emitted uniformly in all dire
My name is Ann [436]

Answer:

I=2.67\times 10^{-6}\ W/m

Explanation:

Given that,

Frequency of a radio antenna is 1 MHz

Power, P = 21 kW

We need to find the the waves intensity 25 km from the antenna . The object emits intenisty evenly in all direction. It can be given by :

I=\dfrac{P}{4\pi r^2}\\\\I=\dfrac{21\times 10^3}{4\pi (25000)^2}\\\\I=2.67\times 10^{-6}\ W/m

So, the wave intensity 25 km from the antenna is 2.67\times 10^{-6}\ W/m.

5 0
3 years ago
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