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FromTheMoon [43]
3 years ago
9

If you are asked to determine an object’s speed, what information must you have? A. distance and period of time B. distance and

change in position C. period of time and direction D. distance and direction
Physics
2 answers:
Oduvanchick [21]3 years ago
8 0
The correct answer among the choices presented above is option A. <span>If you are asked to determine an object’s speed, you should have an idea on the object's distance traveled and the period of time the object reached that distance. Hope this answers the question,</span>
Anni [7]3 years ago
5 0

The correct answer to the question is : A) Distance and period of time.

EXPLANATION:

Before answering this question, first we have to understand speed.

The speed of a body is defined as the rate of change of distance or the distance covered by the body per unit time.

We know that distance is a scalar quantity. So, speed is also a scalar quantity. Hence, it requires only magnitude for its complete specification. No direction is needed.

Hence, distance and period of time is needed to determine speed of  a body.


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Radon-222 transforms into polonium-218 and an alpha particle (he-4). what else is created?
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3 years ago
How to find the period of a wave
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The method to choose depends on what information you have, and
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5 0
4 years ago
A boy throws a ball straight up into the air. It reaches the highest point of its flight after 4 seconds.
Zanzabum

Answer:Take into account the the Earths gravity is 9.8 meters a second

Explanation:

Gravity pulls down on the ball at g=-9.81 m/s^2. Up is positive, down is negative.The ball started at a certain initial velocity of Vi m/s. Time it took is t=4s. Final velocity is Vf=0 m/s, because at the highest point the ball stops moving.

Vf=(g*t)+Vi

Rearrange for Vi.

Vi=Vf-(g*t)

Vi=0-(-9.81*4)=39.24 m/s (upward)

Think about it this way for the non-mathematical approach. The ball stops at the top. The initial velocity gets reduced by 9.81 m/s every second, and reaches 0 m/s at the top. It took 4 seconds, so 9.81*4 is equal to the initial upward velocity.

8 0
3 years ago
A horizontal uniform meter stick supported at the 50-cm mark has a mass of 0.50 kg hanging from it at the 20-cm mark and a 0.30
ElenaW [278]

Answer:

70 cm

Explanation:

0.5 kg at 20 cm

0.3 kg at 60 cm

x = Distance of the third 0.6 kg mass

Meter stick hanging at 50 cm

Torque about the support point is given by (torque is conserved)

0.5(50-20)=0.3(60-50)+0.6x\\\Rightarrow x=\dfrac{0.5(50-20)-0.3(60-50)}{0.6}\\\Rightarrow x=20\ cm

The position of the third mass of 0.6 kg is at 20+50 = 70 cm

7 0
4 years ago
Read 2 more answers
What the exercise or play in the p.e in the philippines?<br> please!!!!, please!!!!
Debora [2.8K]

Answer:

They could be jumping off structures, running or climbing on rocks. They also could be participating in sports like soccer.

Explanation:

sources:

https://www.philippinesbasiceducation.us/2013/06/physical-activity-and-physical.html - about there play schedule

http://sportphil.com/category/articles/  - concil of philippines

Sorry that's all I could find.

5 0
3 years ago
Read 2 more answers
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